Open AccessOptimization for vertically scanning terahertz attenuated total reflection imaging
Author(s) -
Hongxiang Liu,
Yuye Wang,
Degang Xu,
Zhinan Jiang,
Jining Li,
Limin Wu,
Chao Yan,
Longhuang Tang,
Yixin He,
Dexian Yan,
Xin Ding,
Hua Feng,
Jianquan Yao
Publication year - 2018
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.26.020744
Subject(s) - terahertz radiation , optics , prism , attenuated total reflection , total internal reflection , reflection (computer programming) , polarization (electrochemistry) , materials science , terahertz spectroscopy and technology , physics , infrared , computer science , chemistry , programming language
Terahertz attenuated total reflection imaging has been used to develop preliminary applications without any in-depth analysis of the nature of present systems. Based on our proposed vertically scanning imaging system, an analysis of optimum prism design and polarization selection for error reduction is presented theoretically and experimentally, showing good agreement. By taking the secondary reflection inside the prism and the prism deflection into consideration, p-polarized terahertz waves are recommended for prisms with a base angle below 31°, leading to minimum error. This work will contribute to the development of more practical application of terahertz attenuated total reflection scanning imaging in various fields with enhanced performance.