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Proceedings Paper

High absorption thin-film absorber with gold nanorod arrays
Author(s): Guangyao Su; Deng Xiao; Chuanhong Liu; Fangwang Gou; Zhaoyu Zhang
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Paper Abstract

Thin film absorber structure is becoming one of the hot topics recently for its various sub-wavelength applications such as photo detector, thermo photovoltaic cells, thin-film thermal emitters, and multi-color filters. In this work, we extended the design principles of single band absorbers to tri-band absorbers based on single nanorod unit which exhibits localized surface plasmon resonances (LSPs). By varying the geometric parameters of nanorod arrays, the absorption spectrum can be tailored. Detailed study was carried out by using finite difference time domain (FDTD) method to reveal the mechanism of high absorption. Even broader absorption could be realized based on this work.

Paper Details

Date Published: 25 February 2014
PDF: 6 pages
Proc. SPIE 8994, Photonic and Phononic Properties of Engineered Nanostructures IV, 899423 (25 February 2014); doi: 10.1117/12.2041237
Show Author Affiliations
Guangyao Su, Peking Univ. (China)
Deng Xiao, Peking Univ. (China)
Chuanhong Liu, Peking Univ. (China)
Fangwang Gou, Peking Univ. (China)
Zhaoyu Zhang, Peking Univ. (China)

Published in SPIE Proceedings Vol. 8994:
Photonic and Phononic Properties of Engineered Nanostructures IV
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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