Deterministic light focusing in space and time through multiple scattering media with a Time-Resolved Transmission Matrix approach

摘要

We report a method to characterize the propagation of an ultrashort pulse oflight through a multiple scattering medium by measuring its time-resolvedtransmission matrix. This method is based on the use of a spatial lightmodulator together with a coherent time-gated detection of the transmittedspeckle field. Using this matrix, we demonstrate the focusing of the scatteredpulse at any arbitrary position in space and time after the medium. Ourapproach opens new perspectives for both fundamental studies and applicationsin imaging and coherent control in disordered media.