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    DEVICE AND A METHOD FOR POLARIZATION DEPENDENT IMAGING
    11.
    发明公开
    DEVICE AND A METHOD FOR POLARIZATION DEPENDENT IMAGING 审中-公开

    公开(公告)号：US20240210245A1

    公开(公告)日：2024-06-27

    申请号：US18544947

    申请日：2023-12-19

    Applicant: IMEC VZW ,  Katholieke Universiteit Leuven

    Inventor： Farhan ALI ,  Bruno FIGEYS ,  Robert GEHLHAAR ,  Jan GENOE

    IPC: G01J4/02 ,  G02B5/30 ,  G02B27/28

    CPC classification number: G01J4/02 ,  G02B5/3083 ,  G02B27/283

    Abstract: According to an aspect of the present inventive concept there is provided a device for polarization dependent imaging, comprising:



    a detector comprising light sensitive elements;
    a plurality of light propagating units, each comprising a polarization splitter having a receiving end for receiving incident light, and comprising a first and a second waveguide.




    The first and second waveguides comprise a first and second portion of the receiving end. The first and second waveguides comprise a first and second distributing end, separate from each other. The polarization splitter is configured to propagate received light to the distributing ends. Each of the portions has an elongated shape such that propagation of light in the waveguides is dependent on the light's linear polarization. The elongated shapes are angled with respect to each other, such that the waveguides are configured to propagate different linear polarization directions.
    Each light propagating unit is arranged such that light at the first and second distributing ends is output towards a first and second light sensitive element, respectively.

    Single-shot Mueller matrix polarimeter
    12.
    发明授权
    Single-shot Mueller matrix polarimeter 有权

    公开(公告)号：US11921033B2

    公开(公告)日：2024-03-05

    申请号：US17311377

    申请日：2019-12-09

    Applicant: Oxford University Innovation Limited

    Inventor： Martin Booth ,  Chao He

    IPC: G01N21/21 ,  G01J4/02 ,  G01N21/47

    CPC classification number: G01N21/21 ,  G01J4/02 ,  G01N21/474 ,  G01N2021/4745

    Abstract: A single-shot Mueller matrix polarimeter (1700), MMP, comprising: a polarization state generator (1706), PSG, arranged to receive a source optical field (1704) and provide a probe field (1708) having a plurality of spatial portions, each portion having a different polarization state; a polarization state analyser (1718), PSA, arranged to receive a modified probe field (1716) resulting from interaction of the probe field generated by the PSG with a sample under investigation, and further arranged to apply, to each of a corresponding plurality of spatial portions of the modified probe field, a plurality of retardances and a plurality of fast axis orientations; and a detector (1720) arranged to detect an output (1722) of the PSA.

    Imaging polarimeter sensor with achromatic beam-splitting polarizer
    13.
    发明申请
    Imaging polarimeter sensor with achromatic beam-splitting polarizer 有权
    具有消色差分光偏振器的成像旋光计传感器

    公开(公告)号：US20050062966A1

    公开(公告)日：2005-03-24

    申请号：US10670103

    申请日：2003-09-23

    Applicant: Chungte Chen ,  David Ansley

    Inventor： Chungte Chen ,  David Ansley

    IPC: G01J4/02 ,  G01J4/00

    CPC classification number: G01J4/02

    Abstract: An imaging polarimeter sensor includes an achromatic beam-splitting polarizer that receives a polychromatic image beam of a scene and simultaneously produces a first polarized polychromatic image beam and a second polarized polychromatic image beam. The second polarized polychromatic image beam is of a different polarization than the first polarized polychromatic image beam and is angularly separated from the first polarized polychromatic image beam. The achromatic beam-splitting polarizer preferably includes a Wollaston prism through which the polychromatic image beam passes, and at least one grating through which the polychromatic image beam passes either before or after it passes through the Wollaston prism. An imaging detector receives the first polarized polychromatic image beam and the second polarized polychromatic image beam and produces an output image signal responsive to the first polarized polychromatic image beam and the second polarized polychromatic image beam.

    Abstract translation: 成像偏振计传感器包括接收场景的多色图像束并同时产生第一偏振多色图像束和第二偏振多色图像束的消色差分束偏振器。 第二偏振多色图像束具有与第一偏振多色图像束不同的偏振，并且与第一偏振多色图像束成角度地分离。 非彩色分光偏振器优选地包括多色图像束通过的沃拉斯顿棱镜，以及至少一个光栅，多色图像光束在其穿过渥拉斯顿棱镜之前或之后通过该光栅。 成像检测器接收第一偏振多色图像束和第二偏振多色图像束，并响应于第一偏振多色图像束和第二偏振多色图像束产生输出图像信号。

    System and method for polarization measurement
    19.
    发明专利
    System and method for polarization measurement 有权

    公开(公告)号：JP2013522643A

    公开(公告)日：2013-06-13

    申请号：JP2013500657

    申请日：2011-03-24

    Applicant: イエダ・リサーチ・アンド・デベロツプメント・カンパニー・リミテツド

    Inventor： ニール・ダヴィッドソン ,  アッシャー・フリーゼム ,  モティ・フリドマン

    IPC: G01J4/04 ,  G01N21/21

    CPC classification number: G01J4/04 ,  G01J4/02

    Abstract: 光学ビームの偏光を測定する際に使用するためのシステムおよび方法が提示される。 本システムは、入力光学ビームの横断面に沿って偏光プロファイルを決定するように構成され、動作可能であり、光学システムおよび画素行列を備える。 この光学システムは、前記入力光学ビームを所定の偏光関係を互いに有する所定の数のビーム構成要素に分割するように構成され、動作可能な偏光ビーム分割アセンブリであって、前記入力光学ビームの光学経路内に、前記入力光学ビームを一定の偏光関係を互いに有する第１の複数のビーム構成要素に分割する第１の偏光ビームスプリッタを備える偏光ビーム分割アセンブリと、前記第１の複数の前記ビーム構成要素の光学経路内に、前記ビーム構成要素のそれぞれを通常偏光および異常偏光を有するビームの対に分割するための複屈折素子とを備え、それによって、前記所定の数の出力ビーム構成要素が生成される。 画素行列は、前記出力ビーム構成要素の実質的に交差しない光学経路内に位置付けられ、前記出力ビーム構成要素内の強度分布をそれぞれ示す対応する数の出力データピースを生成し、前記データピースに含まれているデータは、入力光学ビームの横断面に沿って偏光プロファイルを示す。

    LIGHT SOURCE WITH CONTROLLABLE LINEAR POLARISATION
    20.
    发明公开
    LIGHT SOURCE WITH CONTROLLABLE LINEAR POLARISATION 审中-公开
    LICHTQULELE MIT STEBERBARER线性偏振

    公开(公告)号：EP3125019A1

    公开(公告)日：2017-02-01

    申请号：EP16181685.5

    申请日：2016-07-28

    Applicant: Agilent Technologies, Inc.

    Inventor： Tella, Richard P. ,  Bricker, Dower Cameron ,  Han, Yang ,  Klenczewski, Adam

    IPC: G02B27/28 ,  G02F1/01 ,  G02B26/00 ,  F21V9/14 ,  H01S3/10 ,  G01N21/21

    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 (11, 30, 40) having first and second wire-grid polarizers (63, 64) and a laser (31, 71) that emits a beam of linearly polarized light that is characterized by a propagation direction is disclosed. The first wire-grid polarization filter (63) is characterized by a first linear polarization pass direction and a first actuator (65) for causing the first linear polarization pass direction to rotate relative to the beam of linearly polarized light. The second wire-grid polarization filter (64) 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 (29) sets the first and second linear polarization pass directions to provide linearly polarized light having a specified polarization direction.

    Abstract translation: 公开了具有第一和第二线栅偏振器（63,64）的光源（11,30,40）和发射以传播方向为特征的线偏振光束的激光器（31,71）。 第一线栅偏振滤光器（63）的特征在于第一线偏振光通过方向和第一致动器（65），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（64）的特征在于第二线偏振光通过方向和第二致动器，用于使第二线偏振光通过方向相对于线偏振光束旋转。 控制器（29）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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