Parametric generation of forward and phase-conjugated spin-wave bullets in magnetic films.
Phys Rev Lett
; 94(16): 167202, 2005 Apr 29.
Article
em En
| MEDLINE
| ID: mdl-15904263
ABSTRACT
We show experimentally as well as by numerical simulation that interaction of a linear two-dimensional spin-wave packet with quasiuniform pulsed pumping leads to the formation of strongly self-focused nonlinear spin-wave bullets propagating in both forward and reversed directions. The focusing of the reversed, phase-conjugated wave bullet is stronger than that of the forward one, because not only the nonlinear four-wave self-focusing effect but also linear focusing due to two-dimensional phase conjugation contributes to the focusing of the reversed bullet.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article