Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.3
2.6
Journals
Electronics
Special Issues
Physics and Applications of Terahertz Metasurfaces
share announcement

Physics and Applications of Terahertz Metasurfaces

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microelectronics".

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 5281

Special Issue Editors

Dr. Longqing Cong

E-Mail Website
Guest Editor
Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Interests: active photonic metadevices; ultrafast terahertz optics; metamaterials
Prof. Xiaofei Zang

E-Mail Website
Guest Editor
School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Yangpu, Shanghai, China
Interests: Terahertz functional devices; Terahertz super-resolution imaging; Topological photonics
Dr. Jian Lu

E-Mail Website
Guest Editor
Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
Interests: nanophotonics, nonlinear optics; ultrafast spectroscopy; condensed-matter physics; terahertz science and technology
Prof. Yuanmu Yang

E-Mail Website
Guest Editor
Department of Precision Instrument, Tsinghua University, 1 Qinqhuayuan, Beijing 100084, China
Interests: terahertz metamaterials and nanophotonics

Special Issue Information

Dear Colleagues, 

Terahertz (THz) radiation is receiving increasing attention for its rich physics and diverse range of applications, including information and communications technology (ICT), non-destructive sensing and imaging, strong light–matter interactions, and biotechnology. Recent breakthroughs in high-power THz sources have further pushed THz research into center-stage with the development of near-room-temperature THz quantum cascade lasers. The past 20 years have witnessed a revolution in THz technology, mainly driven by the exploration of its diverse physics and materials, among which metamaterials and metasurfaces have demonstrated outstanding performance in understanding novel physics and manipulating THz radiation.

Continual advances in THz technology rely on the most fascinating physics and advanced material systems to meet the requirements of low loss, high efficiency, and compact volume in high-frequency electronics and optics. The THz band would be the information carrier in the next-generation wireless communications; thus, the development of devices in the THz band for high-speed communications, such as antennas, waveguides, modulators, and detectors, is urgently needed. Exploration of interesting physics and device configurations provides the foundation of active metadevices for THz communication applications. This development is not only important for the understanding of optical physics in fundamental light–matter interactions but is also beneficial for all potential THz applications.

This Special Issue will focus on progress in the physics and applications of THz metasurfaces in the relevant areas of imaging, communications, sensing, and astronomy, including, but not limited, to the following themes:

  • Terahertz metamaterials and metasurfaces;
  • Fundamental physics of light–matter interactions;
  • Terahertz devices, such as modulators, waveguides, couplers, sensors, and antennas;
  • Terahertz sensing and imaging applications;
  • Terahertz sources and detectors;
  • 2D materials for THz applications.

Prof. Longqing Cong
Prof. Xiaofei Zang
Dr. Jian Lu
Prof. Yuanmu Yang
Guest Editors

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. Electronics is an international peer-reviewed open access semimonthly 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

  • Terahertz metamaterials and metasurfaces
  • Fundamental physics of light–matter interactions
  • Terahertz devices, such as modulators, waveguides, couplers, sensors, and antennas
  • Terahertz sensing and imaging applications
  • Terahertz sources and detectors
  • 2D materials for THz applications

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

9 pages, 5036 KiB  
Article
A Windmill-Shaped SSPP Waveguide for High-Efficiency Microwave and Terahertz Propagation
by Zhihui Wang, Hao Feng, Xiaofan Yang, Xiong Xu, Yunxing Zheng and Longfang Ye
Electronics 2022, 11(9), 1293; https://doi.org/10.3390/electronics11091293 - 19 Apr 2022
Cited by 2 | Viewed by 2111
Abstract
We propose a novel type of spoof surface plasmon polariton (SSPP) waveguide based on windmill-shaped units for high-efficiency microwave and terahertz propagation. The dependence of terahertz dispersion characteristics on geometrical parameters of the proposed waveguide is detailed and investigated. Compared with the conventional [...] Read more.
We propose a novel type of spoof surface plasmon polariton (SSPP) waveguide based on windmill-shaped units for high-efficiency microwave and terahertz propagation. The dependence of terahertz dispersion characteristics on geometrical parameters of the proposed waveguide is detailed and investigated. Compared with the conventional comb-shaped and T-shaped SSPP waveguide units, the proposed windmill-shaped unit shows a lower asymptotic frequency and stronger field-confinement characteristics for the supported fundamental SSPP mode. To demonstrate the properties of the windmill-shaped SSPP waveguide, a tapered conversion is designed to connect the windmill-shaped SSPP waveguide and the microstrip for smooth momentum and impedance matching. The simulated results show that the whole waveguide has excellent transmission performance with S11 < −10 dB and S21 > −1 dB from 0 THz to 5.68 THz, as well as a large out-of-band rejection response (S21 < −80 dB). Then, a scaled microwave windmill-shaped waveguide prototype is fabricated and measured. The numerical and experimental results are in good agreement, which further validates the proposed SSPP waveguide design. The proposed waveguide has excellent microwave and terahertz propagation and rejection characteristics, which may have great potential applications in various microwave and terahertz devices and circuits. Full article
(This article belongs to the Special Issue Physics and Applications of Terahertz Metasurfaces)
►▼ Show Figures

Figure 1

12 pages, 3741 KiB  
Article
Hat-Top Beams for Generating Tunable THz Radiations Using a Medium of Conducting Nanocylinders
by Hitendra K. Malik, Tamanna Punia and Dimple Sharma
Electronics 2021, 10(24), 3134; https://doi.org/10.3390/electronics10243134 - 16 Dec 2021
Cited by 11 | Viewed by 2251
Abstract
There are a large number of studies for terahertz (THz) radiation generation, but tunable THz sources are still a challenge since it is difficult to tune frequency, focus and intensity of the radiation simultaneously. The present work proposes the THz generation by the [...] Read more.
There are a large number of studies for terahertz (THz) radiation generation, but tunable THz sources are still a challenge since it is difficult to tune frequency, focus and intensity of the radiation simultaneously. The present work proposes the THz generation by the interaction of two hat-top laser beams with a host medium of argon gas containing graphite nanocylinders, as these beams result in highly nonlinear interaction because of a smooth dip in their peak intensity and a fast rise and fall in the overall intensity pattern. Such an interaction produces nonlinear current (6.7 × 108 A/m2) because of the electron cloud of the nanocylinders, which can be modulated by the laser and medium properties for realizing tunable THz radiation. The orientation of basal planes of nanocylinders is shown to be important for this mechanism, though it may be challenging for the experimentalists. The resonant excitation takes place when the plasmon frequency matches the beating frequency of the laser beams, and in the proposed mechanism one can have longitudinal surface plasmon resonance (~12 THz) and transverse surface plasmon resonance (~40 THz), leading to frequency-tunable THz radiation. The role of height and inter particle distance between the adjacent nanocylinders on the THz field amplitude and the efficiency of the mechanism is uncovered by controlling the aspect ratio in the nanocylinders. For example, reducing the inter particle distance from 180 nm to 60 nm leads to the enhancement of THz field from 1 × 108 V/m to 5.48 × 108 V/m. The profile of the emitted THz radiation is investigated in detail under the effect of various parameters in order to prove the practicality of the proposal. The proposed design and mechanism would be attractive for electromagnetic and communication societies which are dealing with millimeter-waves and THz components in addition to its medical application. Full article
(This article belongs to the Special Issue Physics and Applications of Terahertz Metasurfaces)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop