Department of Physics, Florida International University, Miami, Florida 33199-0001, USA.
Opt Lett. 2010 Feb 1;35(3):303-5. doi: 10.1364/OL.35.000303.
I analyze a scheme that is capable of producing large Kerr nonlinearities on cavity-atom polaritons in a cavity quantum electrodynamics system consisting of multiple three-level atoms confined in a cavity mode. A weak control laser coupled to the atoms from free space induces destructive quantum interference in the polariton excitation of the coupled cavity-atom system and creates large Kerr nonlinearities on the intra-cavity light field. The scheme can be used for optical switching or cross-phase modulation of the cavity-atom polariton at ultralow light levels.
我分析了一个方案，该方案能够在由多个限制在腔模中的三能级原子组成的腔量子电动力学系统中产生腔-原子极化激元的大克尔非线性。从自由空间耦合到原子的弱控制激光在耦合腔-原子系统的极化激元激发中诱导破坏性量子干涉，并在腔内光场中产生大克尔非线性。该方案可用于超低光水平下的腔-原子极化激元的光开关或交叉相位调制。
