Passive and active metasurface based on metal-insulator-metal structure
Passive and active metasurface based on metal-insulator-metal structure
复制标题
基于金属-绝缘体-金属结构的无源和有源超表面
DOI：
10.1117/12.2245918
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Akira Kaijima
中科院分区：
文献类型：
--
作者：
Junichi Takahara;Tianji Liu;Hideaki Hatada;Yusuke Nagasaki;Masashi Miyata;Akira Kaijima
金属-绝缘体-金属（MIM）结构是一种基本的等离子体结构，自等离子体学的早期阶段以来就得到了广泛的研究。它使我们能够限制表面等离子体激元（SPP）并将光线集中到超出衍射极限的纳米空间。有限长度MIM结构被认为是作为纳米腔的SPP法布里-珀罗谐振器。在这里，我们回顾了最近关于基于可重构金属-空气-金属（MAM）纳米腔的活性超表面的研究，该纳米腔通过改变间隙距离来修改散射中的反射或吸收光谱。这种可重构的 MAM 纳米腔成为各种应用的有希望的候选者，例如等离子体颜色或从可见光到红外范围的天空辐射器。
A metal-insulator-metal (MIM) structure is a fundamental plasmonic structure that has been studied widely since the early stage of plasmonics. It enables us to confine surface plasmon polariton (SPP) and concentrate light into nano-space beyond the diffraction limit. A finite-length MIM structure is considered to be a Fabry-Perot resonator of SPP as a nanocavity. Here, we review our recent studies about active metasurface based on a reconfigurable metal-air-metal (MAM) nanocavity which modify reflection or absorption spectra in scattering by changing a gap distance. Such reconfigurable MAM nanocavity becomes promising candidate for various applications such as plasmonic color or sky radiator from visible to infrared range.