Deterministic control of broadband light through a multiply scattering   medium via the multispectral transmission matrix
  We present a method to measure the spectrally-resolved transmission matrix of a multiply scattering medium, thus allowing for the deterministic spatiospectral control of a broadband light source by means of wavefront shaping. As a demonstration, we show how the medium can be used to selectively focus one or many spectral components of a femtosecond pulse, and how it can be turned into a controllable dispersive optical element to spatially separate different spectral components to arbitrary positions. 
Daria Andreoli, Giorgio Volpe, Sebastien Popoff, Ori Katz, Samuel   Gresillon, Sylvain Gigan
physics.optics