Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains
Non-Hermitian optical systems have been shown to sustain lasing when they go from a PT-symmetric to a PT-symmetry-broken phase. Here, Kimet al. study this phase transition of lasing modes in partially graphene-covered coupled microcavities and show tuning of an exceptional point.
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| Autores principales: | , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2016
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/0c3ead891d6540dd806b9d1e541018ef |
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| Sumario: | Non-Hermitian optical systems have been shown to sustain lasing when they go from a PT-symmetric to a PT-symmetry-broken phase. Here, Kimet al. study this phase transition of lasing modes in partially graphene-covered coupled microcavities and show tuning of an exceptional point. |
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