Light Intensity Enhancement and Optical Nonlinear Response due to Localized Surface Plasmons in Nanosize Ag Sphere

• Okamoto Toshihiro

  Department of Optical Science and Technology, Faculty of Engineering, Univerity of Tokushima

• Haraguchi Masanobu

  Department of Optical Science and Technology, Faculty of Engineering, Univerity of Tokushima

• Fukui Masuo

  Department of Optical Science and Technology, Faculty of Engineering, Univerity of Tokushima

抄録

Field enhancement due to localized surface plasmons excited in nanosize Ag and coated Ag spheres has been numerically studied using the Mie theory. It has been found that light intensity enhancement becomes maximum at an appropriate diameter of spheres. This maximum has been expected to be determined from mediation of a size-dependent light-confinement effect and a size-dependent dielectric constant of Ag spheres. Such field enhancement should play a crucial role in observing strong nonlinear optical effects. For a nanosize metal sphere coated with a Kerr-nonlinear film, we have succeeded in finding optical switching and optical bistability phenomena using the modified Mie theory.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 43 (9A), 6507-6512, 2004

  The Japan Society of Applied Physics

キーワード

• localized surface plasmon
• Mie theory
• Kerr-nonlinearly
• nanosize Ag sphere
• light intensity enhancement

詳細情報

• CRID: 1390282681240973184
• NII論文ID: 10013574972
• NII書誌ID: AA10457675
• DOI: 10.1143/jjap.43.6507
• ISSN: 13474065
• ISSN: 00214922
• NDL書誌ID: 7080347
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7080347
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.6507
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.6507/pdf
• 本文言語コード: en
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