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Proceedings Paper

Investigation on optical properties of BSA protein on single-layer graphene using terahertz spectroscopy technology
Author(s): Shengxin Yang; Pengju Du; Yiwen Sun
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Paper Abstract

Terahertz (THz) spectroscopy is sensitive to probe several aspects of biological systems. In THz frequency, electrically controllable Drude-like intraband absorption makes graphene a promising platform for building graphene-based optoelectronic devices such as THz biosensor. In this work, BSA protein thin films were spin-coated and incubated on single-layer graphene. IR lasers with different power were used as the pump light to stimulate the sandwich-like sample respectively. The graphene monolayer complex conductivity was calculated using the transmission method. The novel optical properties of single-layer graphene and BSA protein on graphene in the THz range will be discussed in this paper.

Paper Details

Date Published: 3 November 2016
PDF: 7 pages
Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 1003029 (3 November 2016); doi: 10.1117/12.2246258
Show Author Affiliations
Shengxin Yang, Shenzhen Univ. (China)
Pengju Du, Shenzhen Univ. (China)
Yiwen Sun, Shenzhen 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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