Tunable reflection type plasmoninduced transparency with graphene
Date
2018
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Abstract
Plasmon induced transparency (PIT) has always been investigated in transmission mode, which makes the design dependent upon the type of substrate. In this work, we propose a first tunable reflection type PIT (RPIT) device based on simple design of two parallel gold strips on graphene. We have numerically investigated the design by using Finite Difference Time-Domain (FDTD) method. This response is tunable by changing the Fermi level (Ef) of graphene. High tunability of 215 nm shift was observed by changing the Ef of graphene from 0 to 0.8 eV. The spectral contrast ratio of our device is 99.2%.
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2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)
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Institute of Electrical and Electronics Engineers
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English