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Metamaterial perfect absorber-enhanced plasmonic photo-thermoelectric conversion

Metamaterial perfect absorber-enhanced plasmonic photo-thermoelectric conversion
Metamaterial perfect absorber-enhanced plasmonic photo-thermoelectric conversion

Perfect absorption is key to achieving high responsivity of a thin-film photodetector. Here, we report the effect of a metamaterial perfect absorber (MPA) on the external quantum efficiency (EQE) of plasmonic photo-thermoeletric conversion, which is a photodetection method based on local heating. The photodetector with a MPA shows strong absorption, resulting in EQE about three times of that of a control device. Plasmon-induced local temperature rise contributes to the photodetection, and its amplitude is examined both experimentally and numerically.

Horikawa, Mahiro
b75765af-55b7-420a-b4de-836974525972
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86
Kubo, Wakana
453b4e5c-4481-48b5-8f84-ca30ca2224e4
Horikawa, Mahiro
b75765af-55b7-420a-b4de-836974525972
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86
Kubo, Wakana
453b4e5c-4481-48b5-8f84-ca30ca2224e4

Horikawa, Mahiro, Fang, Xu and Kubo, Wakana (2020) Metamaterial perfect absorber-enhanced plasmonic photo-thermoelectric conversion. Applied Physics Express, 13 (8), [082006]. (doi:10.35848/1882-0786/aba56d).

Record type: Article

Abstract

Perfect absorption is key to achieving high responsivity of a thin-film photodetector. Here, we report the effect of a metamaterial perfect absorber (MPA) on the external quantum efficiency (EQE) of plasmonic photo-thermoeletric conversion, which is a photodetection method based on local heating. The photodetector with a MPA shows strong absorption, resulting in EQE about three times of that of a control device. Plasmon-induced local temperature rise contributes to the photodetection, and its amplitude is examined both experimentally and numerically.

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Metamaterial perfect absorber-enhanced plasmonic photo-thermoelectric conversion_XF - Accepted Manuscript
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Accepted/In Press date: 12 July 2020
Published date: 1 August 2020
Additional Information: Publisher Copyright: © 2020 The Japan Society of Applied Physics.
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Identifiers

Local EPrints ID: 443872
URI: http://eprints.soton.ac.uk/id/eprint/443872
DOI: doi:10.35848/1882-0786/aba56d
PURE UUID: 2e0625d6-8e39-4798-929d-4e7f95ba3c3b
ORCID for Xu Fang: ORCID iD orcid.org/0000-0003-1735-2654

Catalogue record

Date deposited: 15 Sep 2020 16:34
Last modified: 06 Jun 2024 04:16

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Contributors

Author: Mahiro Horikawa
Author: Xu Fang ORCID iD
Author: Wakana Kubo

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