Time-resolved transmission through homogeneous scattering media: time-response effects

An analytical expression has been obtained that describes the time Variatio n of time-resolved signals transmitted through or reflected by a homogeneou s scattering slab as measured with a detection system having a square-impul se response. This expression can be used to improve the match between theor etical and experimental time-resolved signals measured with a system having a finite response time. It can also be used to assess the effect of a fini te detection response time on the time-domain characterization of a turbid medium. The expression can be adapted to detection systems that are not tim e invariant. (C) 1999 Optical Society of America.