envelope soliton

envelope soliton

[′en·və‚lōp ′säl·ə‚tän]
(physics)
A rapidly oscillating wave that propagates with a characteristic constant shape, and can be pictured as cut off by a smoothly modulating envelope.
References in periodicals archive ?
These envelope solitons are periodic in time and/or in space, and exhibit a modulation pattern in which an initially small hump in the envelope is amplified significantly due to the focusing properties of the deep-water NLS equation.
In this sense it is possible to state that the NLS envelope solitons do not possess any special properties that distinguish them from nonsoliton wave groups.
This conclusion applies to envelope solitons as well as to wave trains with an arbitrary envelope shape and an initially narrow spectrum.