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Proceedings Paper

Terahertz polarizing beam splitter based on copper grating on polyimide substrate
Author(s): Mengen Zhang; Xiangjun Li; Wentao Wang; Jianjun Liu; Zhi Hong
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Paper Abstract

A terahertz polarizing beam splitter, based on a copper grating on polyimide (PI) substrate, was fabricated by the way of laser induced and non-electrolytic plating. The good polarization characteristics of the splitter in the range of 0°-180°polarization are verified experimentally using backward wave oscillator at fixed frequency of 300GHz, and the insertion losses of 0.13dB and 0.32dB are measured for the transmitted and reflected beams, respectively. The broadband transmission of TM wave of the splitter was also measured by terahertz time-domain spectroscopy, and the extinction ratio larger than 22dB is obtained in the frequency range of 0.2-1.5THz. The experiment results are in good agreement with finite element simulation results.

Paper Details

Date Published: 5 December 2012
PDF: 6 pages
Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85621S (5 December 2012); doi: 10.1117/12.999604
Show Author Affiliations
Mengen Zhang, China Jiliang Univ. (China)
Xiangjun Li, China Jiliang Univ. (China)
Wentao Wang, China Jiliang Univ. (China)
Jianjun Liu, China Jiliang Univ. (China)
Zhi Hong, China Jiliang Univ. (China)

Published in SPIE Proceedings Vol. 8562:
Infrared, Millimeter-Wave, and Terahertz Technologies II
Cunlin Zhang; Xi-Cheng Zhang; He Li; Sheng-Cai Shi, Editor(s)

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