Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widths
The vacuum Rabi splitting of polaritonic eigenmodes in semiconductor microcavities scales with the square root of the oscillator strength, as predicted by the coupled oscillator model and confirmed in many experiments. We show here that the square root law is no more applicable if the Rabi splitting...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac3260 |
| _version_ | 1797749961770663936 |
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| author | Junhui Cao Simone De Liberato Alexey V Kavokin |
| author_facet | Junhui Cao Simone De Liberato Alexey V Kavokin |
| author_sort | Junhui Cao |
| collection | DOAJ |
| description | The vacuum Rabi splitting of polaritonic eigenmodes in semiconductor microcavities scales with the square root of the oscillator strength, as predicted by the coupled oscillator model and confirmed in many experiments. We show here that the square root law is no more applicable if the Rabi splitting becomes comparable or larger than the stop-band width of the Bragg mirrors forming the cavity. Once the oscillator strength becomes large enough, the material hosting excitons hybridises with the quasi-continuum microcavity Bragg modes lying outside of the stop-band, thus forming a novel kind of polaritonic resonance. We study this physics considering both two- and three-dimensional excitonic materials embedded in the microcavity. We highlight the varied phenomenology of those polaritons and develop a theoretical understanding of their most peculiar features. |
| first_indexed | 2024-03-12T16:27:07Z |
| format | Article |
| id | doaj.art-0a9f8ce51c5c4b11a76d89007c1ebc18 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:27:07Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-0a9f8ce51c5c4b11a76d89007c1ebc182023-08-08T15:40:37ZengIOP PublishingNew Journal of Physics1367-26302021-01-01231111301510.1088/1367-2630/ac3260Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widthsJunhui Cao0https://orcid.org/0000-0003-1101-9287Simone De Liberato1Alexey V Kavokin2Westlake University , 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, People’s Republic of China; Institute of Natural Sciences, Westlake Institute for Advanced Study , 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, People’s Republic of ChinaSchool of Physics and Astronomy, University of Southampton , Southampton, SO17 1BJ, United KingdomWestlake University , 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, People’s Republic of China; Institute of Natural Sciences, Westlake Institute for Advanced Study , 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, People’s Republic of ChinaThe vacuum Rabi splitting of polaritonic eigenmodes in semiconductor microcavities scales with the square root of the oscillator strength, as predicted by the coupled oscillator model and confirmed in many experiments. We show here that the square root law is no more applicable if the Rabi splitting becomes comparable or larger than the stop-band width of the Bragg mirrors forming the cavity. Once the oscillator strength becomes large enough, the material hosting excitons hybridises with the quasi-continuum microcavity Bragg modes lying outside of the stop-band, thus forming a novel kind of polaritonic resonance. We study this physics considering both two- and three-dimensional excitonic materials embedded in the microcavity. We highlight the varied phenomenology of those polaritons and develop a theoretical understanding of their most peculiar features.https://doi.org/10.1088/1367-2630/ac3260optical Rabi splittingorganic microcavitystrong light–matter coupling |
| spellingShingle | Junhui Cao Simone De Liberato Alexey V Kavokin Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widths New Journal of Physics optical Rabi splitting organic microcavity strong light–matter coupling |
| title | Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widths |
| title_full | Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widths |
| title_fullStr | Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widths |
| title_full_unstemmed | Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widths |
| title_short | Strong light–matter coupling in microcavities characterised by Rabi-splittings comparable to the Bragg stop-band widths |
| title_sort | strong light matter coupling in microcavities characterised by rabi splittings comparable to the bragg stop band widths |
| topic | optical Rabi splitting organic microcavity strong light–matter coupling |
| url | https://doi.org/10.1088/1367-2630/ac3260 |
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