title: Accelerating diffraction-free beams in photonic lattices.
abstract: We study nondiffracting accelerating paraxial optical beams in periodic potentials, in both the linear and the nonlinear domains. In particular, we show that only a unique class of z-dependent lattices can support a true accelerating diffractionless beam. Accelerating lattice solitons, autofocusing beams and accelerating bullets in optical lattices are systematically examined.
authors.forename: K G
authors.initials: KG
authors.lastname: Makris
authors.forename: I
authors.initials: I
authors.lastname: Kaminer
authors.forename: R
authors.initials: R
authors.lastname: El-Ganainy
authors.forename: N K
authors.initials: NK
authors.lastname: Efremidis
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Chen
authors.forename: M
authors.initials: M
authors.lastname: Segev
authors.forename: D N
authors.initials: DN
authors.lastname: Christodoulides