Abstract

Real-time, continuous-wave terahertz (THz) imaging is demonstrated. A 1.89-THz optically-pumped far-infrared laser is used as the illumination source, and a 124×124 element room-temperature pyroelectric camera is adopted as the detector. With this setup, THz images through various wrapping materials are shown. The results show that this imaging system has the potential applications in real-time mail and security inspection.

© 2008 Chinese Optics Letters

Real-time terahertz scanning imaging by use of a pyroelectric array camera and image denoising

Qi Li, Sheng-Hui Ding, Rui Yao, and Qi Wang
J. Opt. Soc. Am. A 27(11) 2381-2386 (2010)

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

Alan WeiMin Lee and Qing Hu
Opt. Lett. 30(19) 2563-2565 (2005)

Continuous-wave terahertz digital holography by use of a pyroelectric array camera

Sheng-Hui Ding, Qi Li, Yun-Da Li, and Qi Wang
Opt. Lett. 36(11) 1993-1995 (2011)

Toward real-time terahertz imaging

Hichem Guerboukha, Kathirvel Nallappan, and Maksim Skorobogatiy
Adv. Opt. Photon. 10(4) 843-938 (2018)

Real-time imaging using a 2.8 THz quantum cascade laser and uncooled infrared microbolometer camera

Barry N. Behnken, Gamani Karunasiri, Danielle R. Chamberlin, Peter R. Robrish, and Jérôme Faist
Opt. Lett. 33(5) 440-442 (2008)