Imaging through scattering materials is an important research area that is generally limited to medical diagnostic applications. Published techniques typically use a method of time- or coherence-gating of ballistic photons that separates these early photons in order to acquire an image without the large background created by the later-arriving diffuse light. Because of the limited number of ballistic photons and the typically low signal-to-noise ratios of these schemes, a large number of averages or scans is necessary. If the desired image is changing rapidly, however, single images of this transient are required. We have therefore evaluated a two-dimensional, single-shot method that can be used for imaging rapid transients in scattering environments.
© 2004 Optical Society of America
(190.3270) Nonlinear optics : Kerr effect
(280.1740) Remote sensing and sensors : Combustion diagnostics
(280.2470) Remote sensing and sensors : Flames
(280.2490) Remote sensing and sensors : Flow diagnostics
(290.7050) Scattering : Turbid media
Megan Paciaroni and Mark Linne, "Single-Shot, Two-Dimensional Ballistic Imaging through Scattering Media," Appl. Opt. 43, 5100-5109 (2004)