Fractional vortex dipoles of edge-screw type in self-focusing Kerr nonlinear media

G. Maleshkov; P. Hansinger; A. Dreischuh; G. G. Paulus

doi:10.1117/12.881862

17 January 2011 Fractional vortex dipoles of edge-screw type in self-focusing Kerr nonlinear media

G. Maleshkov, P. Hansinger, A. Dreischuh, G. G. Paulus

Proceedings Volume 7747, 16th International School on Quantum Electronics: Laser Physics and Applications; 77471P (2011) https://doi.org/10.1117/12.881862
Event: XVI International School on Quantum Electronics: Laser Physics and Applications, 2010, Nessebar, Bulgaria

Abstract

In this work we study the evolution of dark beams of finite length carrying edge-screw phase dislocations in selffocusing Kerr nonlinear media aiming to find appropriate conditions to control the process of filamentation of the background beam. In the case of a single fractional vortex dipole, geometry-controlled conditions for changing the intensity ratio of the peaks and their offset are found. Depending on their orientation, two parallel or two in-line mixed phase dislocations carried by a common background beam are predicted to perturb it and to initiate filamentation of different number of peaks with different spatial distributions.

Citation Download Citation

G. Maleshkov, P. Hansinger, A. Dreischuh, and G. G. Paulus "Fractional vortex dipoles of edge-screw type in self-focusing Kerr nonlinear media", Proc. SPIE 7747, 16th International School on Quantum Electronics: Laser Physics and Applications, 77471P (17 January 2011); https://doi.org/10.1117/12.881862

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