title: Transport in Sawtooth photonic lattices.
abstract: We investigate, theoretically and experimentally, a photonic realization of a Sawtooth lattice. This special lattice exhibits two spectral bands, with one of them experiencing a complete collapse to a highly degenerate flat band for a special set of inter-site coupling constants. We report the observation of different transport regimes, including strong transport inhibition due to the appearance of the non-diffractive flat band. Moreover, we excite localized Shockley surface states residing in the gap between the two linear bands.
authors.forename: Steffen
authors.initials: S
authors.lastname: Weimann
authors.forename: Luis
authors.initials: L
authors.lastname: Morales-Inostroza
authors.forename: Bastián
authors.initials: B
authors.lastname: Real
authors.forename: Camilo
authors.initials: C
authors.lastname: Cantillano
authors.forename: Alexander
authors.initials: A
authors.lastname: Szameit
authors.forename: Rodrigo A
authors.initials: RA
authors.lastname: Vicencio