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...
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sg-ntu-dr.10356-868062023-02-28T19:34:15Z An exciton-polariton bolometer for terahertz radiation detection Paschos, G. G. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. Liew, Timothy Chi Hin School of Physical and Mathematical Sciences Radiation Detection Exciton-polariton Bolometer 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. MOE (Min. of Education, S’pore) Published version 2018-07-27T08:08:25Z 2019-12-06T16:29:19Z 2018-07-27T08:08:25Z 2019-12-06T16:29:19Z 2018 Journal Article Paschos, G. G., Liew, T. C. H., Hatzopoulos, Z., Kavokin, A. V., Savvidis, P. G., & Deligeorgis, G. (2018). An exciton-polariton bolometer for terahertz radiation detection. Scientific Reports, 8(1), 10092-. 2045-2322 https://hdl.handle.net/10356/86806 http://hdl.handle.net/10220/45331 10.1038/s41598-018-28197-0 en Scientific Reports © 2018 The Author(s). 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/. 9 p. application/pdf |
| institution |
Nanyang Technological University |
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NTU Library |
| continent |
Asia |
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Singapore Singapore |
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NTU Library |
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DR-NTU |
| language |
English |
| topic |
Radiation Detection Exciton-polariton Bolometer |
| spellingShingle |
Radiation Detection Exciton-polariton Bolometer Paschos, G. G. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. Liew, Timothy Chi Hin An exciton-polariton bolometer for terahertz radiation detection |
| 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. |
| author2 |
School of Physical and Mathematical Sciences |
| author_facet |
School of Physical and Mathematical Sciences Paschos, G. G. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. Liew, Timothy Chi Hin |
| format |
Article |
| author |
Paschos, G. G. Hatzopoulos, Z. Kavokin, A. V. Savvidis, P. G. Deligeorgis, G. Liew, Timothy Chi Hin |
| author_sort |
Paschos, G. G. |
| title |
An exciton-polariton bolometer for terahertz radiation detection |
| title_short |
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_sort |
exciton-polariton bolometer for terahertz radiation detection |
| publishDate |
2018 |
| url |
https://hdl.handle.net/10356/86806 http://hdl.handle.net/10220/45331 |
| _version_ |
1759856539825340416 |