Perfect narrow-band absorber based on a monolayer of metallodielectric microspheres

被引：13

作者：

Dyachenko, P. N. ^{[1
]}

Petrov, A. Yu. ^{[1
]}

Eich, M. ^{[1
]}

机构：

[1] Hamburg Univ Technol, Inst Opt & Elect Mat, D-21073 Hamburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 21期

关键词：

D O I：

10.1063/1.4832071

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied how two-dimensional arrays of metallodielectric core-shell microspheres on a metal substrate can efficiently absorb infrared electromagnetic radiation in a narrow wavelength range under normal incidence. Our simulations indicate that perfect absorption efficiencies can be achieved for resonance wavelengths. The influence of core-shell microspheres geometry and lattice geometry is studied on absorption properties. For wavelength from 1.2 mu m to 2.6 mu m, an optimal combination of sphere and core radius was obtained to provide perfect absorption which can be wavelength adjusted. (C) 2013 AIP Publishing LLC.

引用

页数：4

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