Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
2.3
2.4
Journals
Photonics
Special Issues
Optical Metasurfaces: Recent Advances and Future Directions
share announcement

Optical Metasurfaces: Recent Advances and Future Directions

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1558

Special Issue Editors

Dr. Suxia Xie

E-Mail Website
Guest Editor
School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, China
Interests: metasurface; bound states in the continuum; phononics
Dr. Qiong Liu

E-Mail Website
Guest Editor
School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan, China
Interests: metasurface; 2D material; fano resonance; plasmonic perfect absorber

Special Issue Information

Dear Colleagues,

The current progress in tunable optical metasurfaces consists of metasurfaces based on active materials and metasurfaces based on nano-mechanical structural reconfiguration. Recent years have witnessed a growing research interest in the study of liquid crystals (LCs), phase-change, flexible materials, and microelectromechanical systems (MEMS). This Special Issue is expected to boost the development of new directions in the field of active materials and nano-mechanical structural reconfiguration to foreseen ground-breaking discoveries and provide novel avenues for important applications. The elements of tunable metasurfaces are spread across disciplines, and many of the recent ideas are based on the concepts of active materials and nano-mechanical structural reconfiguration.

We expect that papers of this Special Issue will explore the innovation of materials, fabrication technology, and design and optimization methods, in order to provide an interdisciplinary platform for novel photonics applications.

Dr. Suxia Xie
Dr. Qiong Liu
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. Photonics 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

  • tunable optical metasurfaces
  • active materials
  • bound states in the continuum
  • Q-factor
  • nano-mechanical structural reconfiguration
  • liquid crystals materials
  • phase-change materials
  • flexible materials
  • microelectromechanical systems
  • fabrication technology
  • design and optimization methods

Published Papers (1 paper)

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

Research

13 pages, 2794 KiB  
Article
Chiral Quasi-Bound States in the Continuum of a Dielectric Metasurface for Optical Monitoring and Temperature Sensing
by Xu Du, Suxia Xie, Haoxuan Nan, Siyi Sun, Weiwei Shen, Jingcheng Yang and Xin Guan
Photonics 2023, 10(9), 980; https://doi.org/10.3390/photonics10090980 - 28 Aug 2023
Cited by 1 | Viewed by 1297
Abstract
Chiral BIC can reach ultrahigh quality factors (Q-factor) based on its asymmetry, with broken mirror symmetries and in-plane inversion. Only by in-plane structural perturbation can chiral quasi-BIC (q-BIC) appear, so it is much more realizable and reasonable for the manufacturers in practical productions [...] Read more.
Chiral BIC can reach ultrahigh quality factors (Q-factor) based on its asymmetry, with broken mirror symmetries and in-plane inversion. Only by in-plane structural perturbation can chiral quasi-BIC (q-BIC) appear, so it is much more realizable and reasonable for the manufacturers in practical productions and fabrications considering the technology and means that are available. In this paper, we design a new dielectric metasurface employing H-shaped silica meta-atoms in the lattice, which is symmetrical in structure, obtaining chiral BIC with ultrahigh Q-factor (exceeding 105). In this process, we change the length of the limbs of the structure to observe the specific BICs. Previous scholars have focused on near-infrared-wavelength bands, while we concentrate on the terahertz wavelength band (0.8–1 THz). We found that there is more than one BIC, thus realizing multiple BICs in the same structure; all of them exhibit excellent circular dichroism (CD) (the maximum value of CD is up to 0.8127) for reflectance and transmittance, which provides significant and unique guidance for the design of multi-sensors. Meanwhile, we performed temperature sensing with chiral BIC; the sensitivity for temperature sensing can reach 13.5 nm/°C, which exhibits high accuracy in measuring temperature. As a consequence, the result proposed in this study will make some contributions to advanced optical imaging, chiral sensors with high frequency and spectral resolution, optical monitoring of environmental water quality, multiple sensors, temperature sensing, biosensing, substance inspection and ambient monitoring and other relevant optical applications. Full article
(This article belongs to the Special Issue Optical Metasurfaces: Recent Advances and Future Directions)
►▼ Show Figures

Figure 1

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