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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 31, Iss. 4 — Apr. 1, 2014
  • pp: 818–828

Short-pulsed laser transport in two-dimensional scattering media by natural element method

Yong Zhang, Hong-Liang Yi, Ming Xie, and He-Ping Tan  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. 818-828 (2014)
http://dx.doi.org/10.1364/JOSAA.31.000818


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Abstract

The natural element method (NEM) is extended to solve transient radiative transfer (TRT) in two-dimensional semitransparent media subjected to a collimated short laser irradiation. The least-squares (LS) weighted residuals approach is employed to spatially discretize the transient radiative heat transfer equation. First, for the case of the refractive index matched boundary, LSNEM solutions to TRT are validated by comparison with results reported in the literature. Effects of the incident angle on time-resolved signals of transmittance and reflectance are investigated. Afterward, the accuracy of this algorithm for the case of the refractive index mismatched boundary is studied. Finally, the LSNEM is extended to study the TRT in a two-dimensional semitransparent medium with refractive index discontinuity irradiated by the short pulse laser. The effects of scattering albedo, optical thickness, scattering phase function, and refractive index on transmittance and reflectance signals are investigated. Several interesting trends on the time-resolved signals are observed and analyzed.

© 2014 Optical Society of America

OCIS Codes
(000.3860) General : Mathematical methods in physics
(140.7090) Lasers and laser optics : Ultrafast lasers
(290.7050) Scattering : Turbid media
(010.5620) Atmospheric and oceanic optics : Radiative transfer

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 26, 2013
Revised Manuscript: February 20, 2014
Manuscript Accepted: February 21, 2014
Published: March 27, 2014

Virtual Issues
Vol. 9, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Yong Zhang, Hong-Liang Yi, Ming Xie, and He-Ping Tan, "Short-pulsed laser transport in two-dimensional scattering media by natural element method," J. Opt. Soc. Am. A 31, 818-828 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-818

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