title: Spatial supercontinuum generation in nonlinear photonic lattices.
abstract: We show that two Bloch modes launched into a nonlinear photonic lattice evolve into a comb or a supercontinuum of spatial frequencies, exhibiting a sensitive dependence on the difference between the quasi-momenta of the two initially excited modes. This phenomenon results from four-wave mixing combined with exchanges of momentum between the optical field and the lattice.
authors.affiliation: Department of Physics and Solid State Institute, Technion, Haifa 32000, Israel.
authors.forename: Ofer
authors.initials: O
authors.lastname: Manela
authors.forename: Guy
authors.initials: G
authors.lastname: Bartal
authors.forename: Mordechai
authors.initials: M
authors.lastname: Segev
authors.forename: Hrvoje
authors.initials: H
authors.lastname: Buljan