Tunable plasmonic Bragg reflector with different graphene nanoribbon widths
We propose and numerically analyze a Bragg reflector composed of periodically arranged graphene nanoribbon waveguides with different widths. Because of the unique property of the graphene edge mode, the effective index contrast used for the reflector can be obtained by designing graphene nanoribbons...
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| Published in: | Japanese Journal of Applied Physics Vol. 54; no. 9; pp. 95101 - 95105 |
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| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
The Japan Society of Applied Physics
01-09-2015
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| Online Access: | Get full text |
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| Summary: | We propose and numerically analyze a Bragg reflector composed of periodically arranged graphene nanoribbon waveguides with different widths. Because of the unique property of the graphene edge mode, the effective index contrast used for the reflector can be obtained by designing graphene nanoribbons with different widths without changing the dielectric substrate structure. Good band stop filtering characteristics are shown at the band gap of the transmission spectrum by numerical simulation. The performance of the proposed Bragg reflector is analyzed in terms of different parameters, such as the chemical potential, the number of periods, and the size of the unit cell. The proposed Bragg reflector will be expected to have important potential applications in the highly integrated SPP-based photonic devices. |
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| ISSN: | 0021-4922 1347-4065 |
| DOI: | 10.7567/JJAP.54.095101 |