Control of light transmission through opaque scattering media in space and time

TL;DR

This paper demonstrates the first experimental method to control light transmission through opaque media in space and time by manipulating the incident wavefront's spatial degrees of freedom, enabling ultrashort pulse formation and potential applications in imaging and sensing.

Contribution

It introduces a novel technique for combined spatial and temporal control of light in opaque media using only wavefront shaping, advancing the field of light manipulation in complex environments.

Findings

Successful experimental demonstration of spatial and temporal light control

Formation of bandwidth-limited ultrashort pulses through opaque media

Potential for applications in nano- and biophotonics

Abstract

We report the first experimental demonstration of combined spatial and temporal control of light trajectories through opaque media. This control is achieved by solely manipulating spatial degrees of freedom of the incident wavefront. As an application, we demonstrate that the present approach is capable to form bandwidth-limited ultrashort pulses from the otherwise randomly transmitted light with a controllable interaction time of the pulses with the medium. Our approach provides a new tool for fundamental studies of light propagation in complex media and has potential for applications for coherent control, sensing and imaging in nano- and biophotonics.