Nonlinear X-wave: Difference between revisions
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In [[physics]], a '''Nonlinear X-wave''' ([[abbreviation|abbr.]] '''NLX''') is a [[multi-dimensional]] [[wave]] which can travel without [[distortion]]. |
In [[physics]], a '''Nonlinear X-wave''' ([[abbreviation|abbr.]] '''NLX''') is a [[multi-dimensional]] [[wave]] which can travel without [[distortion]]. |
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At variance with [[ |
At variance with [[X-wave]]s, a [[Nonlinear X-wave]] does exist in the presence of nonlinearity, |
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and in many cases it self-generates from a [[gaussian]] (in any direction) [[wave packet]]. |
and in many cases it self-generates from a [[gaussian]] (in any direction) [[wave packet]]. |
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So far, Nonlinear X-waves have been only observed in [[nonlinear]] [[optics]] [[experiment]]s, and have been [[predicted]] in a variety of nonlinear media including [[Bose-Einstein condensate]]s. |
So far, Nonlinear X-waves have been only observed in [[nonlinear]] [[optics]] [[experiment]]s, and have been [[predicted]] in a variety of nonlinear media including [[Bose-Einstein condensate]]s. |
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== References == |
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* The first article [http://arxiv.org/abs/physics/0204066] on NLX appeared in the review Physical Review Letters: Phys. Rev. Lett. 90, 170406 (2003) [http://link.aps.org/abstract/PRL/v90/e170406] |
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Revision as of 10:50, 23 November 2006
In physics, a Nonlinear X-wave (abbr. NLX) is a multi-dimensional wave which can travel without distortion.
At variance with X-waves, a Nonlinear X-wave does exist in the presence of nonlinearity, and in many cases it self-generates from a gaussian (in any direction) wave packet.
The distinctive feature of a NLX is its "biconical" shape, (see figure) which appears as an "X" in any section plain containing the wave peak and the direction of propagation.
So far, Nonlinear X-waves have been only observed in nonlinear optics experiments, and have been predicted in a variety of nonlinear media including Bose-Einstein condensates.