Light transport through the bandedge states of Fibonacci quasicrystals

Luca Dal Negro, Claudio J. Oton, Zeno Gaburro, Lorenzo Pavesi, Patrick Johnson, Aart Lagendijk, Roberto Righini, Marcello Colocci, Diederik S. Wiersma

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)
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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.
Original languageEnglish
Article number055501
Number of pages4
JournalPhysical review letters
Volume90
Issue number5
DOIs
Publication statusPublished - 2003

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