Strong dispersive effects in the light-scattering mean free path in photonic gaps

David Garcia-Fernández, R. Sapienza, L.S. Froufe-Perez, C. Lopez

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We have performed measurements of the scattering mean free path s in photonic crystals with different and controlled amounts of disorder. In the most perfect crystals, 1 order of magnitude chromatic variation in s for just 3% shift around the band gap 27 nm in wavelength is obtained. It is argued that the s dispersion is governed by both the total density of states and the group index in the incident direction, with this last quantity being responsible for the large dispersion of s.
Original languageEnglish
JournalPhysical Review B. Condensed Matter and Materials Physics
Volume79
Pages (from-to)241109-4
ISSN0163-1829
DOIs
Publication statusPublished - 2009
Externally publishedYes

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