title: Slow light enhanced optical nonlinearity in a silicon photonic crystal coupled-resonator optical waveguide.
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.
authors: NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi 243-0198, Kanagawa, Japan. m.nobuyuki@lab.ntt.co.jp
authors: Nobuyuki
authors: N
authors: Matsuda
authors: Takumi
authors: T
authors: Kato
authors: Ken-Ichi
authors: K
authors: Harada
authors: Hiroki
authors: H
authors: Takesue
authors: Eiichi
authors: E
authors: Kuramochi
authors: Hideaki
authors: H
authors: Taniyama
authors: Masaya
authors: M
authors: Notomi
mesh_terms: D003198:Computer Simulation; D003460:Crystallization; D060733:Electromagnetic Radiation; D004583:Electrons; D008027:Light; D015233:Models, Statistical; D055095:Optics and Photonics / Q000379:methods*; D017785:Photons; D012825:Silicon / Q000737:chemistry
chemical_list: D012825:Silicon