公开(公告)号：WO2016001173A1

公开(公告)日：2016-01-07

申请号：PCT/EP2015/064756

申请日：2015-06-29

Applicant: UNIVERSITEIT LEIDEN

Inventor： SNIK, Frans ,  HARTEN, Gerard van ,  KELLER, Christoph

IPC: G02B5/30 ,  G02F1/01

CPC classification number: G02B5/3083 ,  G02F1/139 ,  G02F2001/0139 ,  G02F2202/36 ,  G02F2202/40

Abstract: A broadband polarization scrambler comprising a retarder material layer having a plurality of through-thickness zones extending through the thickness of the layer, each zone configured to alter the polarization state of light passing through the layer differently than each adjacent zone whilst retaining the circular polarization of at least a portion of incoming circularly polarized light.

Abstract translation: 一种宽带偏振扰码器，包括具有延伸穿过层的厚度的多个贯穿厚度区域的延迟材料层，每个区域被配置为改变穿过该层的光的偏振状态，而不同于每个相邻区域，同时保持 至少一部分进入的圆偏振光。

公开(公告)号：WO2019212354A1

公开(公告)日：2019-11-07

申请号：PCT/NL2019/050267

申请日：2019-05-03

Applicant: UNIVERSITEIT LEIDEN

Inventor： SNIK, Frans ,  KELLER, Christoph

IPC: G01N21/21 ,  G01N21/31 ,  G01J3/433 ,  G01J4/04 ,  G02F1/01 ,  G01J3/447 ,  G01N21/17

Abstract: Apparatus (100) for determining presence of a gas (103) is provided, the apparatus (100) comprising: one or more retarders (109) to spectrally modulate polarisation of received radiation in accordance with a plurality of polarised spectral modulation profiles which are offset in phase from each other, the radiation output from the one or more retarders (109) comprising radiation having polarisation spectrally modulated in accordance with the said plurality of polarised spectral modulation profiles in a common beam of radiation; one or more polarisers (147, 148); and radiation detectors (142, 144) to detect radiation output from the one or more retarders (109) filtered for respective polarisation states by the one or more polarisers (147, 148), the detectors (142, 144) selectively and separately detecting on different detectors at the same time polarised radiation conforming to each of at least first and second of the said polarised spectral modulation profiles to thereby provide at least respective first and second polarisation-dependent radiation intensity measurements from which the presence of the gas (103) can be determined.

公开(公告)号：WO2014111487A1

公开(公告)日：2014-07-24

申请号：PCT/EP2014/050842

申请日：2014-01-16

Applicant: UNIVERSITEIT LEIDEN

Inventor： KELLER, Christoph Ulrich ,  SNIK, Frans

IPC: G01J1/04 ,  G01J3/14 ,  G01J4/00 ,  G01J3/02

CPC classification number: G01J3/0224 ,  G01J1/0425 ,  G01J1/4228 ,  G01J3/0218 ,  G01J3/14 ,  G01J4/00 ,  G01J4/04 ,  G02F1/0136

Abstract: A polarimetry apparatus comprising a plurality of flexible light conduits each having first and second ends, and a respective polarization modulator associated with each light conduit, wherein each light conduit is configured to receive incident light from a different predetermined region in space via the first end, and deliver said light to a detector unit via the second end, and wherein the polarization modulator is configured to modulate the polarization of the light to enable a partial or complete polarization state of the incident light to be determined by the detector unit for each light conduit.

Abstract translation: 一种包括多个具有第一和第二端的柔性光导管以及与每个光导管相关联的相应的偏振调制器的偏振仪，其中每个光导管经配置以经由第一端接收来自不同预定区域的入射光， 并且经由所述第二端将所述光传送到检测器单元，并且其中所述偏振调制器被配置为调制所述光的偏振，以使所述入射光的部分或完全偏振状态由所述检测器单元确定用于每个光导管 。

公开(公告)号：EP2946181A1

公开(公告)日：2015-11-25

申请号：EP14701017.7

申请日：2014-01-16

Applicant: Universiteit Leiden

Inventor： KELLER, Christoph Ulrich ,  SNIK, Frans

IPC: G01J1/04 ,  G01J3/14 ,  G01J4/00 ,  G01J3/02

CPC classification number: G01J3/0224 ,  G01J1/0425 ,  G01J1/4228 ,  G01J3/0218 ,  G01J3/14 ,  G01J4/00 ,  G01J4/04 ,  G02F1/0136

Abstract: A polarimetry apparatus comprising a plurality of flexible light conduits each having first and second ends, and a respective polarization modulator associated with each light conduit, wherein each light conduit is configured to receive incident light from a different predetermined region in space via the first end, and deliver said light to a detector unit via the second end, and wherein the polarization modulator is configured to modulate the polarization of the light to enable a partial or complete polarization state of the incident light to be determined by the detector unit for each light conduit.

Abstract translation: 一种包括多个具有第一和第二端的柔性光导管的偏振仪，以及与每个光导管相关联的相应的偏振调制器，其中每个光导管经配置以经由第一端接收来自空间中的不同预定区域的入射光， 并且经由所述第二端将所述光传送到检测器单元，并且其中所述偏振调制器被配置为调制所述光的偏振，以使所述入射光的部分或完全偏振状态由所述检测器单元确定用于每个光导管 。

公开(公告)号：EP3811056A1

公开(公告)日：2021-04-28

申请号：EP19742994.7

申请日：2019-05-03

Applicant: Universiteit Leiden

Inventor： SNIK, Frans ,  KELLER, Christoph

IPC: G01N21/21 ,  G01N21/31 ,  G01J3/433 ,  G01J4/04 ,  G02F1/01 ,  G01J3/447 ,  G01N21/17