Tunable fast and slow light in a hybrid optomechanical system
Tunable fast and slow light in a hybrid optomechanical system
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DOI：
10.1103/physreva.92.023846
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发表时间：
2015-08-24
影响因子：
2.9
通讯作者：
Saif, Farhan
中科院分区：
文献类型：
--
作者：
Akram, M. Javed;Khan, M. Miskeen;Saif, Farhan
我们解释了探测场的透射谱的影响下，在一个混合光机械系统，由一个光学腔，机械谐振器，和一个二能级原子的强泵浦场。我们显示快速（超光速）和缓慢（亚光速）的光效应的混合系统中的传输探测场的适当的参数制度。对于实验可达域，我们发现，在混合系统中的额外的原子-光场耦合可以进一步增强单光机耦合获得的快光效应。此外，我们还报道了通过分别调节反斯托克斯和斯托克斯边带的原子失谐量，从快光到慢光的可调谐开关的存在，Δ（a）= +omega（m）和-omega（m）。所报道的特性在最先进的实验室实验中是可实现的。
We explain the probe field transmission spectrum under the influence of a strong pump field in a hybrid optomechanical system, composed of an optical cavity, a mechanical resonator, and a two-level atom. We show fast (superluminal) and slow (subluminal) light effects of the transmitted probe field in the hybrid system for suitable parametric regimes. For the experimental accessible domain, we find that the fast light effect obtained for the single optomechanical coupling can further be enhanced with the additional atom-field coupling in the hybrid system. Furthermore, we report the existence of a tunable switch from fast to slow light by adjusting the atomic detuning with the anti-Stokes and Stokes sidebands, respectively, as Delta(a) = +omega(m) and -omega(m). The reported characteristics are realizable in state-of-the-art laboratory experiments.