Fourier transform spectrometer and method for operating Fourier transform spectrometer

• Main Authors: MARTIN HUSNIK, CHRISTIAN HUBER, BENEDIKT STEIN
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2018
• 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

The invention relates to a Fourier transform spectrometer and a method for operating a Fourier transform spectrometer. The present invention relates to a Fourier transform spectrometer, comprising: apolarization unit for generating at least one first light beam of a first polarization state; a detection unit for detecting light; and a phase shifting unit having at least one first phase shifting element a first phase shifting element configured to generate, in the case of using the first light beam, a first phase-shifted beam of partial rays that are phase shifted from each other and orthogonally polarized to each other; a lens unit having at least one first lens element Constructing to divert the first phase shifting beam onto the first portion of the detecting unit; an additional phase shifting unit disposed between the phase shifting unit and the lens unit for use between portions of the first phase shifted beam (and/or between the partial rays of the second phase-shifted light) anadditional angle-dependent