Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric Lattices
We report on the lasing action in weakly modulated parity-time (PT) symmetric lattices. At the exceptional point in PT-symmetric lattices, the amplitude and phase of unidirectionally scattered waves are independently and flexibly determined by the PT modulations, thus, providing a distinctive route...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8322139/ |
| _version_ | 1818619218986270720 |
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| author | Xue-Feng Zhu Shu-Huan Xie |
| author_facet | Xue-Feng Zhu Shu-Huan Xie |
| author_sort | Xue-Feng Zhu |
| collection | DOAJ |
| description | We report on the lasing action in weakly modulated parity-time (PT) symmetric lattices. At the exceptional point in PT-symmetric lattices, the amplitude and phase of unidirectionally scattered waves are independently and flexibly determined by the PT modulations, thus, providing a distinctive route to construct a lasing mode in finite systems with weakly modulated structures. It is revealed that the resonant feedback mechanism plays a crucial role in building up the lasing action. Our finding would enrich the singularity dynamics in the weakly modulated PT systems. |
| first_indexed | 2024-12-16T17:34:00Z |
| format | Article |
| id | doaj.art-4e68720c652648d987622de218fbb709 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-16T17:34:00Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-4e68720c652648d987622de218fbb7092022-12-21T22:22:51ZengIEEEIEEE Photonics Journal1943-06552018-01-011021610.1109/JPHOT.2018.28172398322139Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric LatticesXue-Feng Zhu0https://orcid.org/0000-0002-1308-0834Shu-Huan Xie1School of Physics and Innovation Institute, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Physics and Innovation Institute, Huazhong University of Science and Technology, Wuhan, ChinaWe report on the lasing action in weakly modulated parity-time (PT) symmetric lattices. At the exceptional point in PT-symmetric lattices, the amplitude and phase of unidirectionally scattered waves are independently and flexibly determined by the PT modulations, thus, providing a distinctive route to construct a lasing mode in finite systems with weakly modulated structures. It is revealed that the resonant feedback mechanism plays a crucial role in building up the lasing action. Our finding would enrich the singularity dynamics in the weakly modulated PT systems.https://ieeexplore.ieee.org/document/8322139/Parity-time symmetrylasingresonant feedback |
| spellingShingle | Xue-Feng Zhu Shu-Huan Xie Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric Lattices IEEE Photonics Journal Parity-time symmetry lasing resonant feedback |
| title | Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric Lattices |
| title_full | Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric Lattices |
| title_fullStr | Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric Lattices |
| title_full_unstemmed | Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric Lattices |
| title_short | Lasing With Resonant Feedback in Weakly Modulated Parity-Time Symmetric Lattices |
| title_sort | lasing with resonant feedback in weakly modulated parity time symmetric lattices |
| topic | Parity-time symmetry lasing resonant feedback |
| url | https://ieeexplore.ieee.org/document/8322139/ |
| work_keys_str_mv | AT xuefengzhu lasingwithresonantfeedbackinweaklymodulatedparitytimesymmetriclattices AT shuhuanxie lasingwithresonantfeedbackinweaklymodulatedparitytimesymmetriclattices |