TY - JOUR
T1 - Nonlinear dynamics of two-color optical vortices in lithium niobate crystals
AU - Dreischuh, Alexander
AU - Neshev, Dragomir N.
AU - Kolev, Vesselin Z.
AU - Saltiel, Solomon
AU - Samoc, Marek
AU - Krolikowski, Wieslaw
AU - Kivshar, Yuri S.
PY - 2008/4/14
Y1 - 2008/4/14
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=42149164947&partnerID=8YFLogxK
U2 - 10.1364/OE.16.005406
DO - 10.1364/OE.16.005406
M3 - Article
SN - 1094-4087
VL - 16
SP - 5406
EP - 5420
JO - Optics Express
JF - Optics Express
IS - 8
ER -