Gong, Yongkang, Wang, Zuobin, Li, Kang, Uggalla, Leshan, Huang, Jungang, Copner, Nigel, Zhou, Yang, Qiao, Dun and Zhu, Jiuyuan 2017. Highly efficient and broadband mid-infrared metamaterial thermal emitter for optical gas sensing. Optics Letters 42 (21) , pp. 4537-4540. 10.1364/OL.42.004537 |
Abstract
Development of a novel, cost-effective, and highly efficient mid-infrared light source has been identified as a major scientific and technological goal within the area of optical gas sensing. We have proposed and investigated a mid-infrared metamaterial thermal emitter based on micro-structured chromium thin film. The results demonstrate that the proposed thermal light source supports broadband and wide angular absorption of both TE- and TM-polarized light, giving rise to broadband thermal radiation with averaged emissivity of ∼0.94 in a mid-infrared atmospheric window of 8–14 μm. The proposed microphotonic concept provides a promising alternative mid-infrared source and paves the way towards novel optical gas sensing platforms for many applications.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Publisher: | The Optical Society of America |
ISSN: | 0146-9592 |
Last Modified: | 05 Aug 2022 01:46 |
URI: | https://orca.cardiff.ac.uk/id/eprint/119579 |
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