Abstract

The transport of visible and near infrared (MR) photons through dense random media has been the subject of intense recent interest.¹ Important practical aspects of these problems concern the potential uses of diffusing MR light fields to locate objects within turbid media. To this end, photon migration patterns derived from a variety of probes have been employed to study the effects of inhomogeneities on optical path lengths in turbid media. In this paper we discuss recent methods whereby amplitude modulated continuous-wave NIR light sources² are used to provide imaging information about spatial inhomogeneities within turbid media.

© 1994 Optical Society of America