Publications [#262827] of Tuan Vo-Dinh

Papers Published

1. Das, C; Trivedi, A; Mitra, K; Vo-Dinh, T, Experimental and numerical analysis of short-pulse laser interaction with tissue phantoms containing inhomogeneities., Applied optics, vol. 42 no. 25 (September, 2003), pp. 5173-5180, ISSN 0003-6935 [12962398], [doi]
   (last updated on 2026/01/20)

   Abstract:
   The objective is to perform an experimental and numerical study to analyze short-pulse laser propagation through tissue phantoms without and with inhomogeneities embedded in them. For a short-pulse laser the observed optical signal has a distinct temporal shape, and the shape is a function of the medium properties. The scattered temporal transmitted and reflected optical signals are measured experimentally with a streak camera for tissue phantoms irradiated with a short-pulse laser source. A parametric study involving different scattering and absorption coefficients of tissue phantoms and inhomogeneities, as well as the detector positions and orientations, is performed. The temporal and spatial profiles of the scattered optical signals are compared with the numerical modeling results obtained by solving the transient radiative transport equation by using the discrete ordinates technique.

   Keywords:
   absorption coefficients;biological tissues;high-speed optical techniques;laser applications in medicine;light scattering;optical signal detection;phantoms;streak cameras;