title: Observation of anharmonic Bloch oscillations.
abstract: We report on the experimental observation of Bloch oscillations of an optical wave packet in a lattice with second-order coupling. To this end, we employ zigzag waveguide arrays, in which the second-order coupling can be precisely tuned.
authors: Institute of Applied Physics, Friedrich-Schiller-Universität Jena, Jena, Germany.
authors: Felix
authors: F
authors: Dreisow
authors: Gang
authors: G
authors: Wang
authors: Matthias
authors: M
authors: Heinrich
authors: Robert
authors: R
authors: Keil
authors: Andreas
authors: A
authors: Tünnermann
authors: Stefan
authors: S
authors: Nolte
authors: Alexander
authors: A
authors: Szameit