Engineered second harmonic generation in photonic-crystal slabs consisting of centrosymmetric materials

Xiangang Luo, Teruya Ishihara

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Second harmonic generation (SHG) based on a quadrupole effect in photonic-crystal slabs (PCSs) consisting of centrosytnmetric materials is presented. The results show that SHG occurs when the pump mode with an asymmetric electromagnetic field distribution is coupled with the eigenmode of the PCS. Theoretical and experimental studies also show that the phase match condition can be achieved without resorting to birefringence or a quasi-phase-match condition when two conditions coincide: the fundamental mode and the second harmonic mode are the eigenmodes of the PCS, and they can be excited simultaneously by tuning the dispersion curves so that they cross by changing the thickness of the waveguide layer The concept of the asymmetry of the electromagnetic field spatial mode can be used in a microcavity to obtain harmonic generation.

Original languageEnglish
Pages (from-to)905-912
Number of pages8
JournalAdvanced Functional Materials
Volume14
Issue number9
DOIs
Publication statusPublished - 2004 Sep 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry

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