Graphene metamaterial for high absorption of unpolarized light over more than three octaves of bandwidth

Han Lin; Björn C. P. Sturmberg; Keng-Te Lin; Yunyi Yang; Xiaorui Zheng; Teck K. Chong; C. Martijn de Sterke; Baohua Jia

2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
OSA Technical Digest (Optica Publishing Group, 2019),
paper jsiii_2_2

Graphene metamaterial for high absorption of unpolarized light over more than three octaves of bandwidth

Han Lin, Björn C. P. Sturmberg, Keng-Te Lin, Yunyi Yang, Xiaorui Zheng, Teck K. Chong, C. Martijn de Sterke, and Baohua Jia

European Quantum Electronics Conference 2019

Munich Germany
23–27 June 2019
ISBN: 978-1-7281-0469-0

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Thermo-photonics, materials and energy efficiency (jsiii_2)

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H. Lin, B. C. P. Sturmberg, K. Lin, Y. Yang, X. Zheng, T. K. Chong, C. M. de Sterke, and B. Jia, "Graphene metamaterial for high absorption of unpolarized light over more than three octaves of bandwidth," in 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, OSA Technical Digest (Optica Publishing Group, 2019), paper jsiii_2_2.

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Abstract

Strong broadband absorption of unpolarized light in a large-area, thin film is important for photovoltaics, photodetectors, thermal emitters [1] and optical modulators. Graphene is a suitable material for absorbers, as its absorption bandwidth is very large, but a single layer of graphene absorbs only 2.3% [2].

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