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.
展开▼
机译：实时连续波太赫兹成像是用10 mW，2.52 THz（118.8μm）的远红外气体激光器和160 X 120元件的微辐射热仪相机演示的。微型测辐射热仪相机的波长设计为7.5-14μm，但在太赫兹（THz）频率下仍保持灵敏度。该设置没有移动部件，可以60帧/秒的视频速率获得传输模式THz图像。对于单帧视频，在16 ms内获取的峰值信噪比估计为13 dB。通过此设置，演示了通过FedEx信封进行的太赫兹成像，显示了实时邮件筛选的可行性。 （c）2005年美国眼镜学会。
展开▼
