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Proceedings Paper

Polarization-controlled THz spectroscopic imaging for nondestructive inspection
Author(s): LiangLiang Zhang; Fei Yu; Hua Zhong; Chao Deng; YongJu Zheng; Cunlin Zhang; Yuejin Zhao
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Paper Abstract

We present a polarization-controlled terahertz (THz) wave spectroscopic imaging modality to investigate the anisotropy of the detected materials. The polarization of the emitted THz wave is controlled to be horizontal and vertical by changing the relative phase of the fundamental and second-harmonic waves in the two-color laser-induced air plasma THz generation configuration. The anisotropy of the industrial sprayed-on-foam-insulation (SOFI) is characterized by measuring its azimuthal angle dependent THz polarization response. This work demonstrated that THz wave polarization-controlled imaging technique can be used for highly sensitive industrial inspection and biological related characterization.

Paper Details

Date Published: 4 November 2010
PDF: 7 pages
Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 78541C (4 November 2010); doi: 10.1117/12.869075
Show Author Affiliations
LiangLiang Zhang, Capital Normal Univ. (China)
Fei Yu, Capital Normal Univ. (China)
Hua Zhong, Peking Univ. (China)
Chao Deng, Capital Normal Univ. (China)
YongJu Zheng, Capital Normal Univ. (China)
Cunlin Zhang, Capital Normal Univ. (China)
Yuejin Zhao, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 7854:
Infrared, Millimeter Wave, and Terahertz Technologies
Cunlin Zhang; Xi-Cheng Zhang; Peter H. Siegel; Li He; Sheng-Cai Shi, Editor(s)

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