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all-metal resonant metamaterials for one-, two-, three-band perfect light absorbers and sensors
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نویسنده
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liu xiaoshan ,fu guolan ,zhan xuefeng ,liu zhengqi
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منبع
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plasmonics - 2019 - دوره : 14 - شماره : 4 - صفحه:967 -971
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چکیده
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Perfect light absorption is achieved in all-metal resonant metamaterials. the maximal absorption is up to 99.2% and the spectral bandwidth is down to 24 nm. moreover, a tunable absorption spectrum with one-, two-, three-band light absorption can be obtained in the visible frequency range by utilizing a controllable structural geometry for this all-metal resonant metamaterial platform. the localized surface plasmons of metallic resonators and their hybrid coupling effects are the main contributions for the observed perfect absorption. particularly, high-performance refractive index sensing with single or multiple detection wavelengths is achieved based on this novel absorber scheme.
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کلیدواژه
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metamaterials ,perfect absorber ,all-metal ,refractive index sensing
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آدرس
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jiangxi normal university, college of physics and communication electronics, jiangxi key laboratory of nanomaterials and sensors, provincial key laboratory of optoelectronic and telecommunication, china, jiangxi normal university, college of physics and communication electronics, jiangxi key laboratory of nanomaterials and sensors, provincial key laboratory of optoelectronic and telecommunication, china, jiangxi normal university, college of physics and communication electronics, jiangxi key laboratory of nanomaterials and sensors, provincial key laboratory of optoelectronic and telecommunication, china, jiangxi normal university, college of physics and communication electronics, jiangxi key laboratory of nanomaterials and sensors, provincial key laboratory of optoelectronic and telecommunication, china
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Authors
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