Terahertz band pass filter design using multilayer metamaterials

In this paper, a bandpass terahertz filter based on multilayer metamaterials is proposed, designed and simulated numerically. To do this idea, first of all, the functional behavior (filtering property) of the bilayer metasurface is investigated considering a single bilayer-cylinder as a unit cell in...

Full description

Saved in:
Bibliographic Details
Published in:Optical and quantum electronics 2020-03, Vol.52 (3), Article 155
Main Authors: Asl, A. Beheshti, Rostami, A., Amiri, I. S.
Format: Article
Language:English
Subjects:
Bandpass filters
Bandwidths
Bilayers
Broadband
Characterization and Evaluation of Materials
Computer Communication Networks
Computer simulation
Cylinders
Electrical Engineering
Filter design (mathematics)
Lasers
Metamaterials
Multilayers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Terahertz frequencies
Unit cell
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:In this paper, a bandpass terahertz filter based on multilayer metamaterials is proposed, designed and simulated numerically. To do this idea, first of all, the functional behavior (filtering property) of the bilayer metasurface is investigated considering a single bilayer-cylinder as a unit cell in the periodic system. Then, we show that by increasing the number of cylinders as basic elements in the unit cell, the bandwidth will increase. Also, the center frequency is tunable through changes in the dimension of the basic element. The main advantages of the proposed structure that can be used to realize terahertz filters are wideband, tunable, and easy to build. It is shown that the bandwidth of the proposed bandpass filter is about 1 THz and the amount of transmittance is close to 93%.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-020-02268-x