Open AccessContrast improvement by selecting ballistic-photons using polarization gating
Author(s) -
Miloš Šormaz,
Patrick Jenny
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.023746
Subject(s) - optics , monte carlo method , photon , polarization (electrochemistry) , gating , physics , scattering , numerical aperture , contrast (vision) , metrology , wavelength , physiology , statistics , chemistry , mathematics , biology
In this paper a new approach to improve contrast in optical subsurface imaging is presented. The method is based on time-resolved reflectance and selection of ballistic photons using polarization gating. Numerical studies with a statistical Monte Carlo method also reveal that weakly scattered diffuse photons can be eliminated by employing a small aperture and that the contrast improvement strongly depends on the single-scattering phase function. A possible experimental setup is discussed in the conclusions.