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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 6 — Mar. 21, 2005
  • pp: 2105–2110

Optical precursors and Beer�??s law violations; non-exponential propagation losses in water

Ursula Gibson and Ulf �?sterberg  »View Author Affiliations


Optics Express, Vol. 13, Issue 6, pp. 2105-2110 (2005)
http://dx.doi.org/10.1364/OPEX.13.002105


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Abstract

We develop a model for exponential decay of broadband pulses, and examine its implications for experiments on optical precursors. One of the signature features of Brillouin precursors is attenuation with a less rapid decay than that predicted by Beer�??s Law. Depending on the pulse parameters and the model that is adopted for the dielectric properties of the medium, the limiting z-dependence of the loss has been described as z1/2, z1/3, exponential, or, in more detailed descriptions, some combination of the above. Experimental results in the search for precursors are examined in light of the different models, and a stringent test for sub-exponential decay is applied to data on propagation of 500 femtosecond pulses through 1-5 meters of water.

© 2005 Optical Society of America

OCIS Codes
(010.7340) Atmospheric and oceanic optics : Water
(320.7120) Ultrafast optics : Ultrafast phenomena

ToC Category:
Research Papers

History
Original Manuscript: November 29, 2004
Revised Manuscript: March 10, 2005
Published: March 21, 2005

Citation
Ursula Gibson and Ulf �?sterberg, "Optical precursors and Beer�??s law violations; non-exponential propagation losses in water," Opt. Express 13, 2105-2110 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-6-2105


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References

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