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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 30, Iss. 19 — Oct. 1, 2005
  • pp: 2563–2565

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

Alan Wei Lee and Qing Hu  »View Author Affiliations


Optics Letters, Vol. 30, Issue 19, pp. 2563-2565 (2005)
http://dx.doi.org/10.1364/OL.30.002563


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Abstract

Real-time, continuous-wave terahertz imaging is demonstrated with a 10 mW, 2.52 THz (118.8 µm) far-infrared gas laser and a 160×120 element microbolometer camera. The microbolometer camera is designed for wavelengths of 7.5-14 µm 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.

© 2005 Optical Society of America

OCIS Codes
(110.2970) Imaging systems : Image detection systems
(110.3080) Imaging systems : Infrared imaging
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers

ToC Category:
Imaging Systems

Citation
Alan Wei Lee and Qing Hu, "Real-time, continuous-wave terahertz imaging by use of a microbolometer focal-plane array," Opt. Lett. 30, 2563-2565 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-19-2563

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