Abstract: Electro-optical conversion of an input analog signal and optical modulation of the optical signal to provide light of different intensity levels to 2n photodetection sites whose outputs can be encoded as an n-bit digital output value. The sample rate can exceed 10 GHz (rates above 100 GHz are possible) with much greater simplicity of electronic circuitry.

Abstract: A light emitting structure has quantum wells grown on a coalesced substrate stemming from nanocolumns. The crystal structure is very low in defects and efficiency of light production is good. By growing the nanocolumns at a lower temperature, the quantum well structure is better matched to the coalesced substrate and efficiency is improved.

Abstract: This disclosure pertains to a testing method for a target pathogen. The method uses biosensors with particular fluorescence characteristics, such that when the biosensor binds to a target pathogen, a fluorophore may emit light if excited. The biosensor may be an aptamer-based biosensor with a fluorophore reporter and a quencher. The excitation of the fluorophore and the detection of fluorescence may be made through the use of a flashlight source and a camera from a mobile device, such as a smartphone.

Abstract: The array of gallium-nitride (GaN) nanocolumns have quantum wells in a polar c-plane or in a semi-polar plane to emit light directed to ends of the nanocolumns and an interstitial filler material with light emitted in the nanocolumns being guided to exit from an end of the nanocolumns.

Abstract: The array of gallium-nitride (GaN) nanocolumns have quantum wells in a polar c-plane or in a semi-polar plane to emit light directed to ends of the nanocolumns and an interstitial filler material with light emitted in the nanocolumns being guided to exit from an end of the nanocolumns.

Abstract: The array of gallium-nitride (GaN) nanocolumns have quantum wells in a polar c-plane or in a semi-polar plane to emit light directed to ends of the nanocolumns and an interstitial filler material with light emitted in the nanocolumns being guided to exit from an end of the nanocolumns.

Abstract: This disclosure pertains to a testing method for a target pathogen. The method uses biosensors with particular fluorescence characteristics, such that when the biosensor binds to a target pathogen, a fluorophore may emit light if excited. The biosensor may be an aptamer-based biosensor with a fluorophore reporter and a quencher. The excitation of the fluorophore and the detection of fluorescence may be made through the use of a flashlight source and a camera from a mobile device, such as a smartphone.

Abstract: This disclosure pertains to a testing method for a target pathogen. The method uses biosensors with particular fluorescence characteristics, such that when the biosensor binds to a target pathogen, a fluorophore may emit light if excited. The biosensor may be an aptamer-based biosensor with a fluorophore reporter and a quencher. The excitation of the fluorophore and the detection of fluorescence may be made through the use of a flashlight source and a camera from a mobile device, such as a smartphone.

Abstract: A controllable current driver integrated circuit is provided. The controllable current driver includes a multitude of different current value output transistors digitally controlled and combined to provide a controllable current output. The different current value transistors are each provided as single lithographic devices on a same substrate in proximity to each other having weighted drain and source areas corresponding to the different current values. The weighted drivers reduce the implementation area required on the semiconductor die for decoding and driving the output transistors substantially increasing the density of current drivers which can be integrated in one semiconductor die.

Abstract: Methods and apparatus are provided to fabricate massive monolithic arrays of individually addressable light emitting diodes, assemble a plurality of such massive monolithic arrays of individually addressable light emitting diodes, control each individual light emitting diode, and to assemble the same in manner to achieve the accuracy and stability for a massive number of individually controlled light emitting diodes that can then be focused using projection optics on to a photoreceptive surface. In addition methods and apparatus are provided to move the imaging system thus described relative to the photoreceptive surface in two axes orthogonal to each other thus exposing the photoreceptive surface.

Abstract: A controllable current driver integrated circuit is provided. The controllable current driver includes a multitude of different current value output transistors digitally controlled and combined to provide a controllable current output. The different current value transistors are each provided as single lithographic devices on a same substrate in proximity to each other having weighted drain and source areas corresponding to the different current values. The weighted drivers reduce the implementation area required on the semiconductor die for decoding and driving the output transistors substantially increasing the density of current drivers which can be integrated in one semiconductor die.

Abstract: The method disclosed provides communication over short distances at high speed via fiber optics making it practical to replace standard copper conductors with optical fiber. This is a solution to the “last mile” problem in Internet high speed communications.

Abstract: The method disclosed provides communication over short distances at high speed via fiber optics making it practical to replace standard copper conductors with optical fiber. This is a solution to the “last mile” problem in Internet high speed communications.

Abstract: Methods and apparatus are provided to fabricate massive monolithic arrays of individually addressable light emitting diodes, assemble a plurality of such massive monolithic arrays of individually addressable light emitting diodes, control each individual light emitting diode, and to assemble the same in manner to achieve the accuracy and stability for a massive number of individually controlled light emitting diodes that can then be focused using projection optics on to a photoreceptive surface. In addition methods and apparatus are provided to move the imaging system thus described relative to the photoreceptive surface in two axes orthogonal to each other thus exposing the photoreceptive surface.

Abstract: A novel method and apparatus is presented wherein an output of infra-red solid state laser or multiple of such lasers is quadrupled in frequency to obtain a laser output that emits energy in ultra violet C spectrum, and wherein this energy is then provided within an air duct as is normal in HVAC systems so as it kill pathogens that are airborne and being carried through the conduit. Further such a method reduces production of ozone, detrimental to human health and produced in other means of generating UVC and provides ease of control of such energy so as to maintain the required energy at a steady level for prolonged period of time.

Abstract: A novel method and apparatus is presented wherein an output of infra-red solid state laser or multiple of such lasers is quadrupled in frequency to obtain a laser output that emits energy in ultra violet C spectrum, and wherein this energy is then provided within an air duct as is normal in HVAC systems so as it kill pathogens that are airborne and being carried through the conduit. Further such a method reduces production of ozone, detrimental to human health and produced in other means of generating UVC and provides ease of control of such energy so as to maintain the required energy at a steady level for prolonged period of time.

Abstract: A novel method and apparatus is presented wherein an output of infra-red solid state laser or multiple of such lasers is quadrupled in frequency to obtain a laser output that emits energy in ultra violet C spectrum, and wherein this energy is then provided within an air duct as is normal in HVAC systems so as it kill pathogens that are airborne and being carried through the conduit. Further such a method reduces production of ozone, detrimental to human health and produced in other means of generating UVC and provides ease of control of such energy so as to maintain the required energy at a steady level for prolonged period of time.