title: Negative-frequency resonant radiation.
abstract: Optical solitons or solitonlike states shed light to blueshifted frequencies through a resonant emission process. We predict a mechanism by which a second propagating mode is generated. This mode, called negative resonant radiation, originates from the coupling of the soliton mode to the negative-frequency branch of the dispersion relation. Measurements in both bulk media and photonic-crystal fibers confirm our predictions.
authors.affiliation: Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, Via Valleggio 11, IT-22100 Como, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Rubino
authors.forename: J
authors.initials: J
authors.lastname: McLenaghan
authors.forename: S C
authors.initials: SC
authors.lastname: Kehr
authors.forename: F
authors.initials: F
authors.lastname: Belgiorno
authors.forename: D
authors.initials: D
authors.lastname: Townsend
authors.forename: S
authors.initials: S
authors.lastname: Rohr
authors.forename: C E
authors.initials: CE
authors.lastname: Kuklewicz
authors.forename: U
authors.initials: U
authors.lastname: Leonhardt
authors.forename: F
authors.initials: F
authors.lastname: König
authors.forename: D
authors.initials: D
authors.lastname: Faccio