Slow light enhanced optical nonlinearity in a silicon photonic crystal coupled-resonator optical waveguide

Nobuyuki Matsuda, Takumi Kato, Ken Ichi Harada, Hiroki Takesue, Eiichi Kuramochi, Hideaki Taniyama, Masaya Notomi

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

We demonstrate highly enhanced optical nonlinearity in a coupled-resonator optical waveguide (CROW) in a four-wave mixing experiment. Using a CROW consisting of 200 coupled resonators based on width-modulated photonic crystal nanocavities in a line defect, we obtained an effective nonlinear constant exceeding 10,000/W/m, thanks to slow light propagation combined with a strong spatial confinement of light achieved by the wavelength-sized cavities.

Original languageEnglish
Pages (from-to)19861-19874
Number of pages14
JournalOptics Express
Volume19
Issue number21
DOIs
Publication statusPublished - 2011 Oct 10

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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