Transmission, reflection, and trapping of collimated light beams in diffusive Kerr-like nonlinear media

P. Varatharajah, Alan C Newell, Jerome V Moloney, A. B. Aceves

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

An earlier equivalent-particle theory, describing the propagation of a self-focused light channel at an oblique angle of incidence to the interface separating two nonlinear dielectric media [A. B. Aceves, J. V. Moloney, and A. C. Newell, J. Opt. Soc. Am. B 5, 559 (1988); Phys. Lett. A 129, 231 (1988); Phys. Rev. A 39, 1809 (1989); 39, 1828 (1989)], is extended to include diffusion of the nonlinear excitation within each medium. The theory replaces the computationally intensive problem of beam propagation by the much simpler and intuitive picture of the motion of an equivalent particle in an equivalent potential. This simpler Newtonian dynamical problem provides quantitative information on the asymptotes of the reflected, transmitted, or trapped channels as well as the stability of the latter as a function of increasing diffusion length. Our main results are that increased diffusion makes light transmission more difficult and tends to wash out the local equilibria of the equivalent potential representing unstable or stable TE nonlinear surface waves.

Original languageEnglish (US)
Pages (from-to)1767-1774
Number of pages8
JournalPhysical Review A
Volume42
Issue number3
DOIs
StatePublished - 1990

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light beams
trapping
particle theory
asymptotes
propagation
light transmission
diffusion length
surface waves
incidence
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Transmission, reflection, and trapping of collimated light beams in diffusive Kerr-like nonlinear media. / Varatharajah, P.; Newell, Alan C; Moloney, Jerome V; Aceves, A. B.

In: Physical Review A, Vol. 42, No. 3, 1990, p. 1767-1774.

Research output: Contribution to journalArticle

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