Light scattering control in transmission and reflection with neural networks

Turpin, A. , Vishniakou, I. and Seelig, J. D. (2018) Light scattering control in transmission and reflection with neural networks. Optics Express, 26(23), pp. 30911-30929. (doi: 10.1364/OE.26.030911) (PMID:30469982)

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Abstract

Scattering often limits the controlled delivery of light in applications such as biomedical imaging, optogenetics, optical trapping, and fiber-optic communication or imaging. Such scattering can be controlled by appropriately shaping the light wavefront entering the material. Here, we develop a machine-learning approach for light control. Using pairs of binary intensity patterns and intensity measurements we train neural networks (NNs) to provide the wavefront corrections necessary to shape the beam after the scatterer. Additionally, we demonstrate that NNs can be used to find a functional relationship between transmitted and reflected speckle patterns. Establishing the validity of this relationship, we focus and scan in transmission through opaque media using reflected light. Our approach shows the versatility of NNs for light shaping, for efficiently and flexibly correcting for scattering, and in particular the feasibility of transmission control based on reflected light.

Item Type:Articles
Additional Information:Funding: Max Planck Society; Center of Advanced European Studies and Research (caesar); Nvidia (Titan Xp GPU)..
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Turpin, Dr Alejandro
Authors: Turpin, A., Vishniakou, I., and Seelig, J. D.
College/School:College of Science and Engineering > School of Computing Science
College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
ISSN (Online):1094-4087
Published Online:09 November 2018
Copyright Holders:Copyright © 2018 Optical Society of America
First Published:First published in Optics Express 26(23): 30911-30929
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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