High-order exceptional points in optomechanics

Abstract We study mechanical cooling in systems of coupled passive (lossy) and active (with gain) optical resonators. We find that for a driving laser which is red-detuned with respect to the cavity frequency, the supermode structure of the system is radically changed, featuring the emergence of gen...

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Autores principales: H. Jing, Ş. K. Özdemir, H. Lü, Franco Nori
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Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/10f592a0988148838a7cbd1d671ea517
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spelling oai:doaj.org-article:10f592a0988148838a7cbd1d671ea5172021-12-02T12:32:34ZHigh-order exceptional points in optomechanics10.1038/s41598-017-03546-72045-2322https://doaj.org/article/10f592a0988148838a7cbd1d671ea5172017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03546-7https://doaj.org/toc/2045-2322Abstract We study mechanical cooling in systems of coupled passive (lossy) and active (with gain) optical resonators. We find that for a driving laser which is red-detuned with respect to the cavity frequency, the supermode structure of the system is radically changed, featuring the emergence of genuine high-order exceptional points. This in turn leads to giant enhancement of both the mechanical damping and the spring stiffness, facilitating low-power mechanical cooling in the vicinity of gain-loss balance. This opens up new avenues of steering micromechanical devices with exceptional points beyond the lowest-order two.H. JingŞ. K. ÖzdemirH. LüFranco NoriNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
H. Jing
Ş. K. Özdemir
H. Lü
Franco Nori
High-order exceptional points in optomechanics
description Abstract We study mechanical cooling in systems of coupled passive (lossy) and active (with gain) optical resonators. We find that for a driving laser which is red-detuned with respect to the cavity frequency, the supermode structure of the system is radically changed, featuring the emergence of genuine high-order exceptional points. This in turn leads to giant enhancement of both the mechanical damping and the spring stiffness, facilitating low-power mechanical cooling in the vicinity of gain-loss balance. This opens up new avenues of steering micromechanical devices with exceptional points beyond the lowest-order two.
format article
author H. Jing
Ş. K. Özdemir
H. Lü
Franco Nori
author_facet H. Jing
Ş. K. Özdemir
H. Lü
Franco Nori
author_sort H. Jing
title High-order exceptional points in optomechanics
title_short High-order exceptional points in optomechanics
title_full High-order exceptional points in optomechanics
title_fullStr High-order exceptional points in optomechanics
title_full_unstemmed High-order exceptional points in optomechanics
title_sort high-order exceptional points in optomechanics
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/10f592a0988148838a7cbd1d671ea517
work_keys_str_mv AT hjing highorderexceptionalpointsinoptomechanics
AT skozdemir highorderexceptionalpointsinoptomechanics
AT hlu highorderexceptionalpointsinoptomechanics
AT franconori highorderexceptionalpointsinoptomechanics
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