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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 25 — Sep. 1, 1999
  • pp: 5433–5437

Efficient analysis of temporal broadening of a pulsed focused Gaussian beam in scattering media

Carlo Mar Blanca and Caesar Saloma  »View Author Affiliations


Applied Optics, Vol. 38, Issue 25, pp. 5433-5437 (1999)
http://dx.doi.org/10.1364/AO.38.005433


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Abstract

We show that the temporal broadening of a pulsed, tightly focused TEM00 beam propagating in a scattering medium can be accurately modeled as a convolution between the initial pulse profile and an effective impulse response that is given by the propagation behavior of an infinitely thin pulse in the said medium. The impulse response is obtained with a Monte Carlo (MC) analysis of the propagating photons in the impulse. Our algorithm is 2 orders of magnitude less complex than the full MC solution of the pulse propagation problem. The accuracies, however, are comparable even for scattering path lengths that are 20 times the mean free path.

© 1999 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(110.7050) Imaging systems : Turbid media
(290.4210) Scattering : Multiple scattering
(320.5550) Ultrafast optics : Pulses
(350.5500) Other areas of optics : Propagation

History
Original Manuscript: February 16, 1999
Revised Manuscript: May 14, 1999
Published: September 1, 1999

Citation
Carlo Mar Blanca and Caesar Saloma, "Efficient analysis of temporal broadening of a pulsed focused Gaussian beam in scattering media," Appl. Opt. 38, 5433-5437 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-25-5433

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