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Title: Optical femtosecond filaments in condensed media

Abstract

The self-guiding of femtosecond light pulses in dense materials is investigated both theoretically and numerically for various laser wavelengths. Special attention is paid on chromatic dispersion, plasma gain, and multiphoton absorption in the nonlinear evolution of ultrashort filaments. First, by mapping the dispersion versus the ratio of beam power over the critical power for self-focusing we justify the existence of special propagation regimes, in which the beam self-channels with weak plasma response. Second, we prove that at low wavelengths multiphoton losses can quench the emission of free electrons, which justifies recent experimental observations of no apparent electron emission in water.

Authors:
; ;  [1]
  1. Departement de Physique Theorique et Appliquee, CEA-DAM/Ile de France, Boite Postale 12, 91680 Bruyeres-le-Chatel (France)
Publication Date:
OSTI Identifier:
20863976
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 74; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevA.74.043813; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ABSORPTION; ELECTRON EMISSION; ELECTRONS; EVOLUTION; FILAMENTS; FOCUSING; GAIN; LASER RADIATION; LIGHT TRANSMISSION; LOSSES; MAPPING; MULTI-PHOTON PROCESSES; NONLINEAR PROBLEMS; PLASMA; PULSES; VISIBLE RADIATION; WATER; WAVELENGTHS

Citation Formats

Skupin, S, Nuter, R, and Berge, L. Optical femtosecond filaments in condensed media. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.74.043813.
Skupin, S, Nuter, R, & Berge, L. Optical femtosecond filaments in condensed media. United States. https://doi.org/10.1103/PHYSREVA.74.043813
Skupin, S, Nuter, R, and Berge, L. 2006. "Optical femtosecond filaments in condensed media". United States. https://doi.org/10.1103/PHYSREVA.74.043813.
@article{osti_20863976,
title = {Optical femtosecond filaments in condensed media},
author = {Skupin, S and Nuter, R and Berge, L},
abstractNote = {The self-guiding of femtosecond light pulses in dense materials is investigated both theoretically and numerically for various laser wavelengths. Special attention is paid on chromatic dispersion, plasma gain, and multiphoton absorption in the nonlinear evolution of ultrashort filaments. First, by mapping the dispersion versus the ratio of beam power over the critical power for self-focusing we justify the existence of special propagation regimes, in which the beam self-channels with weak plasma response. Second, we prove that at low wavelengths multiphoton losses can quench the emission of free electrons, which justifies recent experimental observations of no apparent electron emission in water.},
doi = {10.1103/PHYSREVA.74.043813},
url = {https://www.osti.gov/biblio/20863976}, journal = {Physical Review. A},
issn = {1050-2947},
number = 4,
volume = 74,
place = {United States},
year = {Sun Oct 15 00:00:00 EDT 2006},
month = {Sun Oct 15 00:00:00 EDT 2006}
}