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High-order exceptional points in optomechanics

Scientific reports, 2017-06, Vol.7 (1), p.3386-10, Article 3386 [Peer Reviewed Journal]

Copyright Nature Publishing Group Jun 2017 ;The Author(s) 2017 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-017-03546-7 ;PMID: 28611449

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  • Title:
    High-order exceptional points in optomechanics
  • Author: Jing, H ; Özdemir, Ş K ; Lü, H ; Nori, Franco
  • Subjects: Acoustics ; Laboratories ; Optics
  • Is Part Of: Scientific reports, 2017-06, Vol.7 (1), p.3386-10, Article 3386
  • Description: 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.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-017-03546-7
    PMID: 28611449
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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