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Reverse Saturable Scattering of a Single Gold Nanoparticle

机译:单个金纳米粒子的反向饱和散射

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摘要

Recently, we discovered, for the first time, reverse saturable scattering in a single gold nanoparticle. When incident intensity increases, the scattering intensity dependence of 80-nm gold nanoparticles evolves from linear, to saturation, and to reverse saturation sequentially. The intensity dependence in reverse saturable scattering region is significantly steeper than that in the linear region. With the aid of a confocal microscope, the full width half maximum of the single-particle point spread function can be reduced down to 80 nm, which is beyond the diffraction limit. Our finding shows great potential for superresolution imaging application without bleaching.
机译:最近,我们首次发现了单个金纳米粒子中的反向饱和散射。当入射强度增加时,80-nm金纳米颗粒的散射强度依赖性从线性演变为饱和,然后依次变为饱和。反向饱和散射区中的强度依赖性比线性区中的强度依赖性明显更陡。借助于共聚焦显微镜,单颗粒点扩散函数的全宽半峰可以减小到80 nm,这超出了衍射极限。我们的发现显示出在不漂白的情况下超分辨率成像应用的巨大潜力。

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  • 来源
  • 会议地点 San Francisco CA(US)
  • 作者单位

    Department of Physics, National Taiwan University, No.1 Sec. 4, Roosevelt Rd., Taipei, Taiwan ROC;

    Department of Physics, National Taiwan University, No.1 Sec. 4, Roosevelt Rd., Taipei, Taiwan ROC;

    Department of Physics, National Taiwan University, No.1 Sec. 4, Roosevelt Rd., Taipei, Taiwan ROC;

    Department of Physics, National Taiwan University, No.1 Sec. 4, Roosevelt Rd., Taipei, Taiwan ROC;

    Department of Applied Physics, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871 Japan;

    Department of Applied Physics, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871 Japan;

    Department of Applied Physics, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871 Japan;

    Department of Applied Physics, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871 Japan;

    Department of Applied Physics, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871 Japan;

    Department of Applied Physics, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871 Japan;

    Department of Physics, National Taiwan University, No.1 Sec. 4, Roosevelt Rd., Taipei, Taiwan ROC,Molecular Imaging Center, National Taiwan University, No.1 Sec. 4, Roosevelt Rd., Taipei, Taiwan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nonlinearity; Localized Surface Plasmon Resonance; Confocal Microscopy; Point Spread Function;

    机译:非线性;局部表面等离子体共振共聚焦显微镜点扩散功能;

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