Light sources inside photonic crystals

Mischa Megens, Judith E.G.J. Wijnhoven, Ad Lagendijk, Willem L. Vos*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

106 Citations (Scopus)


We have measured the optical fluorescence spectra of dye incorporated in high-quality photonic crystals made from colloids. The spectra reveal a stopgap that is due to Bragg reflection with strikingly reduced attenuation compared with plane-wave transmission. The modified attenuation is independent of the position of the sources in the sample and is brought about by diffuse scattering from defects near the surface. In the presence of a photonic bandgap, the diffuse component would disappear. Thus we have found a simple, unambiguous probe for the presence of photonic bandgaps.

Original languageEnglish
Pages (from-to)1403-1408
Number of pages6
JournalJournal of the Optical Society of America. B: Optical physics
Issue number9
Publication statusPublished - 1 Jan 1999
Externally publishedYes


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