AI Article Synopsis
- Researchers propose a smart digital metasurface made of CVD graphene that is transparent and operates in the mmWave range.
- The metasurface utilizes optimized unit cells that can switch between two states, allowing for binary encoding and various electromagnetic functions.
- This technology could enable applications like beam splitting and reduced radar visibility, making it suitable for future transparent surfaces in Beyond-5G and 6G networks.
Article Abstract
We propose and numerically investigate a smart, optically transparent digital metasurface reflective in the mmWave range, based on CVD graphene programmable elements. For both TM and TE polarizations, we detail the optimization of the unit cells, designed to exhibit two distinct states that correspond to those of binary encoding. The whole metasurface encoding can be customized to provide different electromagnetic functions, such as wide-band beam splitting at a controlled angle and reduction of the Radar Cross Section. Optically transparent metasurfaces could be integrated and exploited in windows and transparent surfaces in future Beyond-5G and 6G ecosystems.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10039886 | PMC |
| http://dx.doi.org/10.1038/s41598-023-31298-0 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The art and science of translucent color organic solar cells.
Nat Commun
January 2025
Department of Physics, Research Centre of Excellence for Organic Electronics and Institute of Advanced Materials, Hong Kong Baptist University, Hong Kong, China.
The artistic and scientific perspectives of the translucent color organic solar cells (OSCs), made with the emerging narrowband nonfullerene acceptors are explored. The translucent color OSCs, comprising a Fabry-Pérot microcavity optical coupling layer, have a power conversion efficiency of >15% and a maximum transparency of >20% for the three primary colors. The performance-color relationship of the translucent color OSCs is analyzed using a combination of high-throughput optical computing and experimental optimization, allowing light with desired color to pass through, while absorbing enough light to generate electricity.
View Article and Find Full Text PDF3D Printed Biomimetic Bilayer Limbal Implants for regeneration of the Corneal Structure in Limbal Stem Cell Deficiency.
Acta Biomater
January 2025
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China. Electronic address:
Limbal stem cell deficiency (LSCD) causes vision loss and is often treated by simple corneal epithelial cell transplantation with poor long-term efficiency. Here, we present a biomimetic bilayer limbal implant using digital light processing 3D printing technology with gelatin methacrylate (GelMA) and poly (ethylene glycol) diacrylate (PEGDA) bioinks containing corneal epithelial cells (CECs) and corneal stromal stem cells (CSSCs), which can transplant CECs and improve the limbal niche simultaneously. The GelMA/PEGDA hydrogel possessed robust mechanical properties to support surgical transplantation and had good transparency, suitable swelling and degradation rate as a corneal implant.
View Article and Find Full Text PDFElectrically Switchable Multi-Stable Topological States Enabled by Surface-Induced Frustration in Nematic Liquid Crystal Cells.
Adv Mater
January 2025
Liquid Crystals and Photonics Group, Department of Electronics and Information Systems, Ghent University, Technologiepark-Zwijnaarde 126, Ghent, 9052, Belgium.
In liquid crystal (LC) cells, the surface patterning directs the self-assembly of the uniaxial building blocks in the bulk, enabling the design of stimuli-response optical devices with various functionalities. The combination of different anchoring patterns at both substrates can lead to surface induced frustration, preventing a purely planar and defect-free configuration. In cells with crossed assembly of rotating anchoring patterns, elastic deformations allow to obtain a defect-free bulk configuration, but an electrical stimulus can induce disclination lines.
View Article and Find Full Text PDFResearch on the Application of Silver Nanowire-Based Non-Magnetic Transparent Heating Films in SERF Magnetometers.
Sensors (Basel)
January 2025
School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
We propose a non-magnetic transparent heating film based on silver nanowires (Ag-NWs) for application in spin-exchange relaxation-free (SERF) magnetic field measurement devices. To achieve ultra-high sensitivity in atomic magnetometers, the atoms within the alkali metal vapor cell must be maintained in a stable and uniform high-temperature environment. Ag-NWs, as a transparent conductive material with exceptional electrical conductivity, are well suited for this application.
View Article and Find Full Text PDFW/WO/TiO Multilayer Film with Elevated Electrochromic and Capacitive Properties.
Materials (Basel)
January 2025
College of Physics and Electronic Information, Shandong Key Laboratory of Biophysics, Dezhou University, Dezhou 253023, China.
Electrochromic capacitors, which are capable of altering their appearances in line with their charged states, are drawing substantial attention from both academia and industry. Tungsten oxide is usually used as an electrochromic layer material for electrochromic devices, or as an active material for high-performance capacitor electrodes. Despite this, acceptable visual aesthetics in electrochromic capacitors have almost never been achieved using tungsten oxide, because, in its pure form, this compound only displays a onefold color modulation from transparent to blue.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!