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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2017
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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) |
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Medicine R Science Q H. Jing Ş. K. Özdemir H. Lü Franco Nori High-order exceptional points in optomechanics |
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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 |
_version_ |
1718394021693358080 |