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:	Kyoung-Ho Kim, Min-Soo Hwang, Ha-Reem Kim, Jae-Hyuck Choi, You-Shin No, Hong-Gyu Park
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2016
Materias:	Science Q
Acceso en línea:	https://doaj.org/article/0c3ead891d6540dd806b9d1e541018ef
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spelling	oai:doaj.org-article:0c3ead891d6540dd806b9d1e541018ef2021-12-02T15:34:59ZDirect observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains10.1038/ncomms138932041-1723https://doaj.org/article/0c3ead891d6540dd806b9d1e541018ef2016-12-01T00:00:00Zhttps://doi.org/10.1038/ncomms13893https://doaj.org/toc/2041-1723Non-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.Kyoung-Ho KimMin-Soo HwangHa-Reem KimJae-Hyuck ChoiYou-Shin NoHong-Gyu ParkNature PortfolioarticleScienceQENNature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q 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
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.
format	article
author	Kyoung-Ho Kim Min-Soo Hwang Ha-Reem Kim Jae-Hyuck Choi You-Shin No Hong-Gyu Park
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 Portfolio
publishDate	2016
url	https://doaj.org/article/0c3ead891d6540dd806b9d1e541018ef
work_keys_str_mv	AT kyounghokim directobservationofexceptionalpointsincoupledphotoniccrystallaserswithasymmetricopticalgains AT minsoohwang directobservationofexceptionalpointsincoupledphotoniccrystallaserswithasymmetricopticalgains AT hareemkim directobservationofexceptionalpointsincoupledphotoniccrystallaserswithasymmetricopticalgains AT jaehyuckchoi directobservationofexceptionalpointsincoupledphotoniccrystallaserswithasymmetricopticalgains AT youshinno directobservationofexceptionalpointsincoupledphotoniccrystallaserswithasymmetricopticalgains AT honggyupark directobservationofexceptionalpointsincoupledphotoniccrystallaserswithasymmetricopticalgains
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Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains

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