We discuss the impact of large-angle scattering events in highly forward-scattering media on the spatial distribution of the diffusively reflected light. We show that, even for highly forward-scattering media, the reflected light near the incident beam axis is strongly dependent on the small number of large-angle scattering events. Reliable modeling of near-axis reflection thus requires accurate knowledge of the scattering phase function’s behavior at large angles.
© 2007 Optical Society of America
Original Manuscript: September 1, 2006
Revised Manuscript: October 23, 2006
Manuscript Accepted: October 23, 2006
Published: February 2, 2007
Vol. 2, Iss. 4 Virtual Journal for Biomedical Optics
S. D. Campbell, A. K. O'Connell, G. H. Rutherford, and R. Grobe, "Impact of large-angle scattering on diffusively backscattered halos," Opt. Lett. 32, 560-562 (2007)