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Proceedings Paper

Instantaneous and noninstantaneous nonlinear effects in femtosecond pulse propagation
Author(s): Hilary K. Eaton; Scott A. Diddams; Alex A. Zozulya; Amelia G. Van Engen; Tracy Sharp Clement
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Paper Abstract

Propagation of intense femtosecond pulses in solids and liquids is investigated experimentally and numerically. A brief review of experiments in fused silica that reveal complicated spatio-temporal dynamics including temporal pulse splitting is presented. Experiments in methanol show the expected effects of linear dispersion and an instantaneous Kerr nonlinearity as well as a contribution from a noninstantaneous nonlinearity with a response time on the order of 10 femtoseconds. Propagation in these two systems is modeled using a modified (3 + 1)-dimensional nonlinear Schroedinger equation (NLSE) that includes nonlinear shock and space-time coupling terms and a (1 + 1)-dimensional NLSE that includes a response time of the nonlinear part of the refractive index.

Paper Details

Date Published: 23 June 1999
PDF: 9 pages
Proc. SPIE 3609, Optical Pulse and Beam Propagation, (23 June 1999); doi: 10.1117/12.351053
Show Author Affiliations
Hilary K. Eaton, Univ. of Colorado/Boulder and National Institute of Standards and Technology (United States)
Scott A. Diddams, Univ. of Colorado/Boulder and National Institute of Standards and Technology (United States)
Alex A. Zozulya, Worcester Polytechnic Institute (United States)
Amelia G. Van Engen, Univ. of Colorado/Boulder and National Institute of Standards and Technology (United States)
Tracy Sharp Clement, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 3609:
Optical Pulse and Beam Propagation
Yehuda B. Band, Editor(s)

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