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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 8 — Aug. 1, 2006
  • pp: 1506–1510

Nonstationary time-domain statistics of multiply scattered broadband terahertz pulses

Jeremy Pearce, Kevin Doyle, Zhongping Jian, Jason Deibel, and Daniel M. Mittleman  »View Author Affiliations


JOSA B, Vol. 23, Issue 8, pp. 1506-1510 (2006)
http://dx.doi.org/10.1364/JOSAB.23.001506


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Abstract

We examine the time-domain statistics of randomly varying electric fields generated by multiple scattering of single-cycle electromagnetic pulses in a random medium. This analysis emphasizes the fact that these measured random fields are not stationary, as is commonly assumed for diffusing photons generated with a narrowband light source. We demonstrate that the nonstationarity is a consequence of the time dependence of the configurationally averaged intensity, and that the statistical properties of the random field can be predicted if this quantity is known. We also discuss an approach for describing the transition from nonstationary to stationary behavior by investigating the degree of stationarity during a short time window. A parameterization of the statistics using a gamma distribution provides a quantifiable measure of the approach to stationarity. Our predictions are in good agreement with experimental observations.

© 2006 Optical Society of America

OCIS Codes
(030.6600) Coherence and statistical optics : Statistical optics
(290.4210) Scattering : Multiple scattering
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: January 23, 2006
Manuscript Accepted: March 30, 2006

Virtual Issues
Vol. 1, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Jeremy Pearce, Kevin Doyle, Zhongping Jian, Jason Deibel, and Daniel M. Mittleman, "Nonstationary time-domain statistics of multiply scattered broadband terahertz pulses," J. Opt. Soc. Am. B 23, 1506-1510 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-8-1506


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