Meglinski, Igor, Lopushenko, Ivan, Sdobnov, Anton and Bykov, Alexander (2024). Phase preservation of orbital angular momentum of light in multiple scattering environment. Light: Science & Applications, 13 (1),
Abstract
Recent advancements in wavefront shaping techniques have facilitated the study of complex structured light’s propagation with orbital angular momentum (OAM) within various media. The introduction of spiral phase modulation to the Laguerre–Gaussian (LG) beam during its paraxial propagation is facilitated by the negative gradient of the medium’s refractive index change over time, leading to a notable increase in the rate of phase twist, effectively observed as phase retardation of the OAM. This approach attains remarkable sensitivity to even the slightest variations in the medium’s refractive index (∼10−6). The phase memory of OAM is revealed as the ability of twisted light to preserve the initial helical phase even propagating through the turbid tissue-like multiple scattering medium. The results confirm fascinating opportunities for exploiting OAM light in biomedical applications, e.g. such as non-invasive trans-cutaneous glucose diagnosis and optical communication through biological tissues and other optically dense media.
Publication DOI: | https://doi.org/10.1038/s41377-024-01562-7 |
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Divisions: | College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design College of Health & Life Sciences College of Engineering & Physical Sciences Aston University (General) |
Funding Information: | This article is based upon work from COST Action CA21159\u2014understanding interaction light\u2014biological surfaces: the possibility for new electronic materials and devices (PhoBioS) and supported by COST (European Cooperation in Science and Technolog |
Additional Information: | Copyright © The Author(s) 2024. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ |
Publication ISSN: | 2047-7538 |
Last Modified: | 02 Dec 2024 09:08 |
Date Deposited: | 03 Sep 2024 09:27 |
Full Text Link: | |
Related URLs: |
https://www.nat ... 377-024-01562-7
(Publisher URL) http://www.scop ... tnerID=8YFLogxK (Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2024-12 |
Published Online Date: | 2024-08-26 |
Accepted Date: | 2024-08-04 |
Authors: |
Meglinski, Igor
(
0000-0002-7613-8191)
Lopushenko, Ivan Sdobnov, Anton Bykov, Alexander |