"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

The design of terahertz absorber with four peaks by combined four T-shape with ring metal

JIANJUN LIU1, LILI MAO2, JINFENG KU2, BING ZHA2, DONG CHEN2, WENBIN DING2, JIANPING GENG3,4,*

Affiliation

  1. College of Food Science, Southwest University, Chongqing 400715 China
  2. School of Electrical Engineering, Jiujiang University, Jiujiang Jiangxi 332005 China
  3. School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, Guangxi 541004 China
  4. Guangxi Key Laboratory of Automatic Detecting Technology and Instruments (Guilin University of Electronic Technology) China

Abstract

A four peaks absorber which includes two metal layers and one dielectric layer is proposed in this paper. The metal layer of absorber is a square array that consists of four T-shape metal cell and ring metal cell that can produce four resonance absorptions. By studying the surface current and electric field z-component, the four peaks is originated from the two distinct resonance modes of the T-shape induced by the incident electromagnetic wave. Due to the symmetrical structure, the proposed absorber is not sensitive to polarization direction of incident waves and can maintain high absorption rate in a wide range angles. There is a potential application value for absorber in electromagnetic stealth, radiation detection and biological detection..

Keywords

Absorber, Terahertz, Resonance, T-shape.

Citation

JIANJUN LIU, LILI MAO, JINFENG KU, BING ZHA, DONG CHEN, WENBIN DING, JIANPING GENG, The design of terahertz absorber with four peaks by combined four T-shape with ring metal, Optoelectronics and Advanced Materials - Rapid Communications, 11, 11-12, November-December 2017, pp.677-680 (2017).

Submitted at: April 1, 2016

Accepted at: Nov. 28, 2017