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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 19 — Sep. 17, 2007
  • pp: 12483–12497

Using ultra-short pulses to determine particle size and density distributions

Chris J. Lee, Peter J. M. van der Slot, and Klaus -J. Boller  »View Author Affiliations


Optics Express, Vol. 15, Issue 19, pp. 12483-12497 (2007)
http://dx.doi.org/10.1364/OE.15.012483


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Abstract

We analyze the time dependent response of strongly scattering media (SSM) to ultra-short pulses of light. A random walk technique is used to model the optical scattering of ultra-short pulses of light propagating through media with random shapes and various packing densities. The pulse spreading was found to be strongly dependent on the average particle size, particle size distribution, and the packing fraction. We also show that the intensity as a function of time-delay can be used to analyze the particle size distribution and packing fraction of an optically thick sample independently of the presence of absorption features. Finally, we propose an all new way to measure the shape of ultra-short pulses that have propagated through a SSM.

© 2007 Optical Society of America

OCIS Codes
(290.1350) Scattering : Backscattering
(290.5850) Scattering : Scattering, particles
(290.7050) Scattering : Turbid media
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Scattering

History
Original Manuscript: April 4, 2007
Revised Manuscript: May 7, 2007
Manuscript Accepted: May 8, 2007
Published: September 14, 2007

Virtual Issues
Vol. 2, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Christopher J. Lee, Peter J. M. van der Slot, and Klaus -J. Boller, "Using ultra-short pulses to determine particle size and density distributions," Opt. Express 15, 12483-12497 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-19-12483


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