Lifetime of Optical Modes in Two Dimensionally Ordered Spheres(Optics and Quantum Electronics)

元データ 2002-01-15 社団法人応用物理学会

概要

We have numerically calculated the lifetimes of optical modes, e. g., a propagating mode, in two-dimensionally (2D) ordered spheres on a glass substrate using a finite-difference time-domain method. The lifetimes of the optical modes excited by the evanescent light in an attenuated total reflection (ATR) geometry are much shorter than those excited by a light source embedded in the 2D ordered spheres on substrates. The spatial distributions of the light intensity associated with the optical modes excited in the ATR geometry are found to be different from those in the case of the embedded light source. The light energy of the optical modes excited in the ATR geometry flows extending over the entire the respective spheres and thus can be easily coupled out through the prism. On the other hand, the light energy associated with the optical modes excited by the embedded light source flows straight around the central axis of spheres, leading to a longer life time.

著者

岡本 徹 東大理
HARAGUCHI Masanobu Department of Optical Science and Technology, Faculty of Engineering, The University of Tokushima
SHINYA Akihiko Department of Optical Science and Technology, Faculty of Engineering, The University of Tokushima
OKAMOTO Toshihiro Department of Optical Science and Technology, Faculty of Engineering, The University of Tokushima
FUKUI Masuo Department of Optical Science and Technology, Faculty of Engineering, The University of Tokushima
福井 萬壽夫 徳島大学工学部
原口 雅宣 徳島大学工学部
Fukui Masuo Department Of Electrical And Electronic Engineering Faculty Of Engineering The University Of Tokushi
Shinya Akihiko Department Of Optical Science And Technology Faculty Of Engineering The University Of Tokushima
Okamoto Toshihiro Department Of Optical Science And Technology Faculty Of Engineering The University Of Tokushima
Haraguchi Masanobu Department Of Electrical And Electronics Engineering Sophia University
Haraguchi Masanobu Department Of Electrical And Electronic Engineering Faculty Of Engineering The University Of Tokushi
原口 雅宣 徳島大学大学院ソシオテクノサイエンス研究部
Okamoto Toshihiro Department Of Chemistry The University Of Tokyo
Okamoto Toshihiro Department of Advanced Electron Devices, The Institute of Scientific and Industrial Research (ISIR), Osaka University, Ibaraki, Osaka 567-0047, Japan

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