We theoretically explore optical bistability for the possible signature of all-optical switching and their performance in a hybrid quantum optomechanical system comprising of two semiconductor microcavities coupled optically. One of the cavity is driven by an external amplitude-modulated pump laser while the second cavity, which contains a quantum dot (QD), is indirectly driven by light transmitted from the first cavity and a transverse optical field. The generated bistable behavior due to optomechanical nonlinearity shows a typical optical switching behavior and it can be controlled by changing the laser power, QD cavity coupling, modulating amplitude/frequency and the optomechanical coupling. A clear signature of energy exchange between the mechanical and optical modes is visible from the mechanical displacement spectrum. These results suggest that the present system can be used in sensitive optical switches and optical sensors.

中文翻译：

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包含由调幅场驱动的单个量子点的混合光机电半导体微腔中的可控双稳态光开关和常模分裂

我们从理论上探讨了光学双稳性，以了解全光切换的可能特征及其在包含两个光学耦合的半导体微腔的混合量子光机械系统中的性能。其中一个腔是由外部振幅调制泵浦激光器驱动的，而包含量子点（QD）的第二腔是由从第一腔传输的光和横向光场间接驱动的。由于光机械非线性而产生的双稳态行为表现出典型的光学开关行为，可以通过改变激光功率，QD腔耦合，调制幅度/频率以及光机械耦合来控制它。从机械位移光谱中可以清楚地看到机械和光学模式之间的能量交换特征。