Calibration method to improve the accuracy of THz imaging and spectroscopy in reflection geometry

被引:39
|
作者
Fan, Shuting [1 ]
Parrott, Edward P. J. [2 ]
Ung, Benjamin S. Y. [2 ]
Pickwell-MacPherson, Emma [2 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Kowloon, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China
关键词
TIME-DOMAIN SPECTROSCOPY; TERAHERTZ PULSED SPECTROSCOPY; OPTICAL-CONSTANTS; WATER;
D O I
10.1364/PRJ.4.000A29
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We introduce a novel method to accurately extract the optical parameters in terahertz reflection imaging. Our method builds on standard self-referencing methods using the reflected signal from the bottom of the imaging window material to further compensate for time-dependent system fluctuations and position-dependent variation in the window thickness. Our proposed method not only improves the accuracy, but also simplifies the imaging procedure and reduces measurement times. (C) 2016 Chinese Laser Press
引用
收藏
页码:A29 / A35
页数:7
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