标题： 准晶体超表面中基于几何相位的光学模式控制 显示英文标题

标题： Optical Mode Control by Geometric Phase in Quasicrystal Metasurface

摘要： 我们报告了由于各向异性亚波长结构引起的非周期性几何相位导致的准晶超表面的光学自旋控制模式的观察结果。 当在非周期性结构表面上引入几何相位缺陷时，这些模式表现出偏振螺旋度依赖性，从而产生光学自旋霍尔效应。 研究了来自准晶结构的辐射热色散带，所观察到的带是由各向异性天线的非周期性空间变化取向引起的光学自旋轨道相互作用产生的。 通过测量自旋投影的衍射图案，在可见光谱范围内实验观察到了由几何相位获取引起的揭示模式的光学自旋翻转行为。 能够以自旋依赖方式操控准晶的光-物质相互作用的能力为通过自旋光学非周期性人工平面表面塑造光提供了途径。 显示英文摘要

摘要： We report on the observation of optical spin-controlled modes from a quasicrystalline metasurface as a result of an aperiodic geometric phase induced by anisotropic subwavelength structure. When geometric phase defects are introduced in the aperiodic structured surface, the modes exhibit polarization helicity dependence resulting in the optical spin-Hall effect. The radiative thermal dispersion bands from a quasicrystal structure were studied where the observed bands arise from the optical spin-orbit interaction induced by the aperiodic space-variant orientations of anisotropic antennas. The optical spin-flip behavior of the revealed modes that arise from the geometric phase pickup was experimentally observed within the visible spectrum by measuring the spin-projected diffraction patterns. The introduced ability to manipulate the light-matter interaction of quasicrystals in a spin-dependent manner provides the route for molding light via spin-optical aperiodic artificial planar surfaces.