A. V. Borovskii, M. V. Vladimirov, Ya. M. Zhileikin, V. V. Korobkin, E. A. Makarova, “Formation of an extended homogeneous optical channel in a nonlinear medium with focusing of the laser radiation by an axicon”, Kvantovaya Elektronika, 1999, Volume 29, Number 1,Pages <nobr>71

Nonlinear optical phenomena

Formation of an extended homogeneous optical channel in a nonlinear medium with focusing of the laser radiation by an axicon

A. V. Borovskii^a, M. V. Vladimirov^b, Ya. M. Zhileikin^b, V. V. Korobkin^a, E. A. Makarova^b

^a A. M. Prokhorov General Physics Institute, Russian Academy of Sciences
^b Lomonosov Moscow State University, Research Computing Center

Abstract: It is shown theoretically that, when a laser beam is focused by an axicon (a conical lens) in a Kerr-type nonlinear medium with nondissipative saturation of a square-root nonlinearity, an extended homogeneous optical channel may form and its length may be comparable with the length of the axicon caustic.

PACS: 42.65.Wi, 42.68.Ay

Received: 29.01.1999