Optomechanically-induced transparency in parity-time-symmetric microresonators.
Optomechanically-induced transparency in parity-time-symmetric microresonators.
复制标题
奇偶时间对称微谐振器中光机械诱导的透明度
DOI：
10.1038/srep09663
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发表时间：
2015-06-12
影响因子：
4.6
通讯作者：
Nori F
中科院分区：
文献类型：
--
作者：
Jing H;Özdemir ŞK;Geng Z;Zhang J;Lü XY;Peng B;Yang L;Nori F
Optomechanically-induced transparency (OMIT) and the associated slowing of light provide the basis for storing photons in nanoscale devices. Here we study OMIT in parity-time (PT)-symmetric microresonators with a tunable gain-to-loss ratio. This system features a sideband-reversed, non-amplifying transparency , i.e., an inverted-OMIT. When the gain-to-loss ratio is varied, the system exhibits a transition from aPT-symmetric phase to a broken-PT-symmetric phase. ThisPT-phase transition results in the reversal of the pump and gain dependence of the transmission rates. Moreover, we show that by tuning the pump power at a fixed gain-to-loss ratio, or the gain-to-loss ratio at a fixed pump power, one can switch from slow to fast light and vice versa. These findings provide new tools for controlling light propagation using nanofabricated phononic devices.
