Open AccessReflection phase modification by metamaterial interface: an understanding of design criteria for ultrathin multispectral absorber
Author(s) -
Meiling Li,
Ruixiang Deng,
Badar Muneer,
Tao Zhang
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.026131
Subject(s) - multispectral image , optics , metamaterial , microwave , absorption (acoustics) , materials science , reflection (computer programming) , wavelength , phase (matter) , optoelectronics , computer science , physics , telecommunications , quantum mechanics , computer vision , programming language
We introduce a metasurface to modify the reflection phase for multispectral microwave absorbers. General quantitive design criteria are proposed by carrying out field analysis, so that design of multispectral microwave absorber can be effectively realized. Optimal design process is discussed to develop an understanding of the absorbing mechanism. Experiment results show that the absorber having only 0.015 times the wavelength at the center frequency can simultaneously achieve high absorption in the microwave, visible light and near-infrared light bands. Multispectral absorption comes with added features of flexibility, ultrathin thickness and a light weight that make it a powerful candidate in advanced stealth application.