Tuning Plasmon Induced Reflectance with Hybrid Metasurfaces†
AbstractElectrically tunable metasurfaces with graphene offer design flexibility to efficiently manipulate and control light. These metasurfaces can be used to generate plasmon-induced reflectance (PIR), which can be tuned by electrostatic doping of the graphene layer. We numerically investigated two designs for tunable PIR devices using the finite difference time-domain (FDTD) method. The first design is based on two rectangular antennas of the same size and a disk; in the second design, two parallel rectangular antennas with different dimensions are used. The PIR-effect was achieved by weak hybridization of two bright modes in both devices and tuned by changing the Fermi level of graphene. A total shift of ∼362 nm was observed in the design with the modulation depth of 53% and a spectral contrast ratio of 76%. These tunable PIR devices can be used for tunable enhanced biosensing and switchable systems. View Full-Text
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Habib, M.; Ozbay, E.; Caglayan, H. Tuning Plasmon Induced Reflectance with Hybrid Metasurfaces. Photonics 2019, 6, 29.
Habib M, Ozbay E, Caglayan H. Tuning Plasmon Induced Reflectance with Hybrid Metasurfaces. Photonics. 2019; 6(1):29.Chicago/Turabian Style
Habib, Mohsin; Ozbay, Ekmel; Caglayan, Humeyra. 2019. "Tuning Plasmon Induced Reflectance with Hybrid Metasurfaces." Photonics 6, no. 1: 29.
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