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Proceedings Paper

Terahertz characteristics of graphene deposited on different substrates
Author(s): Chen Gong; Kaijun Mu; Jian Zuo; Cunlin Zhang
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Paper Abstract

Graphene is a promising candidate material for ultra-broadband photodetectors, as it interacts with light strongly from microwave to ultraviolet. We have characterized terahertz response from monolayer graphene samples deposited on sapphire, poly(methyl methacrylate) (PMMA), and high-resistivity silicon (HRS) substrates. The transmittance and sheet conductivity, and attenuation of graphene samples were obtained from transmission terahertz time-domain spectroscopy (THz-TDS). The mechanisms that contribute to the optical response of graphene were quite diverse among the different substrate media used. The results are promising for the development of modulators and switchable photoelectric devices.

Paper Details

Date Published: 3 November 2016
PDF: 6 pages
Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 1003022 (3 November 2016); doi: 10.1117/12.2246029
Show Author Affiliations
Chen Gong, Capital Normal Univ. (China)
Kaijun Mu, Zhengzhou Univ. (China)
Jian Zuo, Capital Normal Univ. (China)
Cunlin Zhang, Capital Normal Univ. (China)

Published in SPIE Proceedings Vol. 10030:
Infrared, Millimeter-Wave, and Terahertz Technologies IV
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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