Real-time, continuous-wave terahertz imaging by use of a microbolometer focal-plane array

被引：218

作者：

Lee, AWM

Hu, Q

机构：

[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

OPTICS LETTERS | 2005年 / 30卷 / 19期

关键词：

D O I：

10.1364/OL.30.002563

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Real-time, continuous-wave terahertz imaging is demonstrated with a 10 mW, 2.52 THz (118.8 mu m) far-infrared gas laser and a 160 X 120 element microbolometer camera. The microbolometer camera is designed for wavelengths of 7.5 - 14 mu m but retains sensitivity at terahertz (THz) frequencies. The setup has no moving parts, and transmission-mode THz images can be obtained at the video rate of 60 frames/s. The peak signal-to-noise ratio is estimated to be 13 dB for a single frame of video, acquired in 16 ms. With this setup, THz imaging through a FedEx envelope is demonstrated, showing the feasibility of real-time mail screening. (c) 2005 Optical Society of America.

引用

页码：2563 / 2565

页数：3

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