Szameit, A.A.SzameitPertsch, T.T.PertschNolte, S.S.NolteTünnermann, A.A.Tünnermann2022-03-042022-03-042008https://publica.fraunhofer.de/handle/publica/21544210.1016/j.optcom.2007.11.049We discuss the discrete Talbot effect in one- and two-dimensional waveguide lattices under the influence of an external potential. It is shown that the field recovery can be precisely tuned by changing the gradient of the potential. In a two-dimensional configuration, the diagonal coupling does not affect the period of recovery.enwave-guide arrayoptical bloch oscillationsurface soliton620535journal article