https://doi.org/10.1140/epjd/s10053-024-00857-z
Regular Article - Optical Phenomena and Photonics
Tunable Fano resonance in mid-infrared region based on asymmetric graphene nanoribbon arrays
Department of Basic Sciences, Faculty of Engineering and Architecture, Altınbaş University, Dilmenler Caddesi, Bag̃cilar, 34218, Istanbul, Turkey
a
sehnaz.kanli@altinbas.edu.tr
Received:
4
January
2024
Accepted:
27
April
2024
Published online:
5
June
2024
An asymmetric graphene nanoribbon structure is presented to reach plasmonic Fano resonance in mid-infrared region when illuminated by a TM polarized light. Each mode of the Fano resonance is connected to the resonance mode occurred around each of nanoribbons with different width in the structure. Numerical studies show that the position and amplitude of the double resonances can be actively adapted via geometrical modification of the graphene structure or altering the doping level. Moreover, simulation results show highly remarkable enhancement in normalized electric field intensity for the asymmetric graphene structure compared to its symmetric counterparts. This feature is advantageous for construction of high sensitivity instruments such as sensors or filters.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
