title: Parametric generation of forward and phase-conjugated spin-wave bullets in magnetic films.
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.
authors.affiliation: Fachbereich Physik, Technische Universität Kaiserslautern, Kaiserslautern, Germany.
authors.forename: A A
authors.initials: AA
authors.lastname: Serga
authors.forename: B
authors.initials: B
authors.lastname: Hillebrands
authors.forename: S O
authors.initials: SO
authors.lastname: Demokritov
authors.forename: A N
authors.initials: AN
authors.lastname: Slavin
authors.forename: P
authors.initials: P
authors.lastname: Wierzbicki
authors.forename: V
authors.initials: V
authors.lastname: Vasyuchka
authors.forename: O
authors.initials: O
authors.lastname: Dzyapko
authors.forename: A
authors.initials: A
authors.lastname: Chumak