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公开(公告)号：US20220271489A1
公开(公告)日：2022-08-25
申请号：US17677888
申请日：2022-02-22
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov , David S. Alavi
Abstract: A ring optical resonator and one or more input optical waveguides are arranged on a substrate, and are arranged and positioned to establish evanescent optical coupling between them. The ring optical resonator, the substrate, or both include one or more nonlinear optical materials. To detect an electromagnetic signal at frequency νEM incident on the resonator, an input optical signal at frequency νIN propagates along the waveguide and around the resonator. The incident electromagnetic signal and the input optical signal generate one or more sideband optical signals at corresponding optical sideband frequencies νSF=νIN+νEM or νDF=νIN−νEM. To generate an electromagnetic signal to propagate away from the resonator, input optical signals at frequencies νIN1 and νIN2 propagate along one or more waveguides and around the resonator and generate the electromagnetic signal incident at frequency νEM=|νIN1−νIN2|.
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公开(公告)号：US11262639B2
公开(公告)日：2022-03-01
申请号：US17221763
申请日：2021-04-02
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov
IPC: G02F1/35 , G02F1/225 , H04B10/2507
Abstract: A linearly polarized upconverting optical signal at optical frequency νOPT and a propagating input signal at frequency νGHz are combined by an input beam combiner to copropagate through a nonlinear optical medium and generate upconverted optical signals at one or both sum or difference frequencies νSUM=νOPT+νGHz or νDIFF=νOPT−νGHz. The orthogonally polarized upconverting and upconverted optical signals are separated by a polarizer, and the upconverted optical signal is preferentially transmitted to a detection system by an optical filter. The input signal is modulated to encode transmitted information, and that modulation is imparted onto the upconverted optical signal. The detection system includes one or more photodetectors, receives the upconverted optical signal, and generates therefrom electrical signals that are modulated to encode the transmitted information.
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3.发明申请Systems and methods for high-contrast, near-real-time acquisition of terahertz images 有权用于高对比度，近实时采集太赫兹图像的系统和方法公开(公告)号：US20150153234A1
公开(公告)日：2015-06-04
申请号：US14561141
申请日：2014-12-04
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov , Patrick F. Tekavec
CPC classification number: G01J5/0806 , G01J5/0803 , G01J5/0815 , G01J5/20 , G01J9/00 , G01J2005/0077 , G01N21/3581 , G01N21/636 , G01V8/005 , G02B5/208 , G02F1/3532 , G02F1/3534 , G02F1/3544 , G02F2001/3503 , G02F2001/3548 , G02F2203/13
Abstract: A terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR upconverting beam). The upconverted image is acquired by a near IR image detector. The terahertz image beam and upconverting beam comprise trains of picosecond pulses. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
Abstract translation: 太赫兹图像波束通过非线性光学过程（例如，具有近IR上变频波束的和频或差频产生）上变频。 上变换的图像由近红外图像检测器获取。 太赫兹图像波束和上变频波束包括皮秒脉冲序列。 太赫兹图像束和上变频束的带宽和中心波长使得可以采用波长滤波来允许上变换的图像光束到达检测器，同时阻挡或基本衰减上变频束。
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公开(公告)号：US20210311371A1
公开(公告)日：2021-10-07
申请号：US17221763
申请日：2021-04-02
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov
IPC: G02F1/35 , H04B10/2507 , G02F1/225
Abstract: A linearly polarized upconverting optical signal at optical frequency νOPT and a propagating input signal at frequency νGHz are combined by an input beam combiner to copropagate through a nonlinear optical medium and generate upconverted optical signals at one or both sum or difference frequencies νSUM=νOPT+νGHz or νDIFF=νOPT−νGHz. The orthogonally polarized upconverting and upconverted optical signals are separated by a polarizer, and the upconverted optical signal is preferentially transmitted to a detection system by an optical filter. The input signal is modulated to encode transmitted information, and that modulation is imparted onto the upconverted optical signal. The detection system includes one or more photodetectors, receives the upconverted optical signal, and generates therefrom electrical signals that are modulated to encode the transmitted information.
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5.发明授权Systems and methods for high-contrast, near-real-time acquisition of terahertz images 有权用于高对比度，近实时采集太赫兹图像的系统和方法公开(公告)号：US09574944B1
公开(公告)日：2017-02-21
申请号：US15173504
申请日：2016-06-03
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov , Patrick F. Tekavec
IPC: G01J5/08
CPC classification number: G01J5/0806 , G01J5/0803 , G01J5/0815 , G01J5/20 , G01J9/00 , G01J2005/0077 , G01N21/3581 , G01N21/636 , G01V8/005 , G02B5/208 , G02F1/3532 , G02F1/3534 , G02F1/3544 , G02F2001/3503 , G02F2001/3548 , G02F2203/13
Abstract: A cw terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR cw upconverting beam). The upconverted image is acquired by a near IR image detector. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
Abstract translation: cw太赫兹图像波束通过非线性光学过程（例如，具有近IR cw上变频波束的和/或差频产生）上变频。 上变换的图像由近红外图像检测器获取。 太赫兹图像束和上变频束的带宽和中心波长使得可以采用波长滤波来允许上变换的图像光束到达检测器，同时阻挡或基本衰减上变频束。
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Patent Agency Ranking
公开(公告)号：US11594851B2
公开(公告)日：2023-02-28
申请号：US17677888
申请日：2022-02-22
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov , David S. Alavi
Abstract: A ring optical resonator and one or more input optical waveguides are arranged on a substrate, and are arranged and positioned to establish evanescent optical coupling between them. The ring optical resonator, the substrate, or both include one or more nonlinear optical materials. To detect an electromagnetic signal at frequency νEM incident on the resonator, an input optical signal at frequency νIN propagates along the waveguide and around the resonator. The incident electromagnetic signal and the input optical signal generate one or more sideband optical signals at corresponding optical sideband frequencies νSF=νIN+νEM or νDF=νIN−νEM. To generate an electromagnetic signal to propagate away from the resonator, input optical signals at frequencies νIN1 and νIN2 propagate along one or more waveguides and around the resonator and generate the electromagnetic signal incident at frequency νEM=|νIN1−νIN2|.
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公开(公告)号：US10139701B2
公开(公告)日：2018-11-27
申请号：US15364212
申请日：2016-11-29
Applicant: Microtech Instruments, Inc.
Inventor： Patrick F. Tekavec , Vladimir G. Kozlov
Abstract: An optical parameter oscillator (OPO) is pumped at pump wavelength λP to resonate at signal wavelength λS. The OPO produces idler radiation at terahertz frequencies νTHz=c/λP−c/λS. The pump, signal, and idler radiation are substantially collinear.
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公开(公告)号：US09377362B2
公开(公告)日：2016-06-28
申请号：US14561141
申请日：2014-12-04
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov , Patrick F. Tekavec
CPC classification number: G01J5/0806 , G01J5/0803 , G01J5/0815 , G01J5/20 , G01J9/00 , G01J2005/0077 , G01N21/3581 , G01N21/636 , G01V8/005 , G02B5/208 , G02F1/3532 , G02F1/3534 , G02F1/3544 , G02F2001/3503 , G02F2001/3548 , G02F2203/13
Abstract: A terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR upconverting beam). The upconverted image is acquired by a near IR image detector. The terahertz image beam and upconverting beam comprise trains of picosecond pulses. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
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公开(公告)号：US20180101085A1
公开(公告)日：2018-04-12
申请号：US15364212
申请日：2016-11-29
Applicant: Microtech Instruments, Inc.
Inventor： Patrick F. Tekavec , Vladimir G. Kozlov
CPC classification number: G02F1/3532 , G02F1/39
Abstract: An optical parameter oscillator (OPO) is pumped at pump wavelength λP to resonate at signal wavelength λS. The OPO produces idler radiation at terahertz frequencies νTHz=c/λP−c/λS. The pump, signal, and idler radiation are substantially collinear.
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公开(公告)号：US20170067783A1
公开(公告)日：2017-03-09
申请号：US15173504
申请日：2016-06-03
Applicant: Microtech Instruments, Inc.
Inventor： Vladimir G. Kozlov , Patrick F. Tekavec
CPC classification number: G01J5/0806 , G01J5/0803 , G01J5/0815 , G01J5/20 , G01J9/00 , G01J2005/0077 , G01N21/3581 , G01N21/636 , G01V8/005 , G02B5/208 , G02F1/3532 , G02F1/3534 , G02F1/3544 , G02F2001/3503 , G02F2001/3548 , G02F2203/13
Abstract: A cw terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR cw upconverting beam). The upconverted image is acquired by a near IR image detector. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
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