Review on polarimetric terahertz spectroscopy

Unique features of terahertz (THz) wave have made THz spectroscopy a potential and ideal tool for spectroscopy analysis. When a conventional THz spectroscopy system is used to measure a sample with birefringence, sometimes it is highly possible to misinterpret a polarization filter effect as normal...

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Bibliographic Details
Published in:Microwave and optical technology letters 2021-06, Vol.63 (6), p.1605-1611
Main Authors: Gong, Yandong, Zhang, Zhuo, Li, Ke, Ren, Wenxu
Format: Article
Language:English
Subjects:
Absorption spectra
Birefringence
Polarimetry
Polarization
spectroscopy
Spectrum analysis
terahertz
Terahertz frequencies
Upgrading
waveplate
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Summary:Unique features of terahertz (THz) wave have made THz spectroscopy a potential and ideal tool for spectroscopy analysis. When a conventional THz spectroscopy system is used to measure a sample with birefringence, sometimes it is highly possible to misinterpret a polarization filter effect as normal spectral absorption, thus leads to a wrong identification and conclusion. Polarimetric terahertz spectroscopy (PTS) is one kind of newly emerged technology upgraded from conventional terahertz spectroscopy, in addition to all the traditional functions, it is able to automatically measure additional state of polarization of THz wave, as well as additional polarization information of samples. Here in this article we will comprehensively review the principle and progress of such PTS technology.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.32809