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Strong optomechanical interaction in a bilayer photonic crystal

机译:双层光子晶体中的强光机械相互作用

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摘要

We fabricated bilayer photonic crystal (PhC) as large as 20 × 30 μm possessing 200-nm-thick slabs and a 200-nm-thick air gap. Input power dependence of reflectance spectra indicates air gap reduction by 3.6 nm. Combining it with finite element method calculation we estimate optomechanically generated force per unit stored energy as 0.4 μN/pJ, exhibiting strong optomechanical coupling. RF spectrum of reflected light reveals intensity modulation by thermal vibration of bilayer PhC, which also shows strong interaction of optical resonance mode and mechanical mode of bilayer PhC.
机译:我们制造了双层光子晶体(PhC),其尺寸为20×30μm,具有200 nm的厚平板和200 nm的气隙。反射光谱的输入功率依赖性表明气隙减少了3.6 nm。结合有限元方法计算,我们估计每单位存储能量的光机械力为0.4μN/ pJ,表现出很强的光机械耦合。反射光的RF光谱揭示了双层PhC的热振动引起的强度调制,这也表明了双层PhC的光学共振模式和机械模式之间有很强的相互作用。

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  • 来源
    《Physical review》 |2010年第12期|p.121101.1-121101.4|共4页
  • 作者单位

    NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan CREST-JST, 4-1-8, Honmachi, Kawaguchi, Saitama 332-0012, Japan;

    NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan CREST-JST, 4-1-8, Honmachi, Kawaguchi, Saitama 332-0012, Japan;

    NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan CREST-JST, 4-1-8, Honmachi, Kawaguchi, Saitama 332-0012, Japan;

    NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan CREST-JST, 4-1-8, Honmachi, Kawaguchi, Saitama 332-0012, Japan;

    NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan CREST-JST, 4-1-8, Honmachi, Kawaguchi, Saitama 332-0012, Japan;

    ATT Photonics Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan;

    ATT Photonics Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan;

    NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan CREST-JST, 4-1-8, Honmachi, Kawaguchi, Saitama 332-0012, Japan;

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  • 正文语种 eng
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  • 关键词

    photonic bandgap materials; vibrations of membranes and plates; brownian motion;

    机译:光子带隙材料;膜和板的振动;布朗运动;

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