公开(公告)号：US20150116713A1

公开(公告)日：2015-04-30

申请号：US14523171

申请日：2014-10-24

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev ,  Vitor Marino Schneider

IPC: G01J4/02 ,  G02B5/06 ,  G02B5/04

CPC classification number: G01J4/02 ,  G01J2004/005 ,  G01N21/23 ,  G01N21/43 ,  G01N2021/4126 ,  G01N2021/434 ,  G02B5/04 ,  G02B5/06 ,  G02B6/34

Abstract: Apparatus and methods for measuring mode spectra for ion-exchanged glass substrates having a steep index region are disclosed. An interfacing fluid is provided between the coupling prism and the glass substrate. The interfacing fluid thickness is selected so that the variation in modal birefringence with fluid thickness is reduced to an acceptable level. The coupling prism can include a prism coating on the coupling surface so that the substrate-prism interface includes the prism coating. The coupling prism can also include stand-off members that serve to define the thickness of the interfacing fluid.

Abstract translation: 公开了用于测量具有陡峭折射率区域的离子交换玻璃基板的模式光谱的装置和方法。 在耦合棱镜和玻璃基板之间提供界面流体。 选择界面流体厚度，使得具有流体厚度的模态双折射的变化减小到可接受的水平。 耦合棱镜可以包括在耦合表面上的棱镜涂层，使得基板 - 棱镜界面包括棱镜涂层。 连接棱镜还可以包括用于限定界面流体的厚度的间隔构件。

公开(公告)号：US1943554A

公开(公告)日：1934-01-16

申请号：US47643930

申请日：1930-08-19

Applicant: ZEISS CARL FA

Inventor： ROBERT RICHTER

IPC: G01J4/02

CPC classification number: G01J4/02

公开(公告)号：US20230068376A1

公开(公告)日：2023-03-02

申请号：US17740529

申请日：2022-05-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ingi KIM ,  Minhwan SEO ,  Sangwoo BAE ,  Akinori OKUBO ,  Jungchul LEE ,  Eunhee JEANG

IPC: G01J4/02

Abstract: Provided is a polarization measuring device including a stage on which a measurement target is provided, a light source assembly configured to emit incident light, a first polarimeter configured to polarize the incident light, a second polarimeter configured to polarize reflected light reflected from the measurement target that is irradiated by the incident light, a filter assembly configured to remove noise from the reflected light, and a detector configured to receive the reflected light and measure an intensity of the reflected light and a phase of the reflected light.

公开(公告)号：US11460620B1

公开(公告)日：2022-10-04

申请号：US16504026

申请日：2019-07-05

Applicant: Triad National Security, LLC

Inventor： Hou-Tong Chen

IPC: G02B5/30 ,  G01J4/02 ,  G02F1/01 ,  G02B1/00

Abstract: Metasurface polarization convertors permit conversion of an input linear polarization to right- or left-handed circular polarization based on the orientation of the input linear polarization, over a broad bandwidth and with high efficiency. The reflected circular polarizations can be used to evaluate samples for circular dichroism. A THz time-domain detection provides a time domain terahertz signal that is Fourier transformed to produce a THz circular dichroism spectrum.

公开(公告)号：US20200300615A1

公开(公告)日：2020-09-24

申请号：US16825338

申请日：2020-03-20

Applicant: CORNING INCORPORATED

Inventor： Ryan Claude Andrews ,  Pierre Michel Bouzi ,  William John Furnas ,  Jeremiah Robert Jacobson ,  Glenn Abram Newcomer ,  Evan Lewis Olson ,  Babak Robert Raj ,  Rostislav Vatchev Roussev ,  Viktor Stepanov ,  Nathaniel David Wetmore

IPC: G01B11/16 ,  G01J4/02

Abstract: The hybrid measurement system includes an evanescent prism coupling spectroscopy (EPCS) sub-system and a light-scattering polarimetry (LSP) sub-system. The EPCS sub-system includes an EPCS light source optically coupled to an EPCS detector system through an EPCS coupling prism. The LSP sub-system includes an LSP light source optically coupled to an optical compensator, which in turn is optically coupled to a LSP detector system via a LSP coupling prism. A support structure supports the EPCS and LSP coupling prisms to define a coupling prism assembly, which supports the two prisms at a measurement location. Stress measurements made using the EPCS and LSP sub-systems are combined to fully characterize the stress properties of a transparent chemically strengthened substrate. Methods of processing the EPCS and LSP measurements to improve measurement accuracy are also disclosed.

公开(公告)号：US10460422B2

公开(公告)日：2019-10-29

申请号：US15765086

申请日：2016-09-09

Applicant: SONY CORPORATION

Inventor： Teppei Kurita ,  Shun Kaizu ,  Yuhi Kondo ,  Yasutaka Hirasawa ,  Ying Lu

IPC: G06T3/40 ,  H04N9/04 ,  B60R11/02 ,  H04N5/232 ,  G06T7/90 ,  H04N5/30 ,  H04N9/083 ,  H04N9/31 ,  G01J4/02 ,  G01J4/00

Abstract: The polarization imaging unit generates a polarized image including pixels for each of a plurality of polarization components. The demosaicing unit calculates a pixel signal for each polarization component by using the pixel signal of the target pixel of the polarized image and the pixel signal of the pixel for each of the identical polarization components located near the target pixel. In one example, a low frequency component is calculated for each polarization component using the pixel signal of the pixel located near the target pixel for each of the identical polarization components. In addition, component information indicating relationship between the low frequency component of the polarization component of the polarized image and the pixel signal of the target pixel is acquired. Furthermore, the pixel signal for each polarization component in the target pixel is calculated based on the low frequency component and the component information for each polarization component.

公开(公告)号：US20180252586A1

公开(公告)日：2018-09-06

申请号：US15971455

申请日：2018-05-04

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev

IPC: G01J4/02 ,  G01N21/23 ,  G02B5/04 ,  G02B5/06 ,  G02B6/34 ,  G01N21/43 ,  G01N21/41 ,  G01J4/00

CPC classification number: G01J4/02 ,  G01J2004/005 ,  G01N21/23 ,  G01N21/43 ,  G01N2021/4126 ,  G01N2021/434 ,  G02B5/04 ,  G02B5/06 ,  G02B6/34

Abstract: Apparatus and methods for measuring mode spectra for ion-exchanged glass substrates having a steep index region are disclosed. An interfacing fluid is provided between the coupling prism and the glass substrate. The interfacing fluid thickness is selected so that the variation in modal birefringence with fluid thickness is reduced to an acceptable level. The coupling prism can include a prism coating on the coupling surface so that the substrate-prism interface includes the prism coating. The coupling prism can also include stand-off members that serve to define the thickness of the interfacing fluid.

公开(公告)号：US20180094980A1

公开(公告)日：2018-04-05

申请号：US15498233

申请日：2017-04-26

Applicant: POLARIS SENSOR TECHNOLOGIES, INC.

Inventor： J Larry PEZZANITI

IPC: G01J4/02 ,  G01J5/58 ,  G02B5/30

CPC classification number: G01J4/02 ,  G01J3/0208 ,  G01J3/0229 ,  G01J4/04 ,  G01J5/58 ,  G01J2005/586 ,  G02B5/30 ,  G02B5/3025

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.

公开(公告)号：US09709696B2

公开(公告)日：2017-07-18

申请号：US14911361

申请日：2013-10-16

Applicant: Halliburton Energy Services, Inc.

Inventor： James M. Price ,  David L. Perkins

IPC: G01J4/00 ,  G01V8/20 ,  G01N21/21 ,  E21B49/08 ,  G01J4/02 ,  G02B1/02

CPC classification number: G01V8/20 ,  E21B49/081 ,  G01J4/02 ,  G01N21/21 ,  G01N2201/0683 ,  G01N2201/12 ,  G02B1/02 ,  G02B5/3025

Abstract: An intensity-independent optical computing device and method for performing multivariate optical computing based on changes in polarization of the reflected and/or transmitted electromagnetic radiation to thereby determine sample characteristics.

公开(公告)号：US09702812B2

公开(公告)日：2017-07-11

申请号：US14706743

申请日：2015-05-07

Applicant: Theodore Peter Rakitzis

Inventor： Theodore Peter Rakitzis

IPC: G01N21/19 ,  G01J4/02 ,  G01J4/04 ,  G01N21/21 ,  G01J4/00

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 laser beam and a second input laser beam into the ring cavity, and a Faraday rotator and a phase compensator configured to suppress a birefringent background as the first and second laser beams pass through the ring cavity, wherein the plurality of mirrors, Faraday rotator, and phase compensator are configured such that light from the first and second laser beams passes through a chiral material located within the cavity a sufficient number of times for a measurement of optical rotary dispersion (ORD) and circular dichroism (CD) of light transmitted through the chiral material to be obtained. Particular implementations include monolithic ring cavities or microresonators or use of intra-cavity gain media.