# Light fields in complex media: mesoscopic scattering meets wave control

## TL;DR

This paper reviews recent advances in wave front shaping in complex media, highlighting how mesoscopic scattering theory enables light control, imaging, and communication through turbid samples, with connections to quantum transport phenomena.

## Contribution

It provides a comprehensive overview of experimental and theoretical developments in wave front shaping and mesoscopic scattering in complex media, emphasizing their applications.

## Key findings

- Enhanced light focusing in turbid media
- Theoretical links between quantum transport and light scattering
- Potential applications in imaging and communication

## Abstract

The newly emerging field of wave front shaping in complex media has recently seen enormous progress. The driving force behind these advances has been the experimental accessibility of the information stored in the scattering matrix of a disordered medium, which can nowadays routinely be exploited to focus light as well as to image or to transmit information even across highly turbid scattering samples. We will provide an overview of these new techniques, of their experimental implementations as well as of the underlying theoretical concepts following from mesoscopic scattering theory. In particular, we will highlight the intimate connections between quantum transport phenomena and the scattering of light fields in disordered media, which can both be described by the same theoretical concepts. We also put particular emphasis on how the above topics relate to application-oriented research fields such as optical imaging, sensing and communication.