University of Oulu

Bykov, A., Tuchin, V. & Meglinski, I. Multiplexed spatially-focused localization of light in adipose biological tissues. Sci Rep 12, 9711 (2022).

Multiplexed spatially-focused localization of light in adipose biological tissues

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Author: Bykov, Alexander1; Tuchin, Valery2,3,4; Meglinski, Igor1,4,5,6
Organizations: 1Opto-Electronics and Measurement Techniques, University of Oulu, Oulu, Finland
2Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
3Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia
4Interdisciplinary Laboratory of Biophotonics, Tomsk State University, Tomsk, Russia
5Institute of Clinical Medicine N.V. Sklifosovsky, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
6College of Engineering and Physical Sciences, Aston University, Birmingham, UK
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.4 MB)
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Language: English
Published: Springer Nature, 2022
Publish Date: 2022-11-16


Last decades the effects of localization and focusing of light in turbid randomly inhomogeneous tissue-like scattering medium have been attracting a particular attention. Weak localization of light in disordered and weakly ordered biological tissue, polarization memory effect, correlations in transmission matrices, focusing light by wavefronts shaping have been widely exploited. Here, we represent an experimentally observed and theoretically confirmed new type of spatial localization of light within biological tissues. General description of the observed phenomenon based on Monte Carlo ray tracing model is provided. We find that innate body arrangements of individual adipocytes can act as a cascade of quasi-ordered microscale lenses confining propagation of light within adipose tissues similar to lens lightguides. The observed spatially-resolved longitudinal multi-focusing of light within disordered adipose biological tissues can naturally lead greater spatial control and enhance light-tissue interactions.

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Series: Scientific reports
ISSN: 2045-2322
ISSN-E: 2045-2322
ISSN-L: 2045-2322
Volume: 12
Issue: 1
Article number: 9711
DOI: 10.1038/s41598-022-14350-3
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: Current study supported by the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 863214-NEUROPA project, Academy of Finland (Projects 314639, 325097), and partially by the Leverhulme Trust and The Royal Society (Ref. no.:APX111232 APEX Awards 2021).
EU Grant Number: (863214) NEUROPA - Non-invasive dynamic neural control by laser-based technology
Academy of Finland Grant Number: 314639
Detailed Information: 314639 (Academy of Finland Funding decision)
325097 (Academy of Finland Funding decision)
Dataset Reference: All data generated or analysed during this study are included in this published article and its supplementary information files.
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