Fluorescence MDR features of Eu3+ doped sol-gel TiO2 hydrate microspheres

被引：15

作者：

Ikari, H. ^{[1
]}

Okanishi, K. ^{[2
]}

Tomita, M. ^{[2
]}

Ishidate, T. ^{[2
]}

机构：

[1] Shizuoka Univ, Fac Educ, Shizuoka 4228529, Japan

[2] Shizuoka Univ, Dept Phys, Shizuoka 4228529, Japan

来源：

OPTICAL MATERIALS | 2008年 / 30卷 / 08期

关键词：

fluorescence of Eu3+ doped microspheres; sol-gel TiO2 microspheres; WGM; MDR; QED;

D O I：

10.1016/j.optmat.2007.06.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single particle fluorescence of Eu3+ -doped TiO2 hydrate microsphere formed in sol-gel process has been studied, where TiO2 hydrate spheres are characterized by the relatively high refractive index of 1.8. Observed fluorescence spectra display a structure that consists of narrow peaks of varying height superimposed on the familiar broadband emission from europium ions. Such emission peaks result from spherical cavity resonances, and resonance mode positions were assigned from Lorenz-Mie theory calculation. We have also directly measured the lifetime of the MDR peaks of the fluorescence spectra from 8-mu m diameter Eu3+ doped TiO2 hydrate microsphere. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1323 / 1326

页数：4

共 25 条

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[Anonymous], APPL PHYS LETT

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