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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| Format: | Article |
| Language: | English |
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Nature Publishing Group
2016-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/ncomms13893 |
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doaj-0c3ead891d6540dd806b9d1e541018ef2021-05-11T11:12:36ZengNature Publishing GroupNature Communications2041-17232016-12-01711910.1038/ncomms13893Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gainsKyoung-Ho Kim0Min-Soo Hwang1Ha-Reem Kim2Jae-Hyuck Choi3You-Shin No4Hong-Gyu Park5Department of Physics, Korea UniversityDepartment of Physics, Korea UniversityDepartment of Physics, Korea UniversityDepartment of Physics, Korea UniversityDepartment of Physics, Korea UniversityDepartment of Physics, Korea UniversityNon-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.https://doi.org/10.1038/ncomms13893 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Kyoung-Ho Kim Min-Soo Hwang Ha-Reem Kim Jae-Hyuck Choi You-Shin No Hong-Gyu Park |
| spellingShingle |
Kyoung-Ho Kim Min-Soo Hwang Ha-Reem Kim Jae-Hyuck Choi You-Shin No Hong-Gyu Park Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains Nature Communications |
| author_facet |
Kyoung-Ho Kim Min-Soo Hwang Ha-Reem Kim Jae-Hyuck Choi You-Shin No Hong-Gyu Park |
| author_sort |
Kyoung-Ho Kim |
| title |
Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains |
| title_short |
Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains |
| title_full |
Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains |
| title_fullStr |
Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains |
| title_full_unstemmed |
Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains |
| title_sort |
direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains |
| publisher |
Nature Publishing Group |
| series |
Nature Communications |
| issn |
2041-1723 |
| publishDate |
2016-12-01 |
| description |
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. |
| url |
https://doi.org/10.1038/ncomms13893 |
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