Light Transport through the Band-Edge States of Fibonacci Quasicrystals

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Authors

Luca Dal Negro · University of Trento

Claudio J. Otón · University of Trento

Z. Gaburro · University of Trento

Lorenzo Pavesi · University of Trento

P. M. Johnson · Van der Waals-Zeeman Institute

Ad Lagendijk · Van der Waals-Zeeman Institute

Roberto Righini ·

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.

Topics & Keywords

Quasicrystal Structures and Properties Silicon Nanostructures and Photoluminescence Phase-change materials and chalcogenides

Publication Details

Published in: Physical Review Letters

Volume 90, Issue 5, pp. 055501-055501

DOI: 10.1103/physrevlett.90.055501

Field-Weighted Citation Impact: 12.10

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Light Transport through the Band-Edge States of Fibonacci Quasicrystals

Authors

Abstract

Topics & Keywords

Publication Details