title: Tilted wave emission in optical parametric oscillators induced by a bichromatic pumping.
abstract: Tilted wave emission is found in a mean-field model of a degenerate optical parametric oscillator pumped by a bichromatic field with a frequency offset much smaller than the cavity free-spectral range. Tilted wave emission arises due to a nonadiabatic mechanism induced by the slow pump modulation, and disappears when either one of the two pump waves is blocked.
authors.affiliation: Dipartimento di Fisica, Istituto Nazionale per la Fisica della Materia, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy.
authors.forename: Stefano
authors.initials: S
authors.lastname: Longhi