Laser manipulation and fixation of single gold nanoparticles in solution at room temperature

DOI PDF 被引用文献25件
  • Syoji Ito
    Department of Applied Physics and Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
  • Hiroyuki Yoshikawa
    Department of Applied Physics and Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
  • Hiroshi Masuhara
    Department of Applied Physics and Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan

書誌事項

公開日
2002-01-21
DOI
  • 10.1063/1.1432753
公開者
AIP Publishing

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説明

<jats:p>A method to fix single gold nanoparticles on glass substrate was demonstrated in solution at room temperature by utilizing focused intense laser beams. A single gold nanoparticle of 80 nm was optically trapped and manipulated to a surface of a glass substrate, and then fixed on it by irradiation with ultraviolet (UV) laser light. Suitable laser fluence range for the fixation was determined to be 32–60 mJ/cm2, above which the individual nanoparticles were fragmented to several smaller fragments of 10 to 40 nm. The fixation mechanism is discussed in view of pulsed-laser-induced transient temperature elevation.</jats:p>

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