Ultracompact plasmonic sensor with graphene-based silicon reflector

Jicheng Wang; Xiaosai Wang; Ci Song; Xiushan Xia

doi:10.1117/12.2240883

21 October 2016 Ultracompact plasmonic sensor with graphene-based silicon reflector

Jicheng Wang, Xiaosai Wang, Ci Song, Xiushan Xia

Proceedings Volume 9987, Electro-Optical and Infrared Systems: Technology and Applications XIII; 99870X (2016) https://doi.org/10.1117/12.2240883
Event: SPIE Security + Defence, 2016, Edinburgh, United Kingdom

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.

Conference Presentation

Citation Download Citation

Jicheng Wang, Xiaosai Wang, Ci Song, and Xiushan Xia "Ultracompact plasmonic sensor with graphene-based silicon reflector", Proc. SPIE 9987, Electro-Optical and Infrared Systems: Technology and Applications XIII, 99870X (21 October 2016); https://doi.org/10.1117/12.2240883

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