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亚 1.5 微米波段具有强磁响应的新型介电超材料构建模块：硅胶体纳米腔。

A new dielectric metamaterial building block with a strong magnetic response in the sub-1.5-micrometer region: silicon colloid nanocavities.

机构信息

Centro de Tecnologias Fisicas, Unidad Asociada ICMM/CSIC-UPV, Universidad Politecnica de Valencia, Av. Los Naranjos s/n, Valencia, 46022, Spain Instituto de Ciencia de Materiales de Madrid CSIC, Madrid, 28049, Spain.

出版信息

Adv Mater. 2012 Nov 20;24(44):5934-8. doi: 10.1002/adma.201201987. Epub 2012 Aug 24.

DOI:10.1002/adma.201201987
PMID:22927242
Abstract

A new dielectric metamaterial building block based on high refractive index silicon spherical nanocavities with Mie resonances appearing in the near infrared optical region is prepared and characterized. It is demonstrated both experimentally and theoretically that a single silicon nanocavity supports well-defined and robust magnetic resonances, even in a liquid medium environment, at wavelength values up to six times larger than the cavity radius.

摘要

一种新的基于具有近红外光学区域米氏谐振的高折射率硅球形纳米腔的介电超材料构建模块已经制备和表征。实验和理论都表明，即使在液体环境中，单个硅纳米腔也能支持定义明确且稳健的磁共振，其波长值是腔半径的六倍。

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