Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains
Kyoung-Ho Kim, Min-Soo Hwang, Ha-Reem Kim and 3 more
Nature Communications · 2016
doi:10.1038/ncomms13893 (opens in a new tab)
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Abstract
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.
Abstract licence: CC BY-NC-ND
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