Nonlinear dynamics of two-color optical vortices in lithium niobate crystals. Academic Article uri icon


  • 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.

published proceedings

  • Opt Express

author list (cited authors)

  • Dreischuh, A., Neshev, D. N., Kolev, V. Z., Saltiel, S., Samoc, M., Krolikowski, W., & Kivshar, Y. S.

citation count

  • 10

complete list of authors

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

publication date

  • April 2008