Determination of the validity of spectrophotometric measurements based upon cumulants of the temporal point-spread function.
Spectrophotometric measurements of scattering media are nontrivial owing to the nonlinear relationship between the observed attenuation A and the level of absorption coefficient micro(a). Presented is a method, utilizing frequency-domain measurements, capable of determining the validity of a measured change in micro(a) based purely on the characteristics of a baseline temporal point-spread function. The order of cumulant used is shown to provide variation of the sensitivity of the method, and its use is demonstrated through Monte Carlo simulations of transmission measurements taken from a scattering slab.
Applied Optics Group, School of Electrical and Electronic Engineering, University of Nottingham, Nottingham, UK.
David E
DE
Morris
Ian M
IM
Stockford
John A
JA
Crowe