Artículos de revistas
Transport in Sawtooth photonic lattices
Fecha
2016Registro en:
Optics Letters. Volumen: 41 Número: 11 Páginas: 2414-2417 (2016)
10.1364/OL.41.002414
Autor
Weimann, Steffen
Morales Inostroza, Luis
Real, Bastián
Cantillano, Camilo
Szameit, Alexander
Vicencio Poblete, Rodrigo
Institución
Resumen
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. (C) 2016 Optical Society of America.