Broadband single-channel coherent perfect absorption with a perfect magnetic mirror

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Two-channel coherent perfect absorption (CPA) enables absorption modulation as well as perfect absorption in a very simple way. However, because of its narrow and discrete operable wavelength range, the CPA has been limited to specific applications. In this work, we theoretically and experimentally demonstrate broadband single-channel CPA operable from the visible to near-infrared wavelengths, using an ultrathin absorbing material on a pseudo perfect magnetic mirror. Our simple yet effective method can be applied to various applications such as solar cells, thermophotovoltaics, and stealth technology.
Publisher
OSA
Issue Date
2020-11
Language
English
Article Type
Article
Citation

OPTICS EXPRESS, v.28, no.23, pp.35108 - 35117

ISSN
1094-4087
DOI
10.1364/OE.408494
URI
http://hdl.handle.net/10203/279159
Appears in Collection
EE-Journal Papers(저널논문)
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