Optical Switching Phenomena of Kerr Nonlinear Microsphere Due to Near-Field Coupling : Numerical Analysis(Special Issue on Near-Field Optics and Its Applications)

元データ 2002-12-01 社団法人電子情報通信学会

概要

We calculated linear and nonlinear responses of a Kerr nonlinear microsphere sandwiched by two prisms using the excitation of whispering gallery modes due to near-field coupling. As numerical calculations, the finite-difference time-domain method that takes into account the Kerr nonlinear effect was used. We dealt with two types of spheres, i.e., the Kerr-material sphere and the dielectric sphere coated by the Kerr material. It was found that the optical switching phenomena are induced in such spheres. The switching results from the fact that the variations of the refractive index of the nonlinear spheres affect the excitation condition of the whispering gallery modes.

著者

岡本 徹 東大理
福井 萬壽夫 徳島大学工学部
原口 雅宣 徳島大学工学部
Haraguchi Masanobu Department Of Electrical And Electronics Engineering Sophia University
HARAGUCHI Masanobu Dept. of Optical Science and Technology, University of Tokushima
OKAMOTO Toshihiro Dept. of Optical Science and Technology, University of Tokushima
FUKUI Masuo Dept. of Optical Science and Technology, University of Tokushima
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 T Dept. Obst. Gynec., Gamagohri City Hosp.
Haraguchi M Dept. of Optical Science and Technology, University of Tokushima
Fukui M Dept. of Optical Science and Technology, University of Tokushima

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