论文标题
双膜活性 - 充气光学腔的光学响应
Optical response of a dual membrane active-passive optomechanical cavity
论文作者
论文摘要
我们研究了双膜活性 - 孔隙腔，每个机械膜通过两频过程单独二次耦合到被动和活性腔。由于在二次耦合的光力系统均值近似失败的情况下，完全分析了系统，因此我们从平衡方法中切换到了更概括的均衡方法，即Keldysh Green的功能方法。我们使用预定的全智障格林功能来计算传输速率，然后数值检查各种参数对传输系数的影响，并详细讨论其背后的特征和物理。根据光学响应能力，我们进一步扩展了对快速和慢光现象的研究。结果表明，我们提出的系统不仅可以在正确选择腔参数的情况下实现超快速的光/超慢光光，而且可以实现快速和慢光之间的转换，反之亦然。
We investigate a dual membrane active-passive cavity where each mechanical membrane individually quadratically coupled to passive and active cavities via two-phonon process. Due to the fact that in the quadratically coupled optomechanical system mean-field approximation fails, hence to analyze the system completely, we switch to a more generalized out of equilibrium approach, namely Keldysh Green's functional approach. We calculate transmission rate using predetermined full retarded Green's function, and then numerically examine the effect of the various parameters on the transmission coefficient and discuss the features and physics behind them in detail. On the basis of the optical responsivity we further extend our study of fast and slow light phenomenon. The results show that our proposed system can not only realize ultra-fast light/ultra-slow light under proper choice of cavity parameters, but realization of the conversion between fast and slow light and vice versa.
