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Proceedings Paper

Ultracompact plasmonic sensor with graphene-based silicon reflector
Author(s): Jicheng Wang; Xiaosai Wang; Ci Song; Xiushan Xia
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Paper Abstract

In this paper, we investigate a monolayer graphene placed on a doped-silicon grating numerically and studied the dependence of its transmission spectra on the geometrical parameters of the grating. A stop-band with great tunability in the mid-infrared region of the transmission spectra are obtained in a much more compact structure size compared to a traditional fiber Bragg grating (FBG). In addition, by inserting a defect into the center of the structure, we introduce a phase shift of π phase shift into the field, leading to an open window in the stop-band transmission spectra. With the good tunability and compact size, our proposed structure can be utilized as graphene-based ultra-compact and highly sensitive plasmonic senors for potential applications.

Paper Details

Date Published: 21 October 2016
PDF: 8 pages
Proc. SPIE 9987, Electro-Optical and Infrared Systems: Technology and Applications XIII, 99870X (21 October 2016); doi: 10.1117/12.2240883
Show Author Affiliations
Jicheng Wang, Jiangnan Univ. (China)
Xiaosai Wang, Jiangnan Univ. (China)
Ci Song, Jiangnan Univ. (China)
Xiushan Xia, Jiangnan Univ. (China)

Published in SPIE Proceedings Vol. 9987:
Electro-Optical and Infrared Systems: Technology and Applications XIII
David A. Huckridge; Reinhard Ebert; Stephen T. Lee, Editor(s)

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