Highly directional and lossless surface wave has significant potential applications in the two-dimensional photonic circuits and devices. Here we experimentally demonstrate a selective Dyakonov surface wave coupling at the interface between a transparent polycarbonate material and nematic liquid crystal 5CB. By controlling the anisotropy of the nematic liquid crystal with an applied magnetic field, a single ray at a certain incident angle from a diverged incident beam can be selectively coupled into surface wave. The implementation of this property may lead to a new generation of on-chip integrated optics and two-dimensional photonic devices. {I.

中文翻译：

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Dyakonov表面波在基于液晶的界面上的可控选择性耦合

高方向性和无损表面波在二维光子电路和器件中具有重要的潜在应用。在这里，我们通过实验证明了透明聚碳酸酯材料与向列液晶5CB之间的界面处的选择性Dyakonov表面波耦合。通过用外加磁场控制向列液晶的各向异性，可以将来自发散的入射光束的具有一定入射角的单射线选择性地耦合到表面波中。此属性的实现可能会导致新一代的片上集成光学器件和二维光子器件。{一世。