Resonant second-harmonic generation and mode dispersion in photonic crystal waveguides

L. C. Andreani*, G. Guizzetti, M. Patrini, G. Vecchi, A. M. Malvezzi, L. Businaro, F. Romanato, E. Di Fabrizio, A. Passaseo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Linear and nonlinear optical measurements on GaAs/AlGaAs photonic crystal waveguides with square lattice are reported. Second-harmonic generation in reflection shows a resonant enhancement when the pump beam is frequency- and momentum-matched to a photonic mode in the slab. A full three-dimensional theory of waveguide-embedded photonic crystals allows to determine the dispersion of photonic modes and the intrinsic radiative losses of quasi-guided modes lying above the light line.

Original languageEnglish (US)
Pages (from-to)428-431
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Issue number3
StatePublished - Aug 2003
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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