Manipulating photoinduced voltage in metasurface with circularly polarized light.
Manipulating photoinduced voltage in metasurface with circularly polarized light.
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DOI：
10.1364/oe.23.005348
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发表时间：
2015-02
期刊：
影响因子：
3.8
通讯作者：
Q. Bai
中科院分区：
文献类型：
--
作者：
Q. Bai
近年来，超颖表面的概念为人们提供了一个前所未有的机会和能力来控制深亚波长范围内的光。然而，到目前为止，大多数努力都致力于利用超表面在光学中的新颖散射特性和应用。在这里，我从理论上和数值上证明，纵向和横向的光致电压可以同时实现在拟议的超颖表面利用磁共振下的圆偏振光的垂直入射，这可能会扩展到电子学的超颖表面的概念和功能，并可能提供一个潜在的方案，通过纳米光子路线图实现纳米级可调电压源。纵向和横向光感应电压的符号可以分别通过调节谐振频率和圆偏振光的旋向性来控制。基于场对称性理论，给出了光生电压的解析表达式。这一工作可以在纳米光子学和电子学之间架起一座桥梁，扩展超颖表面的能力，具有许多潜在的应用。
Recently, the concept of metasurface has provided one an unprecedented opportunity and ability to control the light in the deep subwavelength scale. However, so far most efforts are devoted to exploiting the novel scattering properties and applications of metasurface in optics. Here, I theoretically and numerically demonstrate that longitudinal and transverse photoinduced voltages can be simultaneously realized in the proposed metasurface utilizing the magnetic resonance under the normal incidence of circularly polarized light, which may extend the concept and functionality of metasurface into the electronics and may provide a potential scheme to realize a nanoscale tunable voltage source through a nanophotonic roadmap. The signs of longitudinal and transverse photoin-duced voltages can be manipulated by tuning the resonant frequency and the handedness of circularly polarized light, respectively. Analytical formulae of photoinduced voltage are presented based on the theory of symmetry of field. This work may bridge nanophotonics and electronics, expands the capability of metasurface and has many potential applications.