Nonlinear dynamics of two-color optical vortices in lithium niobate crystals

Date

2008-04-03

Authors

Dreischuh, Alexander
Neshev, Dragomir
Kolev, Vesselin Z
Saltiel, Solomon
Samoc, Marek
Krolikowski, Wieslaw
Kivshar, Yuri

Journal Title

Journal ISSN

Volume Title

Publisher

Optical Society of America

Abstract

We study experimentally the nonlinear dynamics of two-color optical vortex beams in the presence of second-harmonic generation combined with the effects of photo- and thermal refraction, as well as self- and induced-phase modulation.We use an iron-doped lithium niobate crystal as a nonlinear medium for the vortex propagation and observe experimentally, depending on the laser wavelength, a decay of a double-charge vortex, splitting and reshaping of background beam, pattern formation, and controllable nonlinear rotation of a vortex pair.

Description

Keywords

Nonlinear optics, transverse effects in, Nonlinear optics, Frequency conversion, Self-action effects, Photorefractive nonlinear optics

Citation

Optics Express 16.8 (2008): 5406-5420

Source

Optics Express

Type

Journal article

Book Title

Entity type

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