Open AccessTerahertz wave polarization analyzer using birefringent materials
Author(s) -
Liangliang Zhang,
Hua Zhong,
Chao Deng,
Cunlin Zhang,
Yuejin Zhao
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.020266
Subject(s) - terahertz radiation , optics , birefringence , polarization (electrochemistry) , materials science , polarization rotator , spectrum analyzer , terahertz spectroscopy and technology , brewster's angle , radial polarization , optical axis , laser , optoelectronics , physics , laser beams , chemistry , brewster , laser beam quality , lens (geology)
We present a terahertz wave polarization analysis method to extract the polarization rotation angle with respect to the horizontal direction. A quartz crystal is used as the polarization analyzer with the optical axis of the crystal fixed at 45 degrees orientation. The polarization angle of the terahertz waves generated from two-color laser-induced gas plasma is extracted by measuring the transmitted ordinary and extraordinary beams. This work demonstrates that low-absorbance birefringent materials are good candidates for terahertz polarization analysis.