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tunable multichannel plasmonic filter based on a single graphene sheet on a fibonacci quasiperiodic structure
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نویسنده
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feng yuncai ,liu youwen ,wang xiaohua ,dong daxing ,shi yaoyao ,tang liangzun
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منبع
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plasmonics - 2018 - دوره : 13 - شماره : 2 - صفحه:653 -659
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چکیده
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We propose a tunable multichannel plasmonic mid-infrared filter of a single graphene sheet depositing on a fibonacci quasiperiodic structure. the transmission spectra are numerically analyzed by a finite-difference time-domain (fdtd) method, and the results show that the filtering properties of the proposed structure can be tuned by the chemical potentials of graphene, the width and depth of air grooves, and the refractive index of the substrate. the simulation results are discussed analytically by deducing the dispersion relation of surface plasmon polariton propagating on four layers structure of air/graphene/air/dielectric. the proposed structure find potential applications in tunable filters, sensors, and integrated photonic circuits.
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کلیدواژه
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surface plasmon polaritons ,graphene ,fibonacci quasiperiodic structure ,multichannel filter
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آدرس
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nanjing university of aeronautics and astronautics, department of applied physics, people’s republic of china, nanjing university of aeronautics and astronautics, department of applied physics, people’s republic of china, nanjing university of aeronautics and astronautics, department of applied physics, people’s republic of china, nanjing university of aeronautics and astronautics, department of applied physics, people’s republic of china, nanjing university of aeronautics and astronautics, department of applied physics, people’s republic of china, nanjing university of aeronautics and astronautics, department of applied physics, people’s republic of china
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Authors
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