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Symmetry
Special Issues
Terahertz Communication and Asymmetric Transmission: Advances and Applications
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Terahertz Communication and Asymmetric Transmission: Advances and Applications

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Engineering and Materials".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 2767

Special Issue Editor

Prof. Dr. Limei Qi

E-Mail Website
Guest Editor
School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Interests: Terahetz communication, Metamaterial, Sensor, Asymmetry transmission

Special Issue Information

Dear Colleagues,

Symmetry is one of the most important notions in natural science. However, many new phenomena, such as asymmetry transmission, polarization selection, and so on, appear under the condition of symmetry breaking in traditional devices. Terahertz (THz) communication and asymmetric transmission have aroused great interest in the scientific community with the rapid development of THz science and technology.

The aim of the present Special Issue is to emphasize the advances and applications of terahertz communication and asymmetric transmission in nanostructure, metamaterials, and so on. We are soliciting contributions (research and review articles) covering a broad range of topics on terahertz communication and asymmetric transmission, including (though not limited to) the following:

  • Terahertz devices such as filters, absorbers, modulators, polarizers, electromagnetic-induced transparency, antennas, sensors, etc.
  • Asymmetry transmission in nanostructures or metamaterials.
  • Symmetry breaking in nanosciences.
  • The applications of chiral structures.

Prof. Dr. Limei Qi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Terahetz devices, such as filters, absorbers, modulators, polarizers, electromagnetic induced transparency, antennas, sensors and etc
  • Asymmetry transmission in nanostructures or metamaterials
  • Symmetries breaking in nanosciences
  • The applications of chiral structures

Published Papers (1 paper)

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Research

8 pages, 2512 KiB  
Article
Terahertz Metamaterial Modulator Based on Phase Change Material VO2
by Yanfei Dong, Dingwang Yu, Gaosheng Li, Mingtuan Lin and Li-An Bian
Symmetry 2021, 13(11), 2230; https://0-doi-org.brum.beds.ac.uk/10.3390/sym13112230 - 22 Nov 2021
Cited by 17 | Viewed by 2151
Abstract
In this paper, a new type of terahertz (THz) metamaterial (MM) modulator has been presented with bifunctional properties based on vanadium dioxide (VO2). The design consists of a VO2 resonator, polyimide substrate, frequency selective surface (FSS) layer, and VO2 [...] Read more.
In this paper, a new type of terahertz (THz) metamaterial (MM) modulator has been presented with bifunctional properties based on vanadium dioxide (VO2). The design consists of a VO2 resonator, polyimide substrate, frequency selective surface (FSS) layer, and VO2 film. Based on the metal-insulator transition (MIT) of VO2, this structure integrated with VO2 material can achieve the dynamic modulation on both transmission and reflection waves at 2.5 THz by varying the electrical conductivity value of VO2. Meanwhile, it also exhibits adjustable absorption performance across the whole band from 0.5–7 THz. At the lower conductivity (σ = 25 S/m), this structure can act as a bandpass FSS, and, at the high conductivity (σ = 2 × 105 S/m), it behaves like a wideband absorber covering 2.52–6.06 THz with absorption A > 0.9, which realizes asymmetric transmission. The surface electric field distributions are illustrated to provide some insight into the physical mechanism of dynamic modulation. From the simulated results, it can be observed that this design has the capability of controlling tunable manipulation on both transmission/reflection responses at a wide frequency band. This proposed design may pave a novel pathway towards thermal imaging, terahertz detection, active modulators, etc. Full article
(This article belongs to the Special Issue Terahertz Communication and Asymmetric Transmission: Advances and Applications)
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