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An exciton-polariton bolometer for terahertz radiation detection

An exciton-polariton bolometer for terahertz radiation detection
An exciton-polariton bolometer for terahertz radiation detection

We experimentally investigate the feasibility of a bolometric device based on exciton-polaritons. Initial measurements presented in this work show that heating - via thermal expansion and bandgap renormalization - modifies the exciton-polariton propagation wavevector making exciton-polaritons propagation remarkably sensitive to thermal variations. By theoretical simulations we predict that using a single layer graphene absorbing layer, a THz bolometric sensor can be realized by a simple exciton-polariton ring interferometer device. The predicted sensitivity is comparable to presently existing THz bolometric devices with the convenience of being a device that inherently produces an optical signal output.

2045-2322
Paschos, G.G.
3feb0958-a94d-4b00-9a09-8c85a01749bb
Liew, T.C.H.
293a2372-69e9-4ca4-b616-c8694c9a3812
Hatzopoulos, Z.
4ee394c3-9399-41e2-ab9b-2ddab346bd41
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Savvidis, P.G.
9922c8cf-9504-4949-822c-767cdcad58be
Deligeorgis, G.
92bb5de0-70b1-446d-8506-566ef52de184
Paschos, G.G.
3feb0958-a94d-4b00-9a09-8c85a01749bb
Liew, T.C.H.
293a2372-69e9-4ca4-b616-c8694c9a3812
Hatzopoulos, Z.
4ee394c3-9399-41e2-ab9b-2ddab346bd41
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Savvidis, P.G.
9922c8cf-9504-4949-822c-767cdcad58be
Deligeorgis, G.
92bb5de0-70b1-446d-8506-566ef52de184

Paschos, G.G., Liew, T.C.H., Hatzopoulos, Z., Kavokin, A.V., Savvidis, P.G. and Deligeorgis, G. (2018) An exciton-polariton bolometer for terahertz radiation detection. Scientific Reports, 8 (1), [10092]. (doi:10.1038/s41598-018-28197-0).

Record type: Article

Abstract

We experimentally investigate the feasibility of a bolometric device based on exciton-polaritons. Initial measurements presented in this work show that heating - via thermal expansion and bandgap renormalization - modifies the exciton-polariton propagation wavevector making exciton-polaritons propagation remarkably sensitive to thermal variations. By theoretical simulations we predict that using a single layer graphene absorbing layer, a THz bolometric sensor can be realized by a simple exciton-polariton ring interferometer device. The predicted sensitivity is comparable to presently existing THz bolometric devices with the convenience of being a device that inherently produces an optical signal output.

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s41598-018-28197-0 - Version of Record
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More information

Accepted/In Press date: 18 June 2018
e-pub ahead of print date: 4 July 2018
Published date: 1 December 2018

Identifiers

Local EPrints ID: 422611
URI: http://eprints.soton.ac.uk/id/eprint/422611
ISSN: 2045-2322
PURE UUID: 3254bb73-480e-4f30-8bd8-caf86518e39a

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Date deposited: 26 Jul 2018 16:30
Last modified: 25 Nov 2021 23:18

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Contributors

Author: G.G. Paschos
Author: T.C.H. Liew
Author: Z. Hatzopoulos
Author: A.V. Kavokin
Author: P.G. Savvidis
Author: G. Deligeorgis

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