Whispering gallery modes in micron-sized SrS:Eu octahedrons

被引：16

作者：

Korthout, Katleen ^{[1
]}

Smet, Philippe F. ^{[1
]}

Poelman, Dirk ^{[1
]}

机构：

[1] Univ Ghent, LumiLab, Dept Solid State Sci, B-9000 Ghent, Belgium

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 05期

关键词：

cathodoluminescence; europium; refractive index; scanning electron microscopy; strontium compounds; whispering gallery modes; LASERS;

D O I：

10.1063/1.3078398

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Optical whispering gallery modes were observed in micron-sized SrS:Eu2+ octahedrons. Cathodoluminescence in a scanning electron microscope was used to evaluate the emission characteristics of individual octahedrons with various sizes. The resonance modes superposed on the orange Eu2+ broadband emission were explained by a plane wave model, taking the wavelength dispersion of the refractive index into account. The resonance modes occur in the three equatorial planes in the octahedrons, which were approximated by corner-cut square disks.

引用

页数：3

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