An analytical model for the beam spread function with time dispersion is modeled and validated against Monte Carlo calculations. The model, which is structured on simple statistical concepts and relies on only first and second moments for displacement, angle, and multipath time, is suitable for describing pulsed laser radiation propagation in nonconservative scattering media out to tens of scattering lengths. Numerical examples for marine environments are used to show its robustness and versatility.
© 1998 Optical Society of America
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(010.3640) Atmospheric and oceanic optics : Lidar
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(030.5620) Coherence and statistical optics : Radiative transfer
(290.7050) Scattering : Turbid media
John W. McLean, Jonathan D. Freeman, and Ronald E. Walker, "Beam Spread Function with Time Dispersion," Appl. Opt. 37, 4701-4711 (1998)