Design of triple-band metamaterial absorbers with refractive index sensitivity at infrared frequencies

A triple-band perfect plasmonic metamaterial absorber based on a metal/insulator/metal (MIM) structure is designed. A new freedom through tuning the thicknesses of each ring structures is introduced to realize a quasi-three-dimensional perfect absorber at three extinction wavelengths by using the fi...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2016-10, Vol.24 (22), p.25742-25751
Main Authors: Xu, Jie, Zhao, Ziyi, Yu, Haochi, Yang, Le, Gou, Peng, Cao, Jun, Zou, Yuexin, Qian, Jie, Shi, Tianjun, Ren, Qijun, An, Zhenghua
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A triple-band perfect plasmonic metamaterial absorber based on a metal/insulator/metal (MIM) structure is designed. A new freedom through tuning the thicknesses of each ring structures is introduced to realize a quasi-three-dimensional perfect absorber at three extinction wavelengths by using the finite difference time domain method. The physical machine is explained by the time domain field analyses and the coupled mode theory. The characteristics of the absorber make our proposed strategy applicable for the design of more general multiband and broadband perfect absorbers. In addition, these perfect absorbing metamaterials are found to exhibit excellent performance in refractive index sensing.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.24.025742