外文题目: High-order exceptional points in optomechanics
作者: Jing, H.; Ozdemir, S. K.; Lu, H.; Nori, Franco
刊名: Sci Rep
年: 2017 卷: 7 文章编号：3386
英文关键词:

COHERENT POPULATION TRANSFER; PARITY-TIME SYMMETRY; COUPLED MICRORESONATORS; MECHANICAL RESONATOR; INDUCED TRANSPARENCY; STATES; SYSTEM; LASER
英文摘要:
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.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1038/s41598-017-03546-7


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