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Induced focusing due to counter-propagation of a pair of bright and dark optical beams in self-defocusing Kerr media

Induced focusing due to counter-propagation of a pair of bright and dark optical beams in self-defocusing Kerr media,10.1016/j.ijleo.2010.12.010,Optik

Induced focusing due to counter-propagation of a pair of bright and dark optical beams in self-defocusing Kerr media  
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We present two-dimensional numerical simulations of a nonlinear optical system made of a bright probe and a dark pump beam that counter propagate in a thin slice of self-defocusing Kerr media, simultaneously. The numerical results show that although the medium is self-defocusing to both pump and probe beam, a profile compression occurs under some conditions, and the weak bright probe beam is focused due to cross-phase modulation. The influence of the characteristics of beams and medium length on the probe beam compression is also investigated.
Journal: Optik , vol. 122, no. 21, pp. 1957-1960, 2011
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