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1. 发明申请

WO2020159596A3 NANOSCALE RESOLUTION, SPATIALLY-CONTROLLED CONDUCTIVITY MODULATION OF DIELECTRIC MATERIALS USING A FOCUSED ION BEAM 审中-公开
公开(公告)号：WO2020159596A3
公开(公告)日：2020-08-06
申请号：PCT/US2019/060183
申请日：2019-11-07
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman , BIANCONI, Simone
IPC分类号： H01L21/683 , H01L25/075 , H01L25/16
摘要： Methods for creating a conductive feature in a dielectric material are provided. In an embodiment, such a method comprises irradiating a region of a dielectric material having a resistivity of at least 10 8 W cm with a focused ion beam, the irradiated region corresponding to a conductive feature embedded in the dielectric material, the conductive feature having a conductivity greater than that of the dielectric material; and forming one or more contact pads of a conductive material in electrical communication with the conductive feature, the one or more contact pads configured to apply a voltage across the conductive feature using a voltage source.

2. 发明申请

WO2019226261A3 METHOD AND SYSTEM FOR MULTISPECTRAL IMAGING 审中-公开
公开(公告)号：WO2019226261A3
公开(公告)日：2019-11-28
申请号：PCT/US2019/028692
申请日：2019-04-23
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman , NIA, Iman Hassani , WHEATON, Skylar
IPC分类号： H04N5/33 , G01J3/36
摘要： A multispectral imaging apparatus includes a processor and a plurality of sets of light-emitting diodes (LEDs) in communication with the processor. One or more first sets of LEDs has a wavelength in a visible range, and one or more second sets of LEDs has a wavelength in a short wavelength infrared range. The apparatus includes a truncated source cone through which light from the plurality of sets of LEDs is directed onto a surface and through which light reflected off of the surface is received. The apparatus also includes a visible light camera configured to capture a first image of the surface based on reflected light that originates from the one or more first sets of LEDS. The apparatus further includes an infrared light camera and configured to capture a second image of the surface based on reflected light that originates from the one or more second sets of LEDs.

3. 发明申请

WO2019226261A2 METHOD AND SYSTEM FOR MULTISPECTRAL IMAGING 审中-公开
公开(公告)号：WO2019226261A2
公开(公告)日：2019-11-28
申请号：PCT/US2019/028692
申请日：2019-04-23
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman , NIA, Iman Hassani , WHEATON, Skylar
IPC分类号： G16H30/00
摘要： A multispectral imaging apparatus includes a processor and a plurality of sets of light-emitting diodes (LEDs) in communication with the processor. One or more first sets of LEDs has a wavelength in a visible range, and one or more second sets of LEDs has a wavelength in a short wavelength infrared range. The apparatus includes a truncated source cone through which light from the plurality of sets of LEDs is directed onto a surface and through which light reflected off of the surface is received. The apparatus also includes a visible light camera configured to capture a first image of the surface based on reflected light that originates from the one or more first sets of LEDS. The apparatus further includes an infrared light camera and configured to capture a second image of the surface based on reflected light that originates from the one or more second sets of LEDs.

4. 发明申请

WO2014151655A1 SYSTEMS, APPARATUSES AND METHODS FOR CONVERTING LIGHT WAVELENGTHS 审中-公开
标题翻译：用于转换光波长的系统，装置和方法
公开(公告)号：WO2014151655A1
公开(公告)日：2014-09-25
申请号：PCT/US2014/026180
申请日：2014-03-13
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman
IPC分类号： G09G5/10
CPC分类号： H01L27/32 , H01L25/167 , H01L27/3227 , H01L31/055 , H01L51/422 , H01L2924/0002 , Y02E10/52 , H01L2924/00
摘要： In one aspect, an apparatus for converting light having a first wavelength to a light having a second wavelength is provided. The apparatus includes an interband light detector configured to detect light with the first wavelength, a light emitting device configured to emit light with the second wavelength, and a connector connecting the light detector to the light emitting device. In another aspect, an apparatus includes an absorber layer configured to absorb light having a first wavelength, a barrier and trap layer adjacent the absorber layer, an injector layer adjacent the barrier and trap layer, and an emitting device configured to emit light having a second wavelength. In a further aspect, a method is provided and includes absorbing an input light having a first wavelength, converting the first wavelength to a second wavelength different in size than the first wavelength, and emitting an output light having the second wavelength.
摘要翻译：一方面，提供一种用于将具有第一波长的光转换成具有第二波长的光的装置。该装置包括配置成检测具有第一波长的光的带间光检测器，配置成发射具有第二波长的光的发光器件，以及将光检测器连接到发光器件的连接器。在另一方面，一种装置包括：吸收层，被配置为吸收具有第一波长的光，邻近吸收层的阻挡层和捕获层，与阻挡层和捕获层相邻的注入层;以及发射器件，被配置为发射具有第二波长波长。另一方面，提供了一种方法，包括吸收具有第一波长的输入光，将第一波长转换成尺寸不同于第一波长的第二波长，以及发射具有第二波长的输出光。

5. 发明申请

WO2007038600A2 A SINGLE-PHOTON DETECTOR AND APPLICATIONS OF SAME 审中-公开
标题翻译：单光子探测器及其应用
公开(公告)号：WO2007038600A2
公开(公告)日：2007-04-05
申请号：PCT/US2006/037679
申请日：2006-09-27
申请人： NORTHWESTERN UNIVERSITY , MOHSENI, Hooman
发明人： MOHSENI, Hooman
IPC分类号： H01L29/732
CPC分类号： H01L27/14643
摘要： A semiconductor photodetector for photon detection without the use of avalanche multiplication, and capable of operating at low bias voltage and without excess noise. In one embodiment, the photodetector comprises a plurality of InP/ AlInGa As/ AlGa As Sb layers, capable of spatially separating the electron and the hole of an photo-generated electron-hole pair in one layer, transporting one of the electron and the hole of the photo- generated electron-hole pair into another layer, focalizing it into a desired volume and trapping it therein, the desired volume having a dimension in a scale of nanometers to reduce its capacitance and increase the change of potential for a trapped carrier, and a nano-inj ector, capable of inj ecting carriers into the plurality of InP/ AlInGaAs/ AlGaAsSb layers, where the carrier transit time in the nano-inj ector is much shorter than the carrier recombination time therein, thereby causing a very large carrier recycling effect.
摘要翻译：用于光子检测的半导体光电探测器不使用雪崩倍增，并且能够在低偏置电压下工作并且没有过量噪声。在一个实施例中，光电探测器包括多个InP / AlInGaAs / AlGaAsAsSb层，其能够在空间上分离一层中的光生电子空穴对的电子和空穴，将电子和空穴中的一个将光生电子 - 空穴对转换成另一层，将其聚焦成所需体积并将其俘获在其中，所需体积具有纳米尺度的尺寸以降低其电容并增加捕获载体的电位变化，以及能够将载流子注入到多个InP / AlInGaAs / AlGaAsSb层中的纳米注入器，其中纳米注入器中的载流子传输时间比其中的载流子再结合时间短得多，由此导致非常大的载流子回收效果。

6. 发明申请

WO2022197379A2 WAVELENGTH CONVERTING NATURAL VISION SYSTEM 审中-公开
公开(公告)号：WO2022197379A2
公开(公告)日：2022-09-22
申请号：PCT/US2022/014651
申请日：2022-02-01
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman
IPC分类号： H01L33/50 , H01L27/146 , G06V10/143 , G02B27/09 , G02F1/01 , G02F2/008
摘要： A wavelength converter includes a first optical layer, a second optical layer, and a pixel array positioned between the first optical layer and the second optical layer. A pixel in the pixel array includes a first device to convert incident invisible light to an electrical signal and a second device that converts the electrical signal into visible light.

7. 发明申请

WO2020159596A2 NANOSCALE RESOLUTION, SPATIALLY-CONTROLLED CONDUCTIVITY MODULATION OF DIELECTRIC MATERIALS USING A FOCUSED ION BEAM 审中-公开
公开(公告)号：WO2020159596A2
公开(公告)日：2020-08-06
申请号：PCT/US2019/060183
申请日：2019-11-07
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman , BIANCONI, Simone
IPC分类号： H01L21/42
摘要： Methods for creating a conductive feature in a dielectric material are provided. In an embodiment, such a method comprises irradiating a region of a dielectric material having a resistivity of at least 10 8 W cm with a focused ion beam, the irradiated region corresponding to a conductive feature embedded in the dielectric material, the conductive feature having a conductivity greater than that of the dielectric material; and forming one or more contact pads of a conductive material in electrical communication with the conductive feature, the one or more contact pads configured to apply a voltage across the conductive feature using a voltage source.

8. 发明申请

WO2020069121A1 SPACE-TIME SCATTERING NETWORK FOR INVERSE DESIGN AND TOMOGRAPHY 审中-公开
公开(公告)号：WO2020069121A1
公开(公告)日：2020-04-02
申请号：PCT/US2019/053143
申请日：2019-09-26
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman , HAMILTON, Travis G.
IPC分类号： G06T15/00 , G01R33/56 , G01R33/54
摘要： A system to generate a space-time scattering network includes a computing unit configured to store a space-time scattering network (STSN) algorithm. The computing unit also executes the STSN algorithm to represent scattering of light through a material mathematically as a tensor field at a location. The computing unit also generates a subnet that represents the tensor field at the location. The computing unit also identifies, based on a translation operator, connections between a plurality of subnets, where each of the subnets in the plurality of subnets represents a given tensor field at a given location. The computing unit also forms the STSN based at least in part on the identified connections between the plurality of subnets. The computing unit further uses the STSN to inversely design an optical component or to perform tomography.

9. 发明申请

WO2018222282A3 SYSTEMS FOR COHERENT LIGHT DETECTION AND RELATED METHODS 审中-公开
公开(公告)号：WO2018222282A3
公开(公告)日：2018-12-06
申请号：PCT/US2018/027572
申请日：2018-04-13
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman , FATHIPOUR, Vala
IPC分类号： H01L31/04
摘要： Systems for coherent light detection are provided, including a system comprising a light source configured to generate light; a first optical assembly configured to split the light into a reference arm and a sample arm; a second optical assembly configured to illuminate a sample with light of the sample arm, thereby generating a sample signal; a third optical assembly configured to combine the sample signal with light of the reference arm, thereby generating an interference signal; and a detector assembly comprising an array of carrier injection photodetectors, the array arranged to collect the interference signal. Methods of using the systems are also provided.

10. 发明申请

WO2020055718A1 METHODS AND SYSTEMS FOR EFFICIENT COUPLING OF LIGHT FROM OUTSIDE TISSUE TO SMALL VOLUMES INSIDE TISSUE 审中-公开
公开(公告)号：WO2020055718A1
公开(公告)日：2020-03-19
申请号：PCT/US2019/050150
申请日：2019-09-09
申请人： NORTHWESTERN UNIVERSITY
发明人： MOHSENI, Hooman
IPC分类号： A61B1/00 , A61N5/06 , G01N21/00 , G02F1/017
摘要： A system to couple light to tissue includes a first light source configured to emit first light of a first wavelength lambdaλ 1 and a second light source configured to emit second light of a second wavelength λ 2 . The system also includes a retro-modulator configured to receive the first light and the second light. The retro-modulator is configured to modulate the first light of the first wavelength λ 1 based at least in part on an intensity of the second light of the second wavelength λ 2 . The retro-modulator is also configured to reflect the modulated first light for use in generation of a guide-star within the tissue.

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