Reverse saturable scattering of a single gold nanoparticle

Hsuan Lee, Hsueh Yu Wu, Yen Ta Huang, Tung Yu Su, Yasuo Yonemaru, Masahito Yamanaka, Ryosuke Oketani, Satoshi Kawata, Satoru Shoji, Katsumasa Fujita, Shi Wei Chu

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish
Title of host publicationSingle Molecule Spectroscopy and Superresolution Imaging VII
ISBN (Print)9780819498632
Publication statusPublished - 2014
Externally publishedYes
EventSingle Molecule Spectroscopy and Superresolution Imaging VII - San Francisco, CA, United States
Duration: Feb 1 2014Feb 2 2014

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceSingle Molecule Spectroscopy and Superresolution Imaging VII
Country/TerritoryUnited States
CitySan Francisco, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging
  • Biomaterials


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