Wavelength-sensitive PIT-like double-layer graphene-based metal-dielectric-metal waveguide

A wavelength-sensitive plasmonically induced transparency-like (PIT-like) device consisting of a double-layer graphene-based metal-dielectric-metal (MDM) waveguide is proposed. We initially investigate monolayer graphene sandwiched in the MDM waveguide and utilize the phase-matching equation to expl...

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Bibliographic Details
Published in:Applied optics (2004) 2018-11, Vol.57 (33), p.9770
Main Authors: Song, Ci, Wang, Jicheng, Liu, Dongdong, Hu, Zheng-Da, Zhang, Feng
Format: Article
Language:English
Subjects:
Computer simulation
Finite element method
Graphene
Phase matching
Substrates
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Summary:A wavelength-sensitive plasmonically induced transparency-like (PIT-like) device consisting of a double-layer graphene-based metal-dielectric-metal (MDM) waveguide is proposed. We initially investigate monolayer graphene sandwiched in the MDM waveguide and utilize the phase-matching equation to explain the reflected resonant wavelength of the transmission spectra. The PIT-like windows in the transmission spectra of double-layer graphene can be achieved by tuning the applied bias voltage on the graphene layer and the distance between the graphene layer and metal substrate. We can obtain the high-performance PIT-like devices with a flexible on-off-on effect. We use a finite element method to do all related simulations.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.57.009770