title: Light transport through the band-edge states of Fibonacci quasicrystals.
abstract: The propagation of light in nonperiodic quasicrystals is studied by ultrashort pulse interferometry. Samples consist of multilayer dielectric structures of the Fibonacci type and are realized from porous silicon. We observe mode beating and strong pulse stretching in the light transport through these systems, and a strongly suppressed group velocity for frequencies close to a Fibonacci band gap. A theoretical description based on transfer matrix theory allows us to interpret the results in terms of Fibonacci band-edge resonances.
authors.affiliation: INFM and Department of Physics, University of Trento, I-38050, Povo, Italy. dalnegro@science.unitn.it
authors.forename: Luca
authors.initials: L
authors.lastname: Dal Negro
authors.forename: Claudio J
authors.initials: CJ
authors.lastname: Oton
authors.forename: Zeno
authors.initials: Z
authors.lastname: Gaburro
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Pavesi
authors.forename: Patrick
authors.initials: P
authors.lastname: Johnson
authors.forename: Ad
authors.initials: A
authors.lastname: Lagendijk
authors.forename: Roberto
authors.initials: R
authors.lastname: Righini
authors.forename: Marcello
authors.initials: M
authors.lastname: Colocci
authors.forename: Diederik S
authors.initials: DS
authors.lastname: Wiersma