title: Terahertz wave polarization analyzer using birefringent materials.
abstract: 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.
authors.affiliation: Beijing Key Lab for Terahertz Spectroscopy and Imaging, Capital Normal University, No 105 XiSanHuan BeiLu, Beijing 100048, China. zhlliang@126.com
authors.forename: Liangliang
authors.initials: L
authors.lastname: Zhang
authors.forename: Hua
authors.initials: H
authors.lastname: Zhong
authors.forename: Chao
authors.initials: C
authors.lastname: Deng
authors.forename: Cunlin
authors.initials: C
authors.lastname: Zhang
authors.forename: Yuejin
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D001718:Birefringence; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008420:Manufactured Materials; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D055053:Terahertz Radiation