Nonlocal description of X waves in quadratic nonlinear materials
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Larsen, Peter V; Sorensen, M P; Bang, Ole; Trillo, S; Krolikowski, Wieslaw
Description
We study localized light bullets and X waves in quadratic media and show how the notion of nonlocality can provide an alternative simple physical picture of both types of multidimensional nonlinear waves. For X waves we show that a local cascading limit in terms of a nonlinear Schrödinger equation does not exist—one needs to use the nonlocal description, because the nonlocal response function does not converge toward a δ function. Also, we use the nonlocal theory to show that the coupling to...[Show more]
Collections | ANU Research Publications |
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Date published: | 2006-03-22 |
Type: | Journal article |
URI: | http://hdl.handle.net/10440/706 http://digitalcollections.anu.edu.au/handle/10440/706 |
Source: | Physical Review E-Statistical, Nonlinear and Soft Matter Physics |
DOI: | 10.1103/PhysRevE.73.0366 |
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Larsen_Nonlocal2006.pdf | 852.71 kB | Adobe PDF |
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