WO2011134111A1 - Spectromètre optique et procédé pour augmenter l'intensité de signal en spectroscopie optique - Google Patents

Spectromètre optique et procédé pour augmenter l'intensité de signal en spectroscopie optique Download PDF

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Publication number
WO2011134111A1
WO2011134111A1 PCT/CN2010/000601 CN2010000601W WO2011134111A1 WO 2011134111 A1 WO2011134111 A1 WO 2011134111A1 CN 2010000601 W CN2010000601 W CN 2010000601W WO 2011134111 A1 WO2011134111 A1 WO 2011134111A1
Authority
WO
WIPO (PCT)
Prior art keywords
channels
light
optical
sample
optical signals
Prior art date
Application number
PCT/CN2010/000601
Other languages
English (en)
Inventor
Ge LIU
Zhaohui Du
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/CN2010/000601 priority Critical patent/WO2011134111A1/fr
Publication of WO2011134111A1 publication Critical patent/WO2011134111A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/45—Interferometric spectrometry
    • G01J3/453—Interferometric spectrometry by correlation of the amplitudes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/021—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using plane or convex mirrors, parallel phase plates, or particular reflectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0229—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2846—Investigating the spectrum using modulation grid; Grid spectrometers

Definitions

  • a detection unit adapted to acquire optical signals from the one or more channels passing through the optical signal encoder.
  • a linear transform encoder is implemented so that the low SNR caused by multiplexing in the spatial domain is avoided.
  • the flexibility of detector selection is significantly improved, which means that a single detector, one-dimensional detector array, two- dimensional detector array, or even a hybrid type can be used for light detection by changing an encoding pattern of the encoder without altering any hardware.
  • FIG.2 A block diagram of an alternative system is illustrated in FIG.2. As shown in
  • the optical signals in the multi-channels can be spatially decoupled after the interferogram is produced.
  • spatially decoupling the optical signals in the multi-channels is to enable the optical path difference between any two out of the
  • L temporal * ⁇ multi-channels larger than a temporal coherent length ⁇ em P° ral ; wherein ⁇ , and ⁇ is the wavelength of a spectral line, and j s me wavelength width of a spectral line.
  • the encoding pattern is a linear transform, for example, preferably a

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

La présente invention concerne un spectromètre optique et un procédé pour augmenter l'intensité de signal en spectroscopie optique. Le spectromètre comprend : une unité de source lumineuse et d'échantillonnage, adaptée pour émettre de la lumière et la projeter sur un échantillon ; une unité de prétraitement de signal optique, adaptée pour recevoir la lumière provenant de l'échantillon et sortir des signaux optiques multiplexés par division de phase et spatialement découplés dans des canaux multiples ; un encodeur de signal optique, adapté pour permettre aux signaux optiques d'un ou de plusieurs canaux parmi les canaux multiples de passer et pour rejeter les signaux optiques du reste des canaux multiples en fonction d'un schéma d'encodage ; et une unité de détection, adaptée pour acquérir des signaux optiques provenant du ou des canaux passant dans l'encodeur de signal optique. L'appareil et le procédé de la présente invention peuvent fonctionner effectivement avec un faible débit et permettre une meilleure fiabilité fonctionnelle.
PCT/CN2010/000601 2010-04-30 2010-04-30 Spectromètre optique et procédé pour augmenter l'intensité de signal en spectroscopie optique WO2011134111A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/000601 WO2011134111A1 (fr) 2010-04-30 2010-04-30 Spectromètre optique et procédé pour augmenter l'intensité de signal en spectroscopie optique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/000601 WO2011134111A1 (fr) 2010-04-30 2010-04-30 Spectromètre optique et procédé pour augmenter l'intensité de signal en spectroscopie optique

Publications (1)

Publication Number Publication Date
WO2011134111A1 true WO2011134111A1 (fr) 2011-11-03

Family

ID=44860733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/000601 WO2011134111A1 (fr) 2010-04-30 2010-04-30 Spectromètre optique et procédé pour augmenter l'intensité de signal en spectroscopie optique

Country Status (1)

Country Link
WO (1) WO2011134111A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130155414A1 (en) * 2011-12-15 2013-06-20 Canon Kabushiki Kaisha Measuring apparatus including multi-wavelength interferometer
CN103344609A (zh) * 2013-06-26 2013-10-09 无锡微奥科技有限公司 一种微型傅里叶变换光谱仪
WO2014042642A1 (fr) 2012-09-13 2014-03-20 Halliburton Energy Services, Inc. Spectromètre hétérodyne spatial à l'élément de calcul intégré (sh-ice)
CN107655570A (zh) * 2017-09-12 2018-02-02 安徽理工大学 一种同步的移动机械模板式Hadamard光谱仪

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6603555B1 (en) * 1999-01-19 2003-08-05 Anritsu Corporation Gas detecting apparatus using laser absorption spectroscopy
US20060072117A1 (en) * 2002-11-25 2006-04-06 Ruth Albert A Resonator-amplified absorption spectrometer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6603555B1 (en) * 1999-01-19 2003-08-05 Anritsu Corporation Gas detecting apparatus using laser absorption spectroscopy
US20060072117A1 (en) * 2002-11-25 2006-04-06 Ruth Albert A Resonator-amplified absorption spectrometer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SVEN E. FIEDLER, INCOHERENT BROAD-BAND CAVITY-ENHANCED ABSORPTION SPECTROSCOPY, 2005, pages 36 - 38, 53-54, 62-63, 69-70, 91-92 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130155414A1 (en) * 2011-12-15 2013-06-20 Canon Kabushiki Kaisha Measuring apparatus including multi-wavelength interferometer
US9372068B2 (en) * 2011-12-15 2016-06-21 Canon Kabushiki Kaisha Measuring apparatus including multi-wavelength interferometer
WO2014042642A1 (fr) 2012-09-13 2014-03-20 Halliburton Energy Services, Inc. Spectromètre hétérodyne spatial à l'élément de calcul intégré (sh-ice)
EP2895913A4 (fr) * 2012-09-13 2016-05-18 Halliburton Energy Services Inc Spectromètre hétérodyne spatial à l'élément de calcul intégré (sh-ice)
CN103344609A (zh) * 2013-06-26 2013-10-09 无锡微奥科技有限公司 一种微型傅里叶变换光谱仪
CN107655570A (zh) * 2017-09-12 2018-02-02 安徽理工大学 一种同步的移动机械模板式Hadamard光谱仪
CN107655570B (zh) * 2017-09-12 2020-01-10 安徽理工大学 一种同步的移动机械模板式Hadamard光谱仪

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