Evolution and collapse of a Lorentz beam in Kerr medium

Ooi, Chong Heng Raymond and Chen, R.P. (2011) Evolution and collapse of a Lorentz beam in Kerr medium. Progress In Electromagnetics Research, 121. pp. 39-52. ISSN 1070-4698, DOI https://doi.org/10.2528/pier11081712.

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Official URL: http://www.jpier.org/PIER/pier.php?paper=11081712


The effect of Kerr nonlinearity on a Lorentz beam is investigated by using the nonlinear Schrodinger (NLS) equation. Based on the variational method, the evolution of a Lorentz beam in a Kerr medium is demonstrated and the critical collapse powers of the Lorentz beam are derived. Numerical simulations of the propagation of a Lorentz beam in a Kerr medium show that the beam becomes quasi-circular in a very short distance. Although the beam width of the Lorentz beam broadens, the central part of the beam give rise to a partial collapse.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Electromagnetic-wave propagation; Nonlinear schrodinger-equations; Power-law nonlinearity; Optical solitons; Variational approach; Gaussian-beam; Laser-beams; Fibers; Guides
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 08 Jul 2013 06:43
Last Modified: 09 Oct 2019 07:47
URI: http://eprints.um.edu.my/id/eprint/7959

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