Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications DOI Creative Commons
Ke Wang, Chengwei Fang, Md. Osman Ali

et al.

Advanced Photonics Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 6, 2025

Optical wireless communications (OWCs) provide a promising alternative to current spectrum‐congested microwave by directly transmitting data‐modulated lightwave in the free space. Due broad unregulated bandwidth, high‐speed data transmissions are achieved. However, direct line‐of‐sight links required OWC systems, and typically only point‐to‐point or limited point‐to‐multi‐point connections can be achieved, limiting communication robustness user movements. In addition, accurate alignment between transceivers is maintain optical link, demanding adaptive beam control functions. To solve these constraints, use of intelligent metasurfaces for dynamic steering manipulation OWCs proposed investigated. Such with sub‐wavelength features also enable other versatile functions like spatial‐ optical‐angular‐momentum‐mode generation, conversion, multiplexing, further improving performance capability OWCs. this article, recent progress summarized view on possible future research directions emerging field that incorporates provided.

Language: Английский

Fluid‐Infiltrated Metalens‐Driven Reconfigurable Intelligent Surfaces for Optical Wireless Communications DOI Creative Commons

Ramna Khalid,

Jaekyung Kim, Nasir Mahmood

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(43)

Published: Sept. 28, 2024

Abstract A reconfigurable intelligent surface (RIS), a leading‐edge technology, represents new paradigm for adaptive control of electromagnetic waves between source and user. While RIS technology has proven effective in manipulating radio frequency using passive elements such as diodes MEMS, its application the optical domain is challenging. The main difficulty lies meeting key performance indicators, with most critical being accurate self‐adjusting positioning. This work presents an alternative design methodology driven by all‐silicon structure fluid infiltration, to achieve real‐time focal length toward designated user, thereby enabling secure data transmission. To validate concept, both numerical simulations experimental investigations are conducted demonstrate fluid‐infiltrated metalens‐driven this application. When combined different fluids, resulting ultra‐compact exhibits exceptional varifocal abilities, ranging from 0.4 0.5 mm, confirming tuning capabilities design. may significantly enhance modulation promote development RIS‐based applications wireless communications data‐transmission integrated photonic devices.

Language: Английский

Citations

4
Fluid‐Induced Reconfigurable Polarization‐Insensitive Metasurfaces for Optical Wireless Communications DOI Open Access

Ramna Khalid,

Jaekyung Kim, Nasir Mahmood

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract In optical wireless communication (OWC), the adaptability of infrared and visible spectra is attracting growing interest. These technologies are promising solutions for various real‐world applications, including indoor, underwater, vehicular, IoT systems. However, conventional OWC systems constrained by their bulky structures fixed properties, which limit ability to provide on‐demand services integrate with on‐chip technologies. Therefore, demand ultrathin, reconfigurable devices real‐time becoming increasingly urgent ensure efficient reliable communication. Here, this study introduces a fluid‐induced reconfigurable, polarization‐insensitive metasurface enhance performance flexibility networks. A key feature its adjust diffracted light meet requirements, irrespective polarization state incident light. This utilizes at wavelength 1550 nm signal transmission reduce environmental interference. proof‐of‐concept, 0.5 mm × fabricated, focal length variation verified in three different fluidic environments: Air (n = 1), Polymethyl methacrylate (PMMA) 1.491), AZ‐GXR 1.602). The proposed design offers reconfigurability, reduced sensitivity, consistent quality, making it ideal next‐generation applications.

Language: Английский

Citations

0
近红外波段消色差超构透镜的设计与仿真 DOI

干崇昊 Gan Chonghao,

卢翔孟 Lu Xiangmeng,

崔大健 Cui Dajian

et al.

Acta Optica Sinica, Journal Year: 2025, Volume and Issue: 45(5), P. 0522003 - 0522003

Published: Jan. 1, 2025

Citations

0
Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications DOI Creative Commons
Ke Wang, Chengwei Fang, Md. Osman Ali

et al.

Advanced Photonics Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 6, 2025

Optical wireless communications (OWCs) provide a promising alternative to current spectrum‐congested microwave by directly transmitting data‐modulated lightwave in the free space. Due broad unregulated bandwidth, high‐speed data transmissions are achieved. However, direct line‐of‐sight links required OWC systems, and typically only point‐to‐point or limited point‐to‐multi‐point connections can be achieved, limiting communication robustness user movements. In addition, accurate alignment between transceivers is maintain optical link, demanding adaptive beam control functions. To solve these constraints, use of intelligent metasurfaces for dynamic steering manipulation OWCs proposed investigated. Such with sub‐wavelength features also enable other versatile functions like spatial‐ optical‐angular‐momentum‐mode generation, conversion, multiplexing, further improving performance capability OWCs. this article, recent progress summarized view on possible future research directions emerging field that incorporates provided.

Language: Английский

Citations

0