One- and two-dimensional subwavelength solitons in saturable media

Gisin, BV Malomed, BA

Bv. Gisin et Ba. Malomed, One- and two-dimensional subwavelength solitons in saturable media, J OPT SOC B, 18(9), 2001, pp. 1356-1361

22

INGLESE

Article

Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

0740-3224 → ACNP

18

9

2001

1356 - 1361

ISI

0740-3224(200109)18:9<1356:OATSSI>2.0.ZU;2-A

Very narrow, with the width smaller than a wavelength, solitons in (1 + 1)- dimensional and (2 + 1)dimensional versions of cubic-quintic and full satur able models are studied, starting with the full system of the Maxwell's equ ations rather than the paraxial (nonlinear Schrodinger) approximation. For the solitons with both TE and TM polarizations it is shown that there alway s exists a finite minimum width, and the solitons cease to exist at a criti cal value of the propagation constant, at which their width diverges. Full similarity of the results obtained for both nonlinearities suggests that th e same general conclusions apply to narrow solitons in any non-Kerr model. (C) 2001 Optical Society of America.