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公开(公告)号：US10031026B2
公开(公告)日：2018-07-24
申请号：US15498233
申请日：2017-04-26
Applicant: POLARIS SENSOR TECHNOLOGIES, INC.
Inventor： J Larry Pezzaniti
Abstract: A short wave infrared polarimeter comprising a pixelated polarizer array and an Indium-Gallium-Arsenide (“InGaAs”) focal plane array. The short wave infrared polarimeter optionally includes a micro-lens array and/or an aperture layer.
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公开(公告)号：US09903805B2
公开(公告)日：2018-02-27
申请号：US15647106
申请日：2017-07-11
Applicant: Theodore Peter Rakitzis
Inventor： Theodore Peter Rakitzis
CPC classification number: G01N21/19 , G01J4/02 , G01J4/04 , G01J2004/001 , G01N21/21 , G01N2201/06113 , G01N2201/0636 , G01N2201/067
Abstract: A polarimeter for measuring chirality of a material comprising an optical ring cavity comprising a plurality of reflective elements configured to promote bi-directional propagation of a laser beam within the cavity, a laser-emitting device configured to introduce a first input beam and a second input beam into the cavity, a Faraday rotator, a phase compensator, an acousto-optic modulator configured to shift the frequency of the first output beam, an optical recombination device configured to recombine shifted and unshifted output beams, and first and second detectors configured to receive the recombined beams, wherein the plurality of reflective elements, Faraday rotator, and phase compensator are configured such that light from the first and second input beams passes through a chiral material located within the cavity a sufficient number of times for a measurement of optical rotary dispersion and circular dichroism of light transmitted through the material to be obtained at the detectors.
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公开(公告)号：US09784622B2
公开(公告)日：2017-10-10
申请号：US15426364
申请日：2017-02-07
Inventor： David H. Hughes , Reinhard Erdmann
CPC classification number: G01J4/02 , G01J4/04 , G02B5/3083 , G02B27/283 , G02B27/286 , G02B27/288 , G02B2207/114
Abstract: A photon entanglement router comprises a modified birefringent spectral filter followed by a polarization beam splitter (PBS). Frequency degenerate or non-degenerate entangled photons, generated by a collinear laser source and incident on one input port of the photon entanglement router, are comprised of congruent photons and/or incongruent photons. The invention adds a plurality of additional filter stacks at each output port such that they invert the action of the first birefringent stack at the input port. Intermediate output photons from the invention is input to two ports of an additional PBS where they are spatially projected according to their frequencies and polarizations. Two congruent photons of an entangled photon pair exit as an entangled pair in one direction, while two incongruent photons exit as an entangled pair in the orthogonal direction. If one photon is congruent and the other photon incongruent, the photons remain entangled but are spectrally divided into orthogonal directions. The invention's birefringent spectral filter accepts specific input frequencies from the ITU optical C-band grid for proper operation.
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公开(公告)号：US09651426B2
公开(公告)日：2017-05-16
申请号：US14788534
申请日：2015-06-30
Applicant: Agilent Technologies, Inc.
Inventor： Adam Kleczewski , Richard P Tella , Dower Cameron Bricker , Yang Han
CPC classification number: G01J4/02 , G01N2021/217 , G01N2021/556 , G02B5/3058 , G02B26/00 , G02B27/286 , G02F1/0136 , H01S5/005 , H01S5/0071 , H01S5/3401 , H01S5/3402 , H01S5/4012 , H01S5/4075
Abstract: A light source having first and second wire-grid polarizers and a laser that emits a beam of linearly polarized light that is characterized by a propagation direction is disclosed. The first wire-grid polarization filter is characterized by a first linear polarization pass direction and a first actuator for causing the first linear polarization pass direction to rotate relative to the beam of linearly polarized light. The second wire-grid polarization filter is characterized by a second linear polarization pass direction and a second actuator for causing the second linear polarization pass direction to rotate relative to the beam of linearly polarized light. A controller sets the first and second linear polarization pass directions to provide linearly polarized light having a specified polarization direction.
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公开(公告)号：US20170003170A1
公开(公告)日：2017-01-05
申请号：US14788534
申请日：2015-06-30
Applicant: Agilent Technologies, Inc.
Inventor： Adam Kleczewski , Richard P. Tella , Dower Cameron Bricker , Yang Han
CPC classification number: G01J4/02 , G01N2021/217 , G01N2021/556 , G02B5/3058 , G02B26/00 , G02B27/286 , G02F1/0136 , H01S5/005 , H01S5/0071 , H01S5/3401 , H01S5/3402 , H01S5/4012 , H01S5/4075
Abstract: A light source having first and second wire-grid polarizers and a laser that emits a beam of linearly polarized light that is characterized by a propagation direction is disclosed. The first wire-grid polarization filter is characterized by a first linear polarization pass direction and a first actuator for causing the first linear polarization pass direction to rotate relative to the beam of linearly polarized light. The second wire-grid polarization filter is characterized by a second linear polarization pass direction and a second actuator for causing the second linear polarization pass direction to rotate relative to the beam of linearly polarized light. A controller sets the first and second linear polarization pass directions to provide linearly polarized light having a specified polarization direction.
Abstract translation: 公开了一种具有第一和第二线栅偏振器的光源和发射以传播方向为特征的线偏振光束的激光器。 第一线栅偏振滤光器的特征在于第一线性偏振光通过方向和第一致动器，用于使第一线偏振光通过方向相对于线偏振光束旋转。 第二线栅偏振滤光器的特征在于第二线偏振光通过方向，第二致动器用于使第二线偏振光通过方向相对于线偏振光束旋转。 A控制器设置第一和第二线性偏振通过方向以提供具有指定偏振方向的线偏振光。
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Patent Agency Ranking
公开(公告)号：US09354118B2
公开(公告)日：2016-05-31
申请号：US14173994
申请日：2014-02-06
Applicant: Film Sense, LLC
Inventor： Blaine D. Johs , Bruce A. Hadwiger
CPC classification number: G01J4/02 , G01N21/211 , G01N2021/213 , G01N2021/215 , G01N2021/216
Abstract: A multiple wavelength ellipsometer system for use in thin film characterization is disclosed. The light source for the system may include sequentially scanned multiple light emitting diodes or laser diodes. The polarization state detector may comprise no moving parts, and utilizes economical uncoated glass plates as beam splitters. The system compensates for potential measurement errors induced by misalignment of the input beam angle to the polarization state detector via a paired arrangement of the beam splitters. To provide improved accuracy in the analysis of data acquired by the system, methods herein actively compensate for the relatively large bandwidth of a preferable light emitting diode source.
Abstract translation: 公开了用于薄膜表征的多波长椭偏仪系统。 该系统的光源可以包括顺序扫描的多个发光二极管或激光二极管。 偏振状态检测器可以不包括移动部件，并且使用经济的未涂覆玻璃板作为分束器。 该系统通过分束器的配对布置来补偿由输入光束角与偏振状态检测器的未对准而引起的潜在测量误差。 为了提供对由系统获取的数据的分析的改进的精度，本文中的方法主动地补偿优选的发光二极管源的相对大的带宽。
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公开(公告)号：US20150219497A1
公开(公告)日：2015-08-06
申请号：US14173994
申请日：2014-02-06
Applicant: Film Sense, LLC
Inventor： Blaine D. Johs , Bruce A. Hadwiger
IPC: G01J4/02
CPC classification number: G01J4/02 , G01N21/211 , G01N2021/213 , G01N2021/215 , G01N2021/216
Abstract: A multiple wavelength ellipsometer system for use in thin film characterization is disclosed. The light source for the system may include sequentially scanned multiple light emitting diodes or laser diodes. The polarization state detector may comprise no moving parts, and utilizes economical uncoated glass plates as beam splitters. The system compensates for potential measurement errors induced by misalignment of the input beam angle to the polarization state detector via a paired arrangement of the beam splitters. To provide improved accuracy in the analysis of data acquired by the system, methods herein actively compensate for the relatively large bandwidth of a preferable light emitting diode source.
Abstract translation: 公开了用于薄膜表征的多波长椭偏仪系统。 该系统的光源可以包括顺序扫描的多个发光二极管或激光二极管。 偏振状态检测器可以不包括移动部件，并且使用经济的未涂覆的玻璃板作为分束器。 该系统通过分束器的配对布置补偿由输入光束角与偏振状态检测器的未对准而引起的潜在测量误差。 为了提供对由系统获取的数据的分析的改进的精度，本文中的方法主动地补偿优选的发光二极管源的相对大的带宽。
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58.发明申请Circular Birefringence Refractometer: Method And Apparatus For Measuring Optical Activity 有权圆形双折射折射仪：用于测量光学活性的方法和装置公开(公告)号：US20100231911A1
公开(公告)日：2010-09-16
申请号：US12305840
申请日：2007-06-27
Applicant: Peer Fischer , Ambarish Ghosh
Inventor： Peer Fischer , Ambarish Ghosh
IPC: G01J4/02
Abstract: A system and method for detection and measurement of circular birefringences in materials, such as optically active (chiral) liquids and materials that exhibit the Faraday effect. The method and apparatus permit the detection of optical activities via the difference in the directions of propagation the left- and the right-circularly polarized light (components). A beam of light is directed at an interface formed by the optically active medium and another medium such that a difference in the angles of refraction and/or reflection and/or diffraction between the left- and the right-circularly polarized components of the light beam can be detected. The difference in the propagation directions between the two circularly polarized light components is measured on a position sensitive detector and/or is detected as an intensity difference. The circular birefringence in isotropic liquids is a measure of their optical purity (enantiomeric excess) and hence the invention presents a method and apparatus to measure chirality. The invention is thus related to optical rotation (polarimetric) measurements, but has the advantage that it does not depend on path-length traversed through the sample.
Abstract translation: 用于检测和测量材料中的圆形双折射的系统和方法，例如表现出法拉第效应的光学活性（手性）液体和材料。 该方法和装置允许通过左右右偏振光（分量）的传播方向的差异来检测光学活动。 光束被引导到由光学活性介质和另一介质形成的界面，使得光束的左和右圆偏振分量之间的折射角和/或反射和/或衍射的差异 可以检测。 在位置敏感检测器上测量两个圆偏振光分量之间的传播方向的差异和/或被检测为强度差。 各向同性液体中的圆形双折射是它们的光学纯度（对映体过量）的量度，因此本发明提出了一种测量手性的方法和装置。 因此，本发明涉及光学旋转（偏振）测量，但其优点在于它不依赖于穿过样品的路径长度。
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公开(公告)号：US5790259A
公开(公告)日：1998-08-04
申请号：US628257
申请日：1996-04-05
Applicant: Shinji Mizuhata , Hayami Hosokawa , Arata Nakamura , Nobuharu Ishikawa , Hiroyuki Inoue , Satoru Shimokawa , Masahiro Kurokawa , Kohei Tomita , Norimasa Yamanaka
Inventor： Shinji Mizuhata , Hayami Hosokawa , Arata Nakamura , Nobuharu Ishikawa , Hiroyuki Inoue , Satoru Shimokawa , Masahiro Kurokawa , Kohei Tomita , Norimasa Yamanaka
Abstract: Each of a detection sample object and a non-detection sample object is illuminated with S-polarization light, for instance. S-polarization light and P-polarization light reflected from each sample object are detected by different photodetecting elements. Glossiness values and light quantities of the detection and non-detection sample objects are judged based on detection outputs of the photodetecting elements, and a glossiness difference and a light quantity difference are calculated. An evaluation function having at least one of the glossiness and the light quantity as a variable is determined by using the glossiness difference and the light quantity difference. Thresholds for object discrimination are calculated based on evaluation function values of the detection and non-detection sample objects.
Abstract translation: 例如，以S偏振光照射检测样本物体和非检测样本物体中的每一个。 通过不同的光检测元件检测从每个样本物体反射的S偏振光和P偏振光。 基于受光元件的检测输出来判断检测和非检测样本物体的光泽度值和光量，并且计算光泽度差和光量差。 通过使用光泽度差和光量差来确定具有光泽度和光量中的至少一个作为变量的评价函数。 基于检测和非检测样本对象的评估函数值计算对象辨别阈值。
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60.发明授权Portable optical fluid debris detector including cover and calibrating magnet 失效便携式光学流体碎片检测器，包括盖子和校准磁铁
公开(公告)号：US5675249A
公开(公告)日：1997-10-07
申请号：US209575
申请日：1994-03-10
Applicant: Robert Downing LaClair
Inventor： Robert Downing LaClair
CPC classification number: G01N33/2858 , G01N1/34 , G01N15/0656
Abstract: Apparatus for detecting ferromagnetic debris in a fluid medium in a container includes a plug attachable to the container and having an associated magnetic field preferably produced by a permanent magnet. The plug is at least partly exposed to the fluid to capture debris in the fluid. The apparatus further includes a portable sensor for optically sensing the captured debris, with the sensor having a probe that is connectable to the plug. A method for using such apparatus is provided, and in general a method of detecting ferromagnetic particles in a fluid medium in a container includes the steps of: a) magnetically capturing particles from the fluid using a plug with the container, and b) interrogating the plug with light for captured particles using a portable probe.
Abstract translation: 用于检测容器中的流体介质中的铁磁碎片的装置包括可附接到容器并具有优选由永磁体产生的相关磁场的插头。 塞子至少部分地暴露于流体以捕获流体中的碎屑。 该装置还包括用于光学感测所捕获的碎片的便携式传感器，其中传感器具有可连接到插头的探针。 提供了一种使用这种装置的方法，通常一种在容器中的流体介质中检测铁磁性颗粒的方法包括以下步骤：a）使用具有容器的塞子从流体磁性捕获颗粒，以及b）询问 使用便携式探头插入捕获的颗粒的光。
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