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arXiv 1306.5543quant-ph
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双动镜非线性光机系统中电磁感应透明的控制与操纵

Control and manipulation of electromagentically induced transparency in a nonlinear optomechanical system with two movable mirrors

S. Shahidani, M. H. Naderi, M. Soltanolkotabi

摘要:

我们考虑一个由两个移动反射镜组成的光机械腔,其中包含一个克尔下转换非线性晶体。结果表明,两个机械振荡器的相干振荡可以导致电磁感应透明(EIT)共振的分裂,并在透明窗口内出现吸收峰。在这种结构中,相干诱导的EIT分裂类似于在原子的λ型三能级系统中用射频或微波场驱动超精细跃迁。此外,我们表明,存在的非线性提供了一个额外的灵活性,调整的透明度窗口的宽度。一个额外的机械模式和非线性晶体的组合提出了新的可能性,用于调整共振频率,宽度和光谱位置的EIT窗口,以及增强的吸收峰内的透明度窗口。

英文摘要:

We consider an optomechanical cavity made by two moving mirrors which contains a Kerr-down conversion nonlinear crystal. We show that the coherent oscillations of the two mechanical oscil- lators can lead to splitting in the electromagnetically induced transparency (EIT) resonance, and appearance of an absorption peak within the transparency window. In this configuration the coher- ent induced splitting of EIT is similar to driving a hyperfine transition in an atomic Lambda-type three-level system by a radio-frequency or microwave field. Also, we show that the presence of non- linearity provides an additional flexibility for adjusting the width of the transparency windows. The combination of an additional mechanical mode and the nonlinear crystal suggests new possibilities for adjusting the resonance frequency, the width and the spectral positions of the EIT windows as well as the enhancement of the absorption peak within the transparency window.

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