|
University of California, Berkeley
|
2D and 3D Plasma Modeling
|
|
|
The XOOPIC code suite is a set of particle-in-cell plasma simulation codes for modeling plasmas in two and three dimensions. XOOPIC includes electrostatic and electromagnetic models, collision models for mixtures of noble gases, and a wide range of boundary conditions which can be specified from an input file without recompiling.XOOPIC can be used to simulate basic plasma phenomena, microwave-beam...
|
 |
|
|
|
|
University of California, Berkeley
|
2D and 3D Plasma Modeling
|
|
|
The XOOPIC code suite is a set of particle-in-cell plasma simulation codes for modeling plasmas in two and three dimensions. XOOPIC includes electrostatic and electromagnetic models, collision models for mixtures of noble gases, and a wide range of boundary conditions which can be specified from an input file without recompiling.XOOPIC can be used to simulate basic plasma phenomena, microwave-beam...
|
|
|
|
|
|
|
University of California, Berkeley
|
A UNIVERSAL, LIGHT-SWITCHABLE GENE PROMOTER SYSTEM
|
|
|
Synopsis:This invention consists of an artificial promoter system that can be fused upstream of any desired gene, enabling reversible and light-switchable induction or repression of gene expression in any suitable host cell.New data to be filed in a provisional patent application demonstrates optimized expression conditionsand a "switching off" mechanism in addition to the "switching on" mechanism...
|
|
|
|
|
|
|
University of California, Berkeley
|
A UNIVERSAL, LIGHT-SWITCHABLE GENE PROMOTER SYSTEM
|
|
|
Synopsis:This invention consists of an artificial promoter system that can be fused upstream of any desired gene, enabling reversible and light-switchable induction or repression of gene expression in any suitable host cell.New data to be filed in a provisional patent application demonstrates optimized expression conditionsand a "switching off" mechanism in addition to the "switching on" mechanism...
|
|
|
|
|
|
|
University of California, Berkeley
|
A UNIVERSAL, LIGHT-SWITCHABLE GENE PROMOTER SYSTEM
|
|
|
Synopsis:This invention consists of an artificial promoter system that can be fused upstream of any desired gene, enabling reversible and light-switchable induction or repression of gene expression in any suitable host cell.New data to be filed in a provisional patent application demonstrates optimized expression conditionsand a "switching off" mechanism in addition to the "switching on" mechanism...
|
|
|
|
|
|
|
University of California, Berkeley
|
A UNIVERSAL, LIGHT-SWITCHABLE GENE PROMOTER SYSTEM
|
|
|
Synopsis:This invention consists of an artificial promoter system that can be fused upstream of any desired gene, enabling reversible and light-switchable induction or repression of gene expression in any suitable host cell.New data to be filed in a provisional patent application demonstrates optimized expression conditionsand a "switching off" mechanism in addition to the "switching on" mechanism...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Axial Light-Force Sensor
|
|
|
Commercially available optical tweezers can move objects using laser light, but they are generally not used to measure forces exerted on those objects, since accurate force calibration is difficult. Research in the field of optical trapping has led to the development of optical tweezers that measure forces (transverse to optic axis) by changes in light-momentum. Force calibration is greatly simpli...
|
|
|
|
|
|
|
University of California, Berkeley
|
Biomimetically Inspired Artificial Compound Eyes
|
|
|
Compound eyes in nature have been one of the most studied and intriguing topics in physiological optics due to their unique optical scheme for imaging. Hundreds to ten thousands of integrated optical units called ommatidia are spherically arranged along a curvilinear surface and point in different directions. Each ommatidium collects light within a small angular acceptance and collectively they co...
|
|
|
|
|
|
|
University of California, Berkeley
|
Biomimetically Inspired Artificial Compound Eyes
|
|
|
Compound eyes in nature have been one of the most studied and intriguing topics in physiological optics due to their unique optical scheme for imaging. Hundreds to ten thousands of integrated optical units called ommatidia are spherically arranged along a curvilinear surface and point in different directions. Each ommatidium collects light within a small angular acceptance and collectively they co...
|
|
|
|
|
|
|
University of California, Berkeley
|
Biomimetically Inspired Artificial Compound Eyes
|
|
|
Compound eyes in nature have been one of the most studied and intriguing topics in physiological optics due to their unique optical scheme for imaging. Hundreds to ten thousands of integrated optical units called ommatidia are spherically arranged along a curvilinear surface and point in different directions. Each ommatidium collects light within a small angular acceptance and collectively they co...
|
|
|
|
|
|
|
University of California, Berkeley
|
Biomimetically Inspired Artificial Compound Eyes
|
|
|
Compound eyes in nature have been one of the most studied and intriguing topics in physiological optics due to their unique optical scheme for imaging. Hundreds to ten thousands of integrated optical units called ommatidia are spherically arranged along a curvilinear surface and point in different directions. Each ommatidium collects light within a small angular acceptance and collectively they co...
|
|
|
|
|
|
|
University of California, Berkeley
|
Biomimetically Inspired Artificial Compound Eyes
|
|
|
Compound eyes in nature have been one of the most studied and intriguing topics in physiological optics due to their unique optical scheme for imaging. Hundreds to ten thousands of integrated optical units called ommatidia are spherically arranged along a curvilinear surface and point in different directions. Each ommatidium collects light within a small angular acceptance and collectively they co...
|
|
|
|
|
|
|
University of California, Berkeley
|
Biomimetically Inspired Artificial Compound Eyes
|
|
|
Compound eyes in nature have been one of the most studied and intriguing topics in physiological optics due to their unique optical scheme for imaging. Hundreds to ten thousands of integrated optical units called ommatidia are spherically arranged along a curvilinear surface and point in different directions. Each ommatidium collects light within a small angular acceptance and collectively they co...
|
|
|
|
|
|
|
University of California, Berkeley
|
Broad Bandwidth and Highly Reflective Gratings
|
|
|
Broadband mirrors with very high reflectivity are essential for applications such as telecommunications, surveillance, sensors and imaging. Among the various conventional mirror designs, metal mirrors have larger reflection bandwidths but lower reflectivities; as a result they are not suitable for fabricating transmission-type optical devices such as etalon filters. Dielectric distributed Bragg re...
|
|
|
|
|
|
|
University of California, Berkeley
|
Broad Bandwidth and Highly Reflective Gratings
|
|
|
Broadband mirrors with very high reflectivity are essential for applications such as telecommunications, surveillance, sensors and imaging. Among the various conventional mirror designs, metal mirrors have larger reflection bandwidths but lower reflectivities; as a result they are not suitable for fabricating transmission-type optical devices such as etalon filters. Dielectric distributed Bragg re...
|
|
|
|
|
|
|
University of California, Berkeley
|
Broad Bandwidth and Highly Reflective Gratings
|
|
|
Broadband mirrors with very high reflectivity are essential for applications such as telecommunications, surveillance, sensors and imaging. Among the various conventional mirror designs, metal mirrors have larger reflection bandwidths but lower reflectivities; as a result they are not suitable for fabricating transmission-type optical devices such as etalon filters. Dielectric distributed Bragg re...
|
|
|
|
|
|
|
University of California, Berkeley
|
Broad Bandwidth and Highly Reflective Gratings
|
|
|
Broadband mirrors with very high reflectivity are essential for applications such as telecommunications, surveillance, sensors and imaging. Among the various conventional mirror designs, metal mirrors have larger reflection bandwidths but lower reflectivities; as a result they are not suitable for fabricating transmission-type optical devices such as etalon filters. Dielectric distributed Bragg re...
|
|
|
|
|
|
|
University of California, Berkeley
|
Broad Bandwidth and Highly Reflective Gratings
|
|
|
Broadband mirrors with very high reflectivity are essential for applications such as telecommunications, surveillance, sensors and imaging. Among the various conventional mirror designs, metal mirrors have larger reflection bandwidths but lower reflectivities; as a result they are not suitable for fabricating transmission-type optical devices such as etalon filters. Dielectric distributed Bragg re...
|
|
|
|
|
|
|
University of California, Berkeley
|
Broad Bandwidth and Highly Reflective Gratings
|
|
|
Broadband mirrors with very high reflectivity are essential for applications such as telecommunications, surveillance, sensors and imaging. Among the various conventional mirror designs, metal mirrors have larger reflection bandwidths but lower reflectivities; as a result they are not suitable for fabricating transmission-type optical devices such as etalon filters. Dielectric distributed Bragg re...
|
|
|
|
|
|
|
University of California, Los Angeles
|
Cascaded Cavity Silicon Raman Laser
|
|
|
Silicon has many desirable properties that make it useful for optical and optoelectronic integration. Heretofore, silicon has been employed in passive optoelectronic components such as waveguides. However, silicon is generally perceived to be void of useful nonlinear optical properties needed for active optical functions such as wavelength conversion and amplification. An approach to realizing ac...
|
|
|
|
|
|
|
University of California, Los Angeles
|
Coherent Optical Multiple-Input Multiple-Output Communication
|
|
|
The advantage of MMF versus single-mode optical fiber (SMF), or similarly, multimode waveguides over single mode waveguides, is the ease of optical alignment which translates into lower cost manufacturing. However, this advantage comes at a severe penalty in speed and distance. These limits are due to multiple optical paths traveling down the length of the medium, a phenomenon also called modal d...
|
|
|
|
|
|
|
California Institute of Technology
|
Coherent optics blood cell classification system
|
|
|
A system for classifying the various major types of blood cells is provided wherein blood cells are passed before a laser beam. The redirected light energy passing through the cell is applied to a detector array which provides a voltage spectrum representa...
|
|
|
|
|
|
|
Stanford University
|
Diode Laser Pumped Co-Doped Laser
|
|
|
A miniature solid state near room temperature laser includes a laser crystal doped with a laser ion and an absorber ion. The absorber ion absorbs pumping radiation derived from the output of a laser diode and transfers the absorbed energy to the laser ion for inverting the population of the desired energy transition levels to produce an eyesafe output beam with wavelengths greater than 1.4 microns...
|
|
|
|
|
|
|
Stanford University
|
Diode Laser Pumped, Intracavity Double Blue Source
|
|
|
A source of coherent blue light comprises a diode laser for pumping a Nd3+ doped member of lasant material disposed within an optical resonator for exciting the 4 F3/2 -4 I9/2 laser transition of a wavelength within the range of 0.870 to 0.960 m. The laser radiation within the optical resonator is doubled by means of a doubler crystal of a non-linear, electro-optic material to produce blue light w...
|
|
|
|
|
|
|
Stanford University
|
Displacement-sensitive Photonic Crystal Structures
|
|
|
In optical devices such as switches and modulators, the mechanical parts typically need to move by distances close to the operating light's wavelength. Reducing this distance is critical to optical MEMS research, because this reduction directly increases the device's response speed and reduces the actuation force. This invention introduces mechanically tunable photonic crystal structures consistin...
|
|
|
|
|
|
|
Stanford University
|
DNA Fragment Identification System based on Magnetic Nanoparticles
|
|
|
The development of high sensitivity, quantitative DNA fragment detection and identification systems has been of growing importance in the fields of functional genomics, forensics, bio-defense, anti-bioterrorism, and other biotechnology applications. However, virtually all DNA fragment detection systems used today rely on fluorescent detection, which can be very costly. Researchers at Stanford have...
|
|
|
|
|
|
|
Stanford University
|
Domain-engineered ferroelectrics at large crystal angles
|
|
|
This invention introduces domain engineered ferroelectrics at large crystal angles that provides greater flexibility in designing key device characteristics in several optical, acoustical, pyroelectric and piezoelectric devices. As an example, by engineering both crystal angle and domain pattern, one can fabricate optical devices with higher peak power handling capabilities in comparison to their ...
|
|
|
|
|
|
|
California Institute of Technology
|
Dual beam optical interferometer
|
|
|
A dual beam interferometer device is disclosed that enables moving an optics module in a direction, which changes the path lengths of two beams of light. The two beams reflect off a surface of an object and generate different speckle patterns detected by a...
|
|
|
|
|
|
|
|
|
|
|
Stanford University
|
Efficient Harmonic Generation using a Resonant Nonlinear Cavity
|
|
|
TEM.sub.OOq laser radiation derived from a diode-pumped ring laser is directed into a faceted member of nonlinear optical material defining either a standing wave or ring monolithic optical resonator to generate harmonic laser radiation. The losses of the optical resonator, exclusive of the conversion loss to the harmonic, are made sufficiently low such that the dominant loss presented to the reso...
|
|
|
|
|
|
|
Stanford University
|
Elastomer Spatial Light Modulators for EUV Lithography
|
|
|
Extreme ultraviolet (EUV) lithography is a promising technology for delineating critical dimensions of 100 nm or smaller. Due to the high cost and difficulties of fabricating defect-free EUV masks, using programmable spatial light modulators to replace masks seems to be a cost-effective alternative. We present the design and process for elastomer spatial light modulators that can be scaled to meet...
|
|
|
|
|
|
|
University of California, Los Angeles
|
Electrical Modulation and Active Mode Locking of a Silicon Raman Laser and Application to Mid-IR
|
|
|
Silicon has many desirable properties that make it useful for optical and optoelectronic integration. Heretofore, silicon has been employed in passive optoelectronic components such as waveguides. An approach to realizing an active silicon Raman laser is documented in UCLA Case 2005-171. The next step in silicon Raman lasers is to control the modulation, switching and active mode locking of the l...
|
|
|
|
|
|
|
Stanford University
|
Electroosmotic micropumps with planar features
|
|
|
Two types of electroosmotic micropumps with planar features have been invented that can be built and integrated with microfabricated devices. These pumps address the challenge posed by applications requiring high fluidic pressures in IC or microsystems applications. Electroosmotic pumping is induced by the application of electric field to a fluid channel with charged walls. The working liquids can...
|
|
|
|
|
|
|
University of California, Berkeley
|
Electrostatic Microactuator for Phase Micromirror Arrays
|
|
|
Micromirror arrays represent a huge market opportunity in a variety of sectors from optical displays, scanners and communication switches, to maskless lithography and optical spectroscopy. In the conventional design of these arrays, mirrors are mounted on tiltable cantilevers. However, in high frequency and analog applications a phased-mirror approach would be more useful. In this design, mirrors ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Electrostatic Microactuator for Phase Micromirror Arrays
|
|
|
Micromirror arrays represent a huge market opportunity in a variety of sectors from optical displays, scanners and communication switches, to maskless lithography and optical spectroscopy. In the conventional design of these arrays, mirrors are mounted on tiltable cantilevers. However, in high frequency and analog applications a phased-mirror approach would be more useful. In this design, mirrors ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Electrostatic Microactuator for Phase Micromirror Arrays
|
|
|
Micromirror arrays represent a huge market opportunity in a variety of sectors from optical displays, scanners and communication switches, to maskless lithography and optical spectroscopy. In the conventional design of these arrays, mirrors are mounted on tiltable cantilevers. However, in high frequency and analog applications a phased-mirror approach would be more useful. In this design, mirrors ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Electrostatic Microactuator for Phase Micromirror Arrays
|
|
|
Micromirror arrays represent a huge market opportunity in a variety of sectors from optical displays, scanners and communication switches, to maskless lithography and optical spectroscopy. In the conventional design of these arrays, mirrors are mounted on tiltable cantilevers. However, in high frequency and analog applications a phased-mirror approach would be more useful. In this design, mirrors ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Electrostatic Microactuator for Phase Micromirror Arrays
|
|
|
Micromirror arrays represent a huge market opportunity in a variety of sectors from optical displays, scanners and communication switches, to maskless lithography and optical spectroscopy. In the conventional design of these arrays, mirrors are mounted on tiltable cantilevers. However, in high frequency and analog applications a phased-mirror approach would be more useful. In this design, mirrors ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Electrostatic Microactuator for Phase Micromirror Arrays
|
|
|
Micromirror arrays represent a huge market opportunity in a variety of sectors from optical displays, scanners and communication switches, to maskless lithography and optical spectroscopy. In the conventional design of these arrays, mirrors are mounted on tiltable cantilevers. However, in high frequency and analog applications a phased-mirror approach would be more useful. In this design, mirrors ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Electrostatic Microactuator for Phase Micromirror Arrays
|
|
|
Micromirror arrays represent a huge market opportunity in a variety of sectors from optical displays, scanners and communication switches, to maskless lithography and optical spectroscopy. In the conventional design of these arrays, mirrors are mounted on tiltable cantilevers. However, in high frequency and analog applications a phased-mirror approach would be more useful. In this design, mirrors ...
|
|
|
|
|
|
|
Stanford University
|
Enhanced Surface Plasmon Resonator Sensor
|
|
|
The Surface Plasmon Resonance (SPR) Sensor is one of the most utilized tools for label-free in situ monitoring of bio-molecular interactions in real-time. By monitoring the evanescent wave generated by the SPR sensor, the kinetic and affinity constants of molecular interaction (as well as the active bio-molecular concentration), can be quantitatively measured for different biological interactions,...
|
|
|
|
|
|
|
University of California, Davis
|
Enzyme Catalyzed Metallic Nanoparticle Synthesis at Room Temperature
|
|
|
Metallic nanoparticles are a core component of modern nanotechnology, yet their production still suffers major limitations. The heart of this new approach lies in the precise control of the number of nucleation sites by placing the metal ions to be reduced at the active sites of enzymes that catalyze their reduction. Such nucleation control has been extremely difficult to achieve in typical soluti...
|
|
|
|
|
|
|
Stanford University
|
Fiber Optical Digital Communication System
|
|
|
In modern optical networks, after several stages of optical amplification, noise accumulation requires regeneration. The identified problem of optical regeneration is addressed with a novel technique and new device based on embedding an optical resonator into the fiber core. This invention serves as an optical switch and an all-optical repeater for WDM transmission systems. All-optical switching f...
|
|
|
|
|
|
|
Stanford University
|
Fractal Extensions of Near-Field Nano Aperture Shapes for Enhanced Transmission and Improved Resolution
|
|
|
Much work has been done in overcoming the diffraction limit by operating in the near field of a sub-wavelength aperture in an opaque metal screen. The major difficulty with this method is that transmission is extremely poor through sub-wavelength apertures. Two types of geometries have been explored to enhance this transmission. The first method is placing the apertures in a periodic array in orde...
|
|
|
|
|
|
|
University of California, Berkeley
|
Frequency Addressing Method for Large Arrays of Mechanical Structures
|
|
|
Shack-Hartmann (SH) sensors are used in a growing number of optical wavefront applications, however the conventional design of these sensors limits their dynamic range, and consequently they produce false results if the curvature of the measured wave-front is too large. To overcome this dynamic-range limitation, designers have tried a modified unwrapped algorithm, a microlens array with well-defin...
|
|
|
|
|
|
|
University of California, Berkeley
|
Frequency Addressing Method for Large Arrays of Mechanical Structures
|
|
|
Shack-Hartmann (SH) sensors are used in a growing number of optical wavefront applications, however the conventional design of these sensors limits their dynamic range, and consequently they produce false results if the curvature of the measured wave-front is too large. To overcome this dynamic-range limitation, designers have tried a modified unwrapped algorithm, a microlens array with well-defin...
|
|
|
|
|
|
|
University of California, Berkeley
|
Frequency Addressing Method for Large Arrays of Mechanical Structures
|
|
|
Shack-Hartmann (SH) sensors are used in a growing number of optical wavefront applications, however the conventional design of these sensors limits their dynamic range, and consequently they produce false results if the curvature of the measured wave-front is too large. To overcome this dynamic-range limitation, designers have tried a modified unwrapped algorithm, a microlens array with well-defin...
|
|
|
|
|
|
|
Stanford University
|
Gas Sensor for Ammonia, Carbon Dioxide, and Water
|
|
|
This invention uses a radiation source (such as a laser) to measure the presence of ammonia, carbon dioxide and water vapor; isolating the different absorption features from each other and enabling species-specific measurements without interference from primary bath gas constituents.Most applications for which measurements of trace ammonia concentration are pertinent include high background levels...
|
|
|
|
|
|
|
Stanford University
|
General Recipe for Designing Photonic Crystal Cavities
|
|
|
The invention describes a simpler, more efficient method for designing high quality, two-dimensional photonic crystal cavities of finite depth. At present, photonic crystal cavities are designed by an extensive parameter space search, or by a limited parameter space search based on the intuition or experience of the designer. This requires enormous computational power and a long computational time...
|
|
|
|
|
|
|
Stanford University
|
Generation of yellow light through direct frequency doubling of Yb fiber system
|
|
|
This invention presents an efficient, scalable method to generate yellow laser light for medical applications such as dermatology and ophthalmology, and as guide stars for large telescopes. It combines a number of novel techniques to efficiently generate high-power linearly polarized light from a diode-pumped Yb-doped fiber laser at wavelengths greater than 1135 nm. For example, this invention has...
|
|
|
|
|
|
|
Stanford University
|
High-Power Fiber Lasers
|
|
|
In recent years high power fiber lasers have been manufactured with ever-increasing optical powers. An important objective in the design of many optical fiber lasers is to obtain amplification of only a single transverse mode of the fiber core. Currently available techniques to achieve this type of amplification involve severely limiting the size of the fiber core, which limits the achievable outp...
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jet Propulsion Laboratory
|
Imaging spectrometer/camera having convex grating
|
|
|
An imaging spectrometer has fore-optics coupled to a spectral resolving system with an entrance slit extending in a first direction at an imaging location of the fore-optics for receiving the image, a convex diffraction grating for separating the image int...
|
|
|
|
|
|
|
Stanford University
|
Integrated Fluorescence Sensor
|
|
|
This integrated fluorescence sensor allows the scaling down of biological analysis systems to create smaller and more portable biosensors for use in areas of bio-warfare, clinical medicine and biological experimentation. The integration of lasers, emission filters, and photo-detectors onto a single chip results in a cheaper method of bio-detection while maintaining the system's parallelism and rob...
|
|
|
|
|
|
|
Stanford University
|
Measurement of Metallic Film Thickness Using a New Optical Technique
|
|
|
The fabrication of integrated circuits relies on measurement tools that can provide accurate information on the thickness of dielectric and metallic thin films. Numerous techniques exist for the measurement of dielectric films; however, these methods are ineffective for measuring metallic films, in particular Cu interconnects, which link electronic transistors in integrated circuits. This inventio...
|
|
|
|
|
|
|
Stanford University
|
Mechanically Switchable Photonic Crystal Filter
|
|
|
This invention introduces a new type of optical all-pass filter based upon guided resonance in coupled photonic crystal slabs. The all-pass filter exhibits near complete transmission for both on and off resonant frequencies, yet generates large resonant group delay. Unlike all previously reported all-pass reflection filters, the introduced structure generates all-pass transmission spectrum, which ...
|
|
|
|
|
|
|
University of California, Irvine
|
Method for Quantitative Digital Color Imaging of Objects
|
|
|
University of California researchers have developed a method for acquiring and analyzing polarization sensitive digital color images of objects. Polarization optics provide the user with the ability to discriminate between superficial and deeper structures in an object. Various linear transformations can be applied to the images to obtain information in alternate color spaces; this can be tailored...
|
|
|
|
|
|
|
University of California, Berkeley
|
Method for Stabilizing the View of the Image of the Retina Seen in Ophthalmoscopy
|
|
|
During most eye examinations, the retina inspected by the clinician using an "ophthalmoscope" optical system that provides a view through the patient's pupil which is usually dilated to facilitate this inspection. Any eye movements cause the image of the retina to move and this makes the examination more difficult.This difficulty is extraordinarily pronounced in nystagmus, which is a constant quiv...
|
|
|
|
|
|
|
University of California, Berkeley
|
Method for Stabilizing the View of the Image of the Retina Seen in Ophthalmoscopy
|
|
|
During most eye examinations, the retina inspected by the clinician using an "ophthalmoscope" optical system that provides a view through the patient's pupil which is usually dilated to facilitate this inspection. Any eye movements cause the image of the retina to move and this makes the examination more difficult.This difficulty is extraordinarily pronounced in nystagmus, which is a constant quiv...
|
|
|
|
|
|
|
University of California, Berkeley
|
Method for Stabilizing the View of the Image of the Retina Seen in Ophthalmoscopy
|
|
|
During most eye examinations, the retina inspected by the clinician using an "ophthalmoscope" optical system that provides a view through the patient's pupil which is usually dilated to facilitate this inspection. Any eye movements cause the image of the retina to move and this makes the examination more difficult.This difficulty is extraordinarily pronounced in nystagmus, which is a constant quiv...
|
|
|
|
|
|
|
University of California, Irvine
|
Method for the Robust Determination of the Fluid Mixing Efficiency
|
|
|
University researchers have developed a method that allows the robust determination of the mixing efficiency of fluids that molecularly mix in processes or devices. The method offered by this invention takes advantage of the structure and dynamics of the outer-fluid interfaces in turbulent flows to monitor in real time the mixing efficiency at reduced spatial resolution requirements....
|
|
|
|
|
|
|
University of California, Berkeley
|
Method of Fabricating Patterned Surfaces with Nanoparticles and Nanowires
|
|
|
The capability to pattern closely spaced gold or other nanoparticles has significant potential in nano- electronics and photonics applications such as electrically conducting wires, and as plasmon wave guides.To address this opportunity, researchers at UC Berkeley have developed an innovative method for fabricating nanoscale patterned surfaces with nanoparticles and nanowires. Using this approach,...
|
|
|
|
|
|
|
University of California, Berkeley
|
Method of Fabricating Patterned Surfaces with Nanoparticles and Nanowires
|
|
|
The capability to pattern closely spaced gold or other nanoparticles has significant potential in nano- electronics and photonics applications such as electrically conducting wires, and as plasmon wave guides.To address this opportunity, researchers at UC Berkeley have developed an innovative method for fabricating nanoscale patterned surfaces with nanoparticles and nanowires. Using this approach,...
|
|
|
|
|
|
|
Stanford University
|
Methods for Domain Control in Ferroelectric Crystals and Their Applications
|
|
|
A nonlinear waveguiding optical converter in a solid state body. The waveguide is provided with compositionally differing region (domains) of dominant electrical polarization in succeeding regions transverse to the path of guided radiation. Chemical and electrical poling is described, as well as an improved optical converter having a solid state body which employs the same. ...
|
|
|
|
|
|
|
Stanford University
|
Methods of Producing Crystals with Controlled Reversals of Ferroelectric Domains
|
|
|
A method of growing a single crystal rod with regions of reversed dominant ferroelectric polarities (poling the same) is described. It is a variation of laser-heated pedestal growth. The microscopic growth rate of the crystal is modulated to incorporate into the rod, the compositional melt gradient which is formed at the freezing interface. When this gradient is of the proper sign and the poling a...
|
|
|
|
|
|
|
Stanford University
|
Micromachined High Reflectance Deformable Mirror
|
|
|
A new silicon deformable mirror design has been developed which provides high reflectivity, an optical quality continuous surface, and high intensity handling capability. This mirror suitable for use in a wide range of adaptive optics applications. ...
|
|
|
|
|
|
|
Stanford University
|
Micromachined Segmented Deformable Mirrors
|
|
|
This invention uses a novel approach to design segmented deformable mirrors used in adaptive optics systems to compensate for the aberrations in a beam of light. The method allows the mirrors to be specifically designed and processed without taking into account the electrode fabrication process. The configuration makes it possible to move individual mirrors without changing their shape. ...
|
|
|
|
|
|
|
University of California, Irvine
|
Microscope Immersion Fluid Applicator
|
|
|
Researchers at the University of California, Irvine have designed a simple device to deliver immersion fluid (oil, water, glycerin, etc.) onto the specimen without removing the specimen from the microscope stage. Many microscope manufacturers have developed microscopes designed so that each objective in the turret can be rotated into place with high repeatability of alignment so that the specimen ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
University of California, Berkeley
|
Nanometer-Scale Semiconductor Probe
|
|
|
There are a vast number of benefits to be obtained through the miniaturization of electrical, optical, and magnetic components. Accordingly, it is necessary to have improved techniques for characterizing the surface topography and corresponding electrical, optical, and magnetic properties. A wide variety of surface probes have been develop to scan the surface of these components.However, the avail...
|
|
|
|
|
|
|
|
|
|
|
Stanford University
|
Nonlinear Optical Endoscopy and Microscopy
|
|
|
This invention introduces a novel, portable, nonlinear optical imaging microscope or endoscope. The device enables sub-surface imaging of both external tissue as well as deep tissue structures in vivo in a minimally invasive manner. Furthermore, nonlinear imaging modalities provide inherent optical sectioning and the capability for three-dimensional imaging. The imaging device is constructed by em...
|
|
|
|
|
|
|
Stanford University
|
Nonlinear Physical Optics with Transversely Patterned QPM Gratings
|
|
|
Nonlinear physical optical devices use quasi-phase-matching gratings to create the nonlinear analogue of familiar linear optical devices. Using transverse patterning of gratings, it is possible to achieve independent amplitude and phase control over the output beam of a nonlinear mixing device, in one dimension. We have demonstrated various single and multiple slit diffraction devices, diffraction...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
University of California, Berkeley
|
Novel Actuator for Low Power, Vertical-Cavity Surface-Emitting Lasers (VCSEL)
|
|
|
Expanding interest in all-optical communications has increased the market need for tunable VCSELs. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in point-to-point links used for dense wavelength division multiplexing (DWDM) networks. They are also useful in the next generation of chip-scale atomic clocks, which require ultra-low power budgets. VCSELs ar...
|
|
|
|
|
|
|
Stanford University
|
Odd Waveguide Mode Quasi-Phase Matching
|
|
|
Modified quasi-phase-matching gratings can efficiently control which waveguide modes interact in a nonlinear optical device. Spatial control over the symmetry of the nonlinear coefficient within a waveguide adds a new degree of freedom in choosing input and output modes. It enables, for example, phase-matching of odd waveguide modes in a channel waveguide (which would otherwise be impossible). We ...
|
|
|
|
|
|
|
University of California, Berkeley
|
Optical Coupling Technology
|
|
|
The Regents of the University of California has available for licensing a significant portfolio of patents related to optical coupling technology.Patent No. 5,163,107 Fiber optic coupler/connector with GRIN lens: A robust, removable, optic fiber coupler which allows for a simple, passive optic fiber alignment without concern for large mechanical discrepancies of slight contamination between the co...
|
|
|
|
|
|
|
University of California, Berkeley
|
Optical Coupling Technology
|
|
|
The Regents of the University of California has available for licensing a significant portfolio of patents related to optical coupling technology.Patent No. 5,163,107 Fiber optic coupler/connector with GRIN lens: A robust, removable, optic fiber coupler which allows for a simple, passive optic fiber alignment without concern for large mechanical discrepancies of slight contamination between the co...
|
|
|
|
|
|
|
California Institute of Technology
|
Optical parametric oscillator cavity design
|
|
|
An optical parametric oscillator which operates with uncoated optics and a non-linear crystal. The pulse length is long relative to the cavity length, and hence the pump is still operating when the crystal flouresces. The fresnel reflection from the uncoat...
|
|
|
|
|
|
|
California Institute of Technology
|
Opto-electronic morphological processor
|
|
|
The opto-electronic morphological processor of the present invention is capable of receiving optical inputs and emitting optical outputs. The use of optics allows implementation of parallel input/output, thereby overcoming a major bottleneck in prior art i...
|
|
|
|
|
|
|
Stanford University
|
Propagating modes in subwavelength cylindrical holes in an optically thick metallic film
|
|
|
The transmission of light through holes smaller than the wavelength of incident light is significantly increased in a new region of operation that has been identified and analyzed. The analysis shows that light can be transmitted through a high-density packing of nano-dimensional cylindrical holes in optically thick metallic film without diffraction. Based on this analysis, single holes and hole a...
|
|
|
|
|
|
|
University of California, Berkeley
|
Reducing Speckle in Coherent Lasers
|
|
|
This Invention seeks to reduce the problem of speckle in coherent lasers that are used for microlithography in the fabrication of semiconductor integrated circuits. It utilizes a method and apparatus for producing a large number of pulses from a single laser pulse. These pulses are delayed and rotated in such a manner that pulse interference (hence speckle effect) is extremely low....
|
|
|
|
|
|
|
University of California, Berkeley
|
Reducing Speckle in Coherent Lasers
|
|
|
This Invention seeks to reduce the problem of speckle in coherent lasers that are used for microlithography in the fabrication of semiconductor integrated circuits. It utilizes a method and apparatus for producing a large number of pulses from a single laser pulse. These pulses are delayed and rotated in such a manner that pulse interference (hence speckle effect) is extremely low....
|
|
|
|
|
|
|
Stanford University
|
Stopping light in a waveguide with an all-optical analogue of electromagnetically induced transparency
|
|
|
A new all-optical means for completely stopping and recovering light pulses has been demonstrated. Successfully simulated in photonic crystals, this ability to harness light enables completely new information processing capabilities. This mechanism is an enhancement of the novel process developed earlier by the same inventors, which overcame the bandwidth constraints in optical systems that utiliz...
|
|
|
|
|
|
|
University of California, Los Angeles
|
Superlattice Nanopattern (SNAP) of Wires and Complex Patterns
|
|
|
Similar devices to what is discussed herein are currently fabricated using photolithography and related processes often employed by the semiconductor industry. Such devices currently have features on the order of tenths of micrometers. Many companies are currently trying to reduce the sizes of wires to keep up with Moore's Law. Current alternatives include the use of X-rays, electrons, ions, or s...
|
|
|
|
|
|
|
Stanford University
|
Two-dimensional photonic crystal resonator arrays
|
|
|
This invention introduces a novel design for photonic crystal slab structure, which consists of two-dimensional arrays of coupled photonic crystal resonators. This structure provides isolated electromagnetic bands that are flattened (reduced group velocity - high density of states) over the entire range of wavevectors and in all crystal directions inside the photonic bandgap. Such bands can be use...
|
|
|
|
|
|
|
University of California, Davis
|
Ultra-Compact, Rapidly Tunable Infrared Source
|
|
|
A rapidly tunable, ultra-compact, room temperature infrared source has been developed by University of California, Davis researchers. Over a very wide spectral range, the source provides continuous-wave and difference-frequency generation in a highly nonlinear optical semiconductor wave-guide. The integrated high power semiconductor lasers provide turntable pump and signal waves, used in:
T...
|
|
|
|
|
|
|
Stanford University
|
Ultra-Slow Down and Storage of Light Pulses
|
|
|
This invention shows how the use of tunable photonic structures opens up unprecedented possibilities in information processing. In particular, an all-optical adiabatic bandwidth compression and frequency conversion process is introduced to overcome the classical bandwidth-delay constraint in optics. This process requires only very small index modulations (dn/n<10-4) performed at moderate speeds...
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Stanford University
|
Virtual Camera
|
|
|
This invention is a novel software simulator developed to model different components of a CMOS camera system. The temporal, spatial and color sampling properties of CMOS sensors make it possible to sample outputs rapidly and to digitize and store data at each pixel. This approach provides a physically accurate model for the complex system of CMOS sensor array for imaging applications. The simulati...
|
|
|
|
|
|
|
University of Southern California
|
X-Ray Diffractor with Stepped Surface and Method of Formation
|
|
|
This invention consists of a diffractor with stepped surfaces on which small pieces of lamellar crystal are deposited. The crystal planes are parallel to the surfaces of the steps. The method of fabrication is also described....
|
|
|
|
