Creating high-contrast patterns in multiple-scattering media via wavefront shaping
Abstract
Wavefront shaping allows focusing light through or inside strongly scattering media, but the background intensity also increases due to long-range correlations, reducing the target's contrast. By manipulating non-local intensity correlations of scattered waves in a disordered system with input wavefront shaping, we create high-contrast patterns behind strongly scattering media and targeted energy delivery into a diffusive system with minimal change in the surrounding intensity. These are achieved by introducing the contrast operator and the difference operator, and utilizing their eigenstates to maximize the target-to-background intensity contrast and energy difference. This work opens the door to coherent control of non-local effects in wave transport for practical applications.
Cite
@article{arxiv.2308.02891,
title = {Creating high-contrast patterns in multiple-scattering media via wavefront shaping},
author = {Liam Shaughnessy and Rohin E. McIntosh and Arthur Goetschy and Chia Wei Hsu and Nicholas Bender and Hasan Yilmaz and Alexey Yamilov and Hui Cao},
journal= {arXiv preprint arXiv:2308.02891},
year = {2025}
}