High-resolution terahertz reflective imaging and image restoration

被引：43
|
作者：
Ding, Sheng-Hui [1 ]
Li, Qi [1 ]
Yao, Rui [1 ]
Wang, Qi [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150080, Peoples R China
来源：
APPLIED OPTICS | 2010年 / 49卷 / 36期
关键词：
D O I：
10.1364/AO.49.006834
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a high-resolution terahertz (THz) reflective imaging system, operating at 2: 52 THz, that employs a continuous-wave THz gas laser and a pyroelectric detector. The spatial resolution was evaluated from the system's modulation transfer function and tested by scanning a series of resolution targets. To further improve the image quality, Lucy-Richardson method was adopted to restore the scanning result. With the scanning spot profile measured using knife edge method, a satisfying restoration result can be obtained. Finally, the system's performance was observed by imaging some different test objects. (C) 2010 Optical Society of America
引用
收藏
页码：6834 / 6839
页数：6
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