Optimal control of light propagation through multiple-scattering media in the presence of noise

TL;DR

This paper investigates how measurement noise affects the optimal control of light through scattering media, showing that control quality depends on detected photoelectrons, with implications for imaging in biological tissues.

Contribution

It introduces a two-step optimization method and demonstrates that control effectiveness is limited by shot noise, aligning experimental results with the proposed model.

Findings

Control quality depends on detected photoelectrons per speckle

Model predictions match experimental data

Potential for improved imaging through scattering media

Abstract

We study the control of coherent light propagation through multiple-scattering media in the presence of measurement noise. In our experiments, we use a two-step optimization procedure to find the optimal incident wavefront. We conclude that the degree of optimal control of coherent light propagation through a multiple-scattering medium is only determined by the number of photoelectrons detected per single speckle spot. The prediction of our model agrees well with the experimental results. Our results offer opportunities for imaging applications through scattering media such as biological tissue in the shot noise limit.