2008年5月
Wavelength dispersion of nonlinear dielectric function of Cu nanoparticle materials
OPTICS EXPRESS
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- 巻
- 16
- 号
- 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
- ID情報
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- DOI : 10.1364/OE.16.007471
- ISSN : 1094-4087
- Web of Science ID : WOS:000256469800073