Wide-angle polarization independent infrared broadband absorbers based on metallic multi-sized disk arrays

被引：212

作者：

Cheng, Cheng-Wen ^{[1
,2
,3
]}

Abbas, Mohammed Nadhim ^{[2
]}

Chiu, Chao-Wei ^{[2
]}

Lai, Kun-Ting ^{[2
,4
]}

Shih, Min-Hsiung ^{[2
]}

Chang, Yia-Chung ^{[2
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[2] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan

[3] Acad Sinica, Nano Sci & Technol Program, Taiwan Int Grad Program, Taipei 11529, Taiwan

[4] Natl Chiao Tung Univ, Inst Imaging & Biomed Photon, Tainan 71150, Taiwan

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 09期

关键词：

DESIGN;

D O I：

10.1364/OE.20.010376

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two-dimensional metallic broadband absorbers on a SiO2/Ag/Si substrate were experimentally studied. The absorptivity of such structure can be increased by tailoring the ratio of disk size to the unit cell area. The metallic disk exhibits a localized surface plasmon polariton (LSPP) mode for both TE and TM polarizations. A broadband thermal emitter can be realized because the LSPP mode is independent of the periodicities. By manipulating the ratios and disk sizes, a high-performance, wide-angle, polarization-independent dual band absorber was experimentally achieved. The results demonstrated a substantial flexibility in absorber designs for applications in thermal photovoltaics, sensors, and camouflage. (C) 2012 Optical Society of America

引用

页码：10376 / 10381

页数：6

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