MISC

2008年5月

Wavelength dispersion of nonlinear dielectric function of Cu nanoparticle materials

OPTICS EXPRESS
  • Yoshihiko Takeda
  • ,
  • Hiroyoshi Momida
  • ,
  • Masato Ohnuma
  • ,
  • Takahisa Ohno
  • ,
  • Naoki Kishimoto

16
10
開始ページ
7471
終了ページ
7480
記述言語
英語
掲載種別
DOI
10.1364/OE.16.007471
出版者・発行元
OPTICAL SOC AMER

The wavelength dispersions of third-order nonlinear optical response for Cu nanoparticle materials have been experimentally evaluated from transient spectra measured with the pump-probe method. The evaluated dispersions were analyzed on hot electron contribution using the Maxwell-Garnett approximation with the Drude model for intraband transition and first principles calculation for interband transition. The wavelength dispersion didn't directly reflect the dispersion of a local electric field factor. The interband transition term in hot electron contribution strongly dominated the dispersion around the surface plasmon resonance by Fermi smearing. Intrinsic interband contribution to the nonlinearity was suggested from the analysis. Particle-size and host-medium dependence of the nonlinearity were also simulated. (C) 2008 Optical Society of America.

リンク情報
DOI
https://doi.org/10.1364/OE.16.007471
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000256469800073&DestApp=WOS_CPL
ID情報
  • DOI : 10.1364/OE.16.007471
  • ISSN : 1094-4087
  • Web of Science ID : WOS:000256469800073

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