Abstract

Bloch oscillations [1] have been a widely studied subject since the late twenties of the last century, giving rise to research in many fields of physics such as solid-state, semiconductor physics, ultracold atoms, optical waveguides and plasmonics. Optical waveguide systems enable sophisticated studies of this complex phenomenon in simple settings. In this work we experimentally demonstrate nontrivial Bloch oscillations in lattices particularly with second-order coupling; an effect which has been proposed theoretically only recently [2].

© 2011 IEEE