کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1539268 996633 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical vortices in self-focusing Kerr nonlinear media
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Optical vortices in self-focusing Kerr nonlinear media
چکیده انگلیسی

In this work we numerically compare the interaction of optical vortices (OVs) in self-defocusing and self-focusing Kerr nonlinear media. We find that the basic scenarios (attraction/repulsion, translation/rotation vs. background) in the interaction of two and three vortices with equal and alternative topological charges (TCs) are the same in both media. However, the vortex dynamics under self-focusing conditions is influenced by the reshaping of the surrounding part of the background. Square structure of OVs with alternating TCs is found to be stable with respect to the vortex positions in self-focusing media. This elementary cell is successfully generalized in a large square array of OVs with alternative TCs which brings ordering in the multiple filamentation of the background beam in self-focusing conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 282, Issue 16, 15 August 2009, Pages 3349–3355
نویسندگان
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