表面等离激元结构色研究进展

Research progress in plasmonic structural colors

表面等离激元结构色是一种由可见光与金属微纳结构相互作用而产生的颜色。为了分析不同金属微纳结构对可见光特性的调控特性,本文选取了几种典型结构包括纳米光栅,亚波长孔阵列及多层堆叠结构,探究了其选频机理以及滤色效果。本文主要介绍了近几年来相关领域的最新发展成果,并对不同器件的应用范围,现存问题以及发展趋势做出了评述。表面等离激元结构色微纳器件优秀的滤波特性以及良好的电学响应,使其在超高分辨率显示和远程实时光调控等领域具备重大潜力。

Plasmonic structural colors originate from the interaction between light and metallic nanostructures. Rapid development in nanofabrication and characterization of plasmonic structures provides an efficient way to control light properties at subwavefength scale, which can generate plasmonic structural colors. Here we introduce several rep- resentative plasmonic nanostructures which can generate visible structural colors, including nanogratings, perfo- rated metallic films, metal-insulator-metal resonators, dynamically tunable color generators and perfect absorbers. We highlight the properties of plasmonic colors and discuss the intrinsic plasmonic resonance mechanisms. Plasmonic structural colors have the advantages such as ultra-small patterns and rapid response of external change, which are believed to offer a promising future in high-resolution color displays and real-time colors controlling.