title: Impact of loss on the wave dynamics in photonic waveguide lattices.
abstract: We analyze the impact of loss in lattices of coupled optical waveguides and find that, in such a case, the hopping between adjacent waveguides is necessarily complex. This results not only in a transition of the light spreading from ballistic to diffusive, but also in a new kind of diffraction that is caused by loss dispersion. We prove our theoretical results with experimental observations.
authors.affiliation: Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Golshani
authors.affiliation: Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Weimann
authors.affiliation: Department of Physics and Institute for Plasma Research, Kharazmi University, Tehran 15614, Iran.
authors.forename: Kh
authors.initials: Kh
authors.lastname: Jafari
authors.affiliation: Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran.
authors.forename: M Khazaei
authors.initials: MK
authors.lastname: Nezhad
authors.affiliation: Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran and Center of Excellence in Complex Systems and Condensed Matter (CSCM), Sharif University of Technology, Tehran 145888-9694, Iran and Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Langari
authors.affiliation: Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran.
authors.forename: A R
authors.initials: AR
authors.lastname: Bahrampour
authors.affiliation: Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Eichelkraut
authors.affiliation: Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran and Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 89694-14588, Iran.
authors.forename: S M
authors.initials: SM
authors.lastname: Mahdavi
authors.affiliation: Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Szameit