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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 propag...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6031685/ https://www.ncbi.nlm.nih.gov/pubmed/29973614 http://dx.doi.org/10.1038/s41598-018-28197-0 |
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author | Paschos, G. G. Liew, T. C. H. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. |
author_facet | Paschos, G. G. Liew, T. C. H. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. |
author_sort | Paschos, G. G. |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-6031685 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-60316852018-07-12 An exciton-polariton bolometer for terahertz radiation detection Paschos, G. G. Liew, T. C. H. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. Sci Rep Article 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. Nature Publishing Group UK 2018-07-04 /pmc/articles/PMC6031685/ /pubmed/29973614 http://dx.doi.org/10.1038/s41598-018-28197-0 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Paschos, G. G. Liew, T. C. H. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. An exciton-polariton bolometer for terahertz radiation detection |
title | An exciton-polariton bolometer for terahertz radiation detection |
title_full | An exciton-polariton bolometer for terahertz radiation detection |
title_fullStr | An exciton-polariton bolometer for terahertz radiation detection |
title_full_unstemmed | An exciton-polariton bolometer for terahertz radiation detection |
title_short | An exciton-polariton bolometer for terahertz radiation detection |
title_sort | exciton-polariton bolometer for terahertz radiation detection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6031685/ https://www.ncbi.nlm.nih.gov/pubmed/29973614 http://dx.doi.org/10.1038/s41598-018-28197-0 |
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