Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximation
Abstract We propose a scheme for nonreciprocal light propagation in two coupled cavities system, in which a two-level quantum emitter is coupled to one of the optical microcavities. For the case of parity-time ( $${\mathscr{P}}{\mathscr{T}}$$ P T ) symmetric system (i.e., coupled active-passive cavi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-14397-7 |
| _version_ | 1818835116552617984 |
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| author | Anshou Zheng Guangyong Zhang Hongyun Chen Tingting Mei Jibing Liu |
| author_facet | Anshou Zheng Guangyong Zhang Hongyun Chen Tingting Mei Jibing Liu |
| author_sort | Anshou Zheng |
| collection | DOAJ |
| description | Abstract We propose a scheme for nonreciprocal light propagation in two coupled cavities system, in which a two-level quantum emitter is coupled to one of the optical microcavities. For the case of parity-time ( $${\mathscr{P}}{\mathscr{T}}$$ P T ) symmetric system (i.e., coupled active-passive cavities system), the cavity gain can significantly enhance the optical nonlinearity induced by the interaction between a quantum emitter and cavity field beyond weak-excitation approximation. The increased optical nonlinearity results in the non-lossy nonreciprocal light propagation with high isolation ratio in proper parameters range. In addition, our calculations show that nonreciprocal light propagation will not be affected by the unstable output field intensity caused by optical bistability, and we can even switch directions of nonreciprocal light propagation by appropriately adjusting the system parameters. |
| first_indexed | 2024-12-19T02:45:36Z |
| format | Article |
| id | doaj.art-df1e9a06f66d45dfbff62931b39998dc |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T02:45:36Z |
| publishDate | 2017-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-df1e9a06f66d45dfbff62931b39998dc2022-12-21T20:38:55ZengNature PortfolioScientific Reports2045-23222017-10-01711910.1038/s41598-017-14397-7Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximationAnshou Zheng0Guangyong Zhang1Hongyun Chen2Tingting Mei3Jibing Liu4School of Mathematics and Physics, China University of GeosciencesSchool of Mathematics and Physics, China University of GeosciencesSchool of Mathematics and Physics, China University of GeosciencesSchool of Mathematics and Physics, China University of GeosciencesHubei Key Laboratory of Pollutant Analysis and Reuse Technology and Department of Physics, Hubei Normal UniversityAbstract We propose a scheme for nonreciprocal light propagation in two coupled cavities system, in which a two-level quantum emitter is coupled to one of the optical microcavities. For the case of parity-time ( $${\mathscr{P}}{\mathscr{T}}$$ P T ) symmetric system (i.e., coupled active-passive cavities system), the cavity gain can significantly enhance the optical nonlinearity induced by the interaction between a quantum emitter and cavity field beyond weak-excitation approximation. The increased optical nonlinearity results in the non-lossy nonreciprocal light propagation with high isolation ratio in proper parameters range. In addition, our calculations show that nonreciprocal light propagation will not be affected by the unstable output field intensity caused by optical bistability, and we can even switch directions of nonreciprocal light propagation by appropriately adjusting the system parameters.https://doi.org/10.1038/s41598-017-14397-7 |
| spellingShingle | Anshou Zheng Guangyong Zhang Hongyun Chen Tingting Mei Jibing Liu Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximation Scientific Reports |
| title | Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximation |
| title_full | Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximation |
| title_fullStr | Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximation |
| title_full_unstemmed | Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximation |
| title_short | Nonreciprocal light propagation in coupled microcavities system beyond weak-excitation approximation |
| title_sort | nonreciprocal light propagation in coupled microcavities system beyond weak excitation approximation |
| url | https://doi.org/10.1038/s41598-017-14397-7 |
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