Matsuda Nobuyuki, Kato Takumi, Harada Ken-Ichi, Takesue Hiroki, Kuramochi Eiichi, Taniyama Hideaki, Notomi Masaya
NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi 243-0198, Kanagawa, Japan.
Opt Express. 2011 Oct 10;19(21):19861-74. doi: 10.1364/OE.19.019861.
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.
在四波混频实验中，我们在耦合谐振器光波导（CROW）中展示了高度增强的光学非线性。使用由200个基于线缺陷中宽度调制光子晶体纳米腔的耦合谐振器组成的CROW，由于慢光传播与波长尺寸的腔所实现的强光空间限制相结合，我们获得了超过10,000 /W/m的有效非线性常数。
