U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Instantaneous and noninstantaneous nonlinear effects in femtosecond pulse propagation

Published

Author(s)

H K. Eaton, Scott Diddams, A G. van Engen, Tracy S. Clement, A A. Zozulya

Abstract

Propagation of intense femtosecond pulses in solids and liquids is investigated experimentally and numerically. Experiments in fusd silica reveal complicated spatio-temporal dunamics including temperal pulse splitting and the generation of spectral continuum. 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. Progagation in these two systems is modeled using a modified three-dimentional nonlinear Schrodinger equation (NLSE) that includes nonlinear shock and space-time coupling terms and a one-dimentional NLSE that includes a reponse time of the the nonlinear part of the refractive index.
Citation
Photonics and Nanostructures-Fundamentals and Applications
Pub Type
Journals

Keywords

nonlinear optics, optical propagation in nonlinear media, ultrafast optics

Citation

Eaton, H. , Diddams, S. , van Engen, A. , Clement, T. and Zozulya, A. (2002), Instantaneous and noninstantaneous nonlinear effects in femtosecond pulse propagation, Photonics and Nanostructures-Fundamentals and Applications (Accessed March 17, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created October 31, 2002, Updated October 12, 2021