Frequency-selective nanostructured plasmonic absorber by highly lossy interface mode

Antony Davies, L Wang, T Duan, Y Gong, K Li, J Huang, N J Copner

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

Crynodeb

We report on an existence of a highly lossy interface mode (HLIM) in a designed plasmonic nanostructure for perfect absorption of the incident optical waves. Interactions between the single thin- metallic-layer (TML) and slits arrays for excitation of the HLIM in the proposed plasmonic absorber are investigated, and eigenfrequency formula for the HLIM is derived. Analytical and numerical results show that the HLIM is frequency-selective, opens a narrow and steep absorption band in photonic stopband of the slits arrays. Due to the HLIM lossy characteristic, surface plasmon polaritons are signi¯cantly trapped at the TML interface with absorption close to 100%.
Iaith wreiddiolSaesneg
Tudalennau (o-i)511 - 525
Nifer y tudalennau14
CyfnodolynProgess in Electromagnetics Research
Cyfrol124
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 13 Chwef 2012

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