FOURIER TRANSFORM SPECTROMETER AND METHOD OF FOURIER TRANSFORM SPECTROSCOPY

A Fourier transform spectrometer comprising an interferometer comprising a fixed mirror, a movable mirror and a detector, wherein: the mirrors are positioned parallel to each other and form an optical cavity; the movable mirror is operable to move relative the fixed mirror to change the size of the...

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Bibliographic Details
Main Authors ECHTERMEYER, Tim, UNSUREE, Nawapong
Format Patent
LanguageEnglish
French
German
Published 10.05.2023
Subjects
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Summary:A Fourier transform spectrometer comprising an interferometer comprising a fixed mirror, a movable mirror and a detector, wherein: the mirrors are positioned parallel to each other and form an optical cavity; the movable mirror is operable to move relative the fixed mirror to change the size of the optical cavity; a first mirror of the mirrors is positioned such that light received from a sample enters the optical cavity through a back of the first mirror; the detector is positioned and operable to detect light which has exited the optical cavity through a back of the second mirror of the mirrors and output an interferogram; and the mirrors are distanced from each other such that the movable mirror is at or can move to a position where at least two paths to the detector for received light reflected within the interferometer are equal length.
Bibliography:Application Number: EP20210742165