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Optimal Control of Coherent Light Scattering for Binary Decision Problems by Bouchet, Dorian; Rachbauer, Lukas M.; Rotter, Stefan; Mosk, Allard P.; Bossy, Emmanuel is a scholarly article available to read on EtoBox.

What is Optimal Control of Coherent Light Scattering for Binary Decision Problems about?

Due to quantum noise fluctuations, the rate of error achievable in decision problems involving several possible configurations of a scattering system is subject to a fundamental limit known as the Helstrom bound. Here, we present a general framework to calculate and minimize this bound using coherent probe fields with tailored spatial distributions. As an example, we experimentally study a target located in between two disordered scattering media. We first show that the optimal field distribution can be directly identified using a general approach based on scattering matrix measurements. We then demonstrate that this optimal light field successfully probes the presence of the target with a number of photons that is reduced by more than two orders of magnitude as compared to unoptimized fields.

Author

Bouchet, Dorian; Rachbauer, Lukas M.; Rotter, Stefan; Mosk, Allard P.; Bossy, Emmanuel

Published

2021

Language

EN