利用四波混频实现间接精确角度控制
Indirect precise angular control using four-wave mixing
摘要：
在这里，我们展示了使用四波混频（FWM）过程的间接精确角度控制。这是在热的85Rb原子系综的M型配置中与轨道角动量（OAM）叠加的光进行的。在四波混频光和环形输入信号下观察到齿轮状干涉图样。齿轮可以旋转，并通过改变泵浦激光器的偏振来控制。我们的实验结果是基于非线性相干相互作用的图像处理和精确的角度控制的应用。
英文摘要：
Here we show indirect precise angular control using a four-wave mixing (FWM) process. This was performed with a superposition of light with orbital angular momentum (OAM) in an M-Type configuration of a hot 85Rb atomic ensemble. A gear-shaped interference pattern is observed at FWM light with a donut-shaped input signal. The gear could be rotated and is controlled through the change of the polarization of the pump laser. Our experimental results that are based on nonlinear coherent interactions have applications in image processing and precise angular control.
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