High-resolution terahertz reflective imaging and image restoration

被引：42

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

页码：6834 / 6839

页数：6

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