Light transport through the bandedge states of Fibonacci quasicrystals


Dal Negro, Luca and Oton, Claudio J. and Gaburro, Zeno and Pavesi, Lorenzo and Johnson, Patrick and Lagendijk, Ad and Righini, Roberto and Colocci, Marcello and Wiersma, Diederik S. (2003) Light transport through the bandedge states of Fibonacci quasicrystals. Physical Review Letters, 90 (5). 055501-1-055501-4. ISSN 0031-9007

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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.
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Copyright:© 2003 The American Physical Society
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Metis ID: 213016