Motion control of ensembles of ordered optical vortices generated on finite extent background
نویسندگان
چکیده
Vortex motion in ordered structures is analysed numerically in the frame of the 2D nonlinear Schrodinger equation. ̈ Ž . Analogies with superfluid dynamics are presented. It was found that coherent interaction of optical vortex solitons OVSs leads to vortex motion, which can be adequately described by the Kelvin law in superfluid dynamics for large offsets between the OVSs. Cancelation of motion in some spatial configurations of vortices and vortex lattices is observed. The possibility to steer the motion of vortex ensembles is discussed. q 1998 Elsevier Science B.V. All rights reserved. PACS: 42.65.–k; 42.65.Sf; 42.65.Tg; 42.65.Wi
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