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5406072 |
Method for microbeam ion radiation testing of photonic devices
The disclosed method is for radiation testing of a nanostructure photonic device under test (DUT). The method comprises the application of a beam of optical energy to the DUT, and then establishing...
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5401953 |
Optically-switched submillimeter-wave oscillator and radiator having a switch-to-switch propagation delay
A submillimeter wave-generating integrated circuit includes an array of N photoconductive switches biased across a common voltage source and an optical path difference from a common optical pulse...
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5397889 |
Guided-wave photoreceptor based on quantum wells made of semiconductor materials, particularly for coherent communications system with polarization diversity
Guided-wave photoreceptor based on quantum wells made of semiconductor materials, particularly for coherent communications system with polarization diversity. This photoreceptor has at least one...
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5396060 |
Quadrant detector arrangement having integral light channels
A quadrant detector arrangement (10) includes a quadrant detector (12) having a photosensitive surface (28) and a plurality of light channels (14) extending therethrough. Light from a light source...
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5391868 |
Low power serial bias photoconductive detectors
An array (10) of photoconductive (PC) radiation detectors includes a substrate (1) and a body (12) of PC material that is disposed upon the substrate. The body of PC material has a substantially...
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5386123 |
Beam steering sensor for a raster scanner using a lateral effect detecting device
An apparatus and method for reliably monitoring the position of a radiant energy beam, for example, a scanning laser beam such as that produced by a raster output scanning system to expose a...
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5382788 |
Monolithic photoconductive bipolar pulsar utilizing a radial transmission line
A monolithic photoconductive pulsar utilizing a radial transmission line structure to store energy and a unique optical pulse illumination means to trigger the radial transmission line to radiate...
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5382787 |
Photoconductive material
The invention provides a temperature switch material capable of detecting a very low temperature not higher than 150 K. It also provides a light switch material for detecting light in the...
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5381001 |
Detection cell, a detector, a sensor, and a spectroscope using a superconductive tunneling junction
The present invention relates mainly to a detection cell, a matrix detector using such cells, a sensor including such a detector, and a spectroscope including such a sensor. The invention provides...
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5365054 |
Optical detector having a plurality of matrix layers with cobalt disilicide particles embedded therein
Silicon and metal are coevaporated onto a silicon substrate in a molecular beam epitaxy system with a larger than stoichiometric amount of silicon so as to epitaxially grow particles of metal...
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5362960 |
Photoelectric transducing device having a self-exciting oscillating mechanism
A photoelectric transducer advantageously usable as an electrical energy source for driving units of work modules and sensors of a micromachine is provided. This photoelectric transducer is...
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5350916 |
Optoelectronic device and method of manufacturing same with an electrically insulating medium having a strip-shaped flexible foil
Optoelectronic devices in which optoelectronic components comprising a diode laser are fastened on a carrier plate having good heat conduction, and in which the carrier plate is provided with...
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5345074 |
Semiconductor light source
A semiconductor light source for transmitting light signals of digital or analog data having a laser diode and a photodiode for monitoring the output power of the laser diode. The driving current...
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5336966 |
4-layer structure reflection type photocathode and photomultiplier using the same
A high performance reflection type photocathode for use in a photomultiplier tube is formed by sequentially depositing three layers on a substrate made of nickel. The first layer is made of either...
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5324929 |
Device for detecting position and intensity of light and position detecting element to be employed therein
A device for detecting direction, height and intensity of a light which facilitates detection and provides high accuracy. The device includes a glass substrate, on which a resistant layer for...
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5319192 |
Wavelength discriminable optical signal detector insensitive to variations in optical signal intensity
An optical signal detector insensitive to variations in optical signal intensity and operably discriminable with respect to signal wavelength is provided. An incident optical signal comprised of...
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5319218 |
Pulse sharpening using an optical pulse
A photoconductive ultra-wideband impulse generating device utilizing pulse harpening techniques to further increase its radiation frequency well above the gigahertz range while also substantially...
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5319193 |
Light activated transducer
A light-activated transducer includes a transparent electrically-insulating substrate (2) having on one surface an electrode structure. The electrode structure includes an electrode portion (5a)...
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5315104 |
Photodiode photodetector with adjustable active area
The output of semiconductor optical sources is monitored by a photo detector including a photodiode having a photosensitivity which is less than the total active area of the device. Conveniently...
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5313058 |
Semiconductor optoelectronic detector
An optoelectronic detector using a photodetector (1) and a stress induction device for inducing elastic waves with the stress inducing device being mechanically coupled to the photodetector. The...
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5311011 |
Quantum interference devices and methods for processing interference current
An electron wave is propagated through a plurality of quantum-structure paths of a quantum interference device and is branched into into plural electron waves that are confined in the...
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5311098 |
Interference photocathode
An interference photocathode includes a reflective substrate and interference layers disposed on said reflective substrate for selectively enhancing a first photoelectric yield of said photocathode...
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5304794 |
Method for mixing optical and microwave signals using a GaAs MESFET
The present invention utilizes the internal photovoltaic effect of a GaAs SFET to mix an RF modulated optical signal with a microwave signal. As those skilled in the art will readily recognize, a...
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5298742 |
Light sensor for photo-dynamic therapy having a transparent housing
A light sensor constructed from a commercial photodiode packaged in a transparent housing of sufficient thickness to set the photodetector away from the underlying surface, thereby reducing the...
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5298735 |
Laser diode and photodetector circuit assembly
A laser diode having an output facet and a back facet is placed in contact with a designated edge of a die and oriented such that said output facet is substantially parallel to said top surface of...
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5296699 |
Quantum well photoelectric detector with improved detectivity
Photoelectric detector presenting a multiple quantum well structure, each quantum well comprising a first barrier made from a first semiconductor material, a well made from a second semiconductor...
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5296698 |
Lateral photo-sensing device, opt-electronic integrated circuit using the lateral photo-sensing device and photo-logic device using the lateral photo-sensing device
The present invention is directed to a lateral photo-sensing device comprising a first semiconductor layer of a first conductivity type formed on a semi-insulative semiconductor substrate, a second...
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5294789 |
Gamma-insensitive optical sensor
An ultra-violet/visible/infra-red gamma-insensitive gas avalanche focal plane array comprising a planar photocathode and a planar anode pad array separated by a gas-filled gap and across which is...
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5293037 |
Opto-electronic converter with electron mirrors and quantum wire
An opto-electronic converter comprises a mesoscopic resonant cavity constituted by a quantum wire made of a material that is a conductor or a semiconductor and situated between two electron mirrors...
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5291056 |
Electronic switch comprising a photosensitive semiconductor
An electronic switch comprises a photosensitive semiconductor (1,11,12) and a light source (14,24) which, when actuated, illuminates the semiconductor and causes the latter to become conductive,...
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5288989 |
Avalanche photodiode with moisture resistant passivation coating disposed to cover the outer periphery of the photodiode body except at a selected top contact area
An avalanche photodiode (APD) has a two tier passivation layer disposed over the silicon APD body. The passivation layer includes an inorganic moisture barrier layer and an organic dielectric...
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5283584 |
High power photon triggered ultra-wideband RF radiator with opposite apertures
A photoconductive switch coupled to an energy storage device wherein the tch is comprised of photoconductive semiconductor material while the energy storage device comprises two discrete dielectric...
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5283428 |
Photoelectric converting device and information processing apparatus employing the same
A photoelectric converting device provided with a control electrode area of a semiconductor of a first conductive type and at least two main electrode areas of a semiconductor of a second...
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5281804 |
Mirror apparatus for increasing light absorption efficiency of an optical detector
An optical detector having a detection surface and a mirror sized and positioned relative to the surface so as to receive and return light which is reflected off of the detecting surface within the...
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5281542 |
Planar quantum well photodetector
Using ion implant isolation, applicant has demonstrated a substantially planar quantum well photodetector free of exposed mesa side walls and having performance characteristics comparable with...
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5280168 |
Tapered radial transmission line for an optically activated hybrid pulser
The combination of a photoconductive switch coupled to an energy storage ice wherein the switch is comprised of photoconductive semiconductor switch while the energy storage device comprises a...
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5270532 |
Traveling-wave photodetector
The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a...
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5262657 |
Optically activated wafer-scale pulser with AlGaAs epitaxial layer
A device for generating pulses of radio frequency energy in response to pulses of laser light in which a circular wafer of GaAs has metallized annular layers ohmically bonded to the wafer by...
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5254850 |
Method and apparatus for improving photoconductor signal output utilizing a geometrically modified shaped confinement region
A method and apparatus for improving photoconductor signal output is provided in which a photon collection aperture receives photons. Charge carriers are generated in response to the photons in a...
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5252719 |
Process for preparing protein-oriented membrane
A process for producing a protein-oriented membrane which is enhanced physically and chemically by orienting protein and cross linking the oriented protein together, is described. The proteinaceous...
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5246803 |
Patterned dichroic filters for solid state electronic image sensors
Forming a color filter by vacuum depositing alternating layers of SiO 2 and TiO 2 at a temperature of less than 150° C.
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5223704 |
Planar buried quantum well photodetector
Using ion implant isolation, applicant has demonstrated a substantially planar quantum well photodetector free of exposed mesa side walls and having performance characteristics comparable with...
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5220398 |
Analog VLSI microchip for object position and orientation
An analog VLSI microchip which uses moments to determine the position and orientation of an object in a scene is disclosed. The imaging sensors are implemented on the chip itself using standard...
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5218223 |
Opto-electronic semiconductor component
An opto-electronic semiconductor component having a light transmission or receiving property including a light emitting or detecting active zone lying parallel to the principle surface of the...
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5216248 |
Photodetector with mask for stable output signal
A photodetector, for use as a scanning light beam detector in an optical scanner, has a light-detecting element having a light-detecting surface for detecting a scanning light beam. The...
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5216237 |
Optical detector with integral filter and having Fabry Perot resonator system
An optical detector such as a pin photodiode or avalanche photodiode is provided with an integral dielectric filter (8). The optical filter (8) preferably comprises a plurality of layers of silicon...
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5214276 |
Semiconductor structure for photodetector
A photodiode comprises e.g. an n-type semiconductor layer, a p-type semiconductor region selectively formed in a central part from a surface of the n-type semiconductor layer, a dish-like shaped...
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5210403 |
Radiation detecting device with a photocathode being inclined to a light incident surface
There is disclosed a phototube comprising a closed container having a light permeable face plate the outside surface of which is a light incident surface, a photocathode so provided in the closed...
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5204520 |
Avalanche photodiode array integrated with etched silicon divider
An avalanche photodiode array comprising a plurality of photosensitive regions in a light sensitive body with each photosensitive region having a semiconductor junction. Between said photosensitive...
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5202575 |
TFT-driven image sensor including a reduced-size capacitor structure
An image sensor comprising a photoelectric conversion element which includes a transparent electrode and a thin film transistor switching element which includes a drain electrode, wherein an...
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