title: Numerical analysis on the feasibility of a multi-layered dielectric sphere as a three-dimensional photonic crystal.
abstract: The radiative decay rate of a dipole emitter inside the core of a multi-layered dielectric sphere is theoretically investigated. It is shown that, when the thickness of each layer coincides with a quarter wavelength, the multi-layered sphere has a great potential to work as a three-dimensional photonic crystal with a high quality factor and a small mode volume. From the analysis of the dipole position dependence of a radiative decay rate, we show that a smaller core radius, a quarter wavelength at the smallest, is more suitable for real applications. The investigation on the tolerance for thickness nonuniformity reveals that the thickness variation of 10% is tolerable.
authors.affiliation: Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan. imakita@eedept.kobe-u.ac.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Imakita
authors.forename: Hiroki
authors.initials: H
authors.lastname: Shibata
authors.forename: Minoru
authors.initials: M
authors.lastname: Fujii
authors.forename: Shinji
authors.initials: S
authors.lastname: Hayashi
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004553:Electric Conductivity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005240:Feasibility Studies; D008420:Manufactured Materials / Q000032:analysis*; D008956:Models, Chemical; D017785:Photons; D020349:Surface Plasmon Resonance / Q000295:instrumentation*