Temporal propagation of spatial information in turbid media.
The time-resolved propagation of spatial frequencies in turbid media is investigated. We discuss the relevant information content in terms of the spatial Fourier component of the propagating pulse. We present a method to record and analyze the time-gated spatial frequency response of highly scattering media. We demonstrate that high spatial frequency information appears in the early time-gated signal, whereas low frequencies persist for longer times.
Bassi
Andrea
A
Italian Institute of Technology, Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, Milano, 20133, Italy. andreabassi@polimi.it
D'Andrea
Cosimo
C
Valentini
Gianluca
G
Cubeddu
Rinaldo
R
Arridge
Simon
S
D003102:Colloids / Q000737:chemistry*; D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D012542:Scattering, Radiation
D003102:Colloids