Instantaneous and noninstantaneous nonlinear effects in femtosecond pulse propagation

Published

November 1, 2002

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 September 25, 2023)