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  • 标题:An exciton-polariton bolometer for terahertz radiation detection
  • 本地全文:下载
  • 作者:G. G. Paschos ; T. C. H. Liew ; Z. Hatzopoulos
  • 期刊名称:Scientific Reports
  • 电子版ISSN:2045-2322
  • 出版年度:2018
  • 卷号:8
  • 期号:1
  • 页码:10092
  • DOI:10.1038/s41598-018-28197-0
  • 语种:English
  • 出版社:Springer Nature
  • 摘要: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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