DOAJ Open Access 2017

Dynamically Tunable Plasmon-Induced Transparency in On-chip Graphene-Based Asymmetrical Nanocavity-Coupled Waveguide System

Pingping Qiu Weibin Qiu Zhili Lin Houbo Chen Junbo Ren +3 lainnya

Abstrak

Abstract A graphene-based on-chip plasmonic nanostructure composed of a plasmonic bus waveguide side-coupled with a U-shaped and a rectangular nanocavities has been proposed and modeled by using the finite element method in this paper. The dynamic tunability of the plasmon-induced transparency (PIT) windows has been investigated. The results reveal that the PIT effects can be tuned via modifying the chemical potential of the nanocavities and plasmonic bus waveguide or by varying the geometrical parameters including the location and width of the rectangular nanocavity. Further, the proposed plasmonic nanostructure can be used as a plasmonic refractive index sensor with a sensing sensibility of 333.3 nm/refractive index unit (RIU) at the the PIT transmission peak. Slow light effect is also realized in the PIT system. The proposed nanostructure may pave a new way towards the realization of graphene-based on-chip integrated nanophotonic devices.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials

Penulis (8)

Pingping Qiu

Weibin Qiu

Zhili Lin

Houbo Chen

Junbo Ren

Jia-Xian Wang

Qiang Kan

Jiao-Qing Pan

Format Sitasi

APA MLA BibTeX

Qiu, P., Qiu, W., Lin, Z., Chen, H., Ren, J., Wang, J. et al. (2017). Dynamically Tunable Plasmon-Induced Transparency in On-chip Graphene-Based Asymmetrical Nanocavity-Coupled Waveguide System. https://doi.org/10.1186/s11671-017-2148-z

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Informasi Jurnal

Tahun Terbit: 2017
Sumber Database: DOAJ
DOI: 10.1186/s11671-017-2148-z
Akses: Open Access ✓