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公开(公告)号：US20150355022A1
公开(公告)日：2015-12-10
申请号：US14761328
申请日：2014-01-16
Applicant: UNIVERSITEIT LEIDEN
Inventor： Christoph Ulrich Keller , Frans Snik
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 。
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公开(公告)号：US09791315B2
公开(公告)日：2017-10-17
申请号：US14761328
申请日：2014-01-16
Applicant: UNIVERSITEIT LEIDEN
Inventor： Christoph Ulrich Keller , Frans Snik
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.
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公开(公告)号：US11378513B2
公开(公告)日：2022-07-05
申请号：US17052472
申请日：2019-05-03
Applicant: UNIVERSITEIT LEIDEN
Inventor： Frans Snik , Christoph Ulrich Keller
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.
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