Abstract

We have fabricated a parallel slab of nematic liquid crystal with hybrid alignment that provides “longitudinal” gradient of refractive index for the extraordinary polarized beam. This in turn generates continuously changing angular separation between ordinary and extraordinary beams while propagating inside the slab, like the optical mirage effect. For the moment the output separation angle is not large (below 1°), but it can be further optimized to obtain larger separation angles and consequently more effective electrical control.

中文翻译：

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可变梯度折射率向列液晶结构中的激光束控制

摘要

我们制造了具有混合取向的向列液晶的平行平板，可为非常规偏振光束提供折射率的“纵向”梯度。反过来，当在平板内部传播时，就像光学海市effect楼效应一样，在普通光束和异常光束之间会产生连续变化的角度间隔。目前，输出分离角不大（小于1°），但是可以进一步优化以获得更大的分离角，从而实现更有效的电气控制。