Analytical study of whispering gallery mode in 2D microgear cavity

被引：2

作者：

Phan-Huy, K ^{[1
]}

Morand, A ^{[1
]}

Benech, P ^{[1
]}

机构：

[1] CNRS, UJF, INPG, UMR 5130,IMEP, F-38016 Grenoble 1, France

来源：

INTEGRATED OPTICS AND PHOTONIC INTEGRATED CIRCUITS | 2004年 / 5451卷

关键词：

microgear; microdisk resonators; grating; perturbation theory; Coupled Mode Theory; whispering gallery mode; WGM; Dielectric Resonator; DR; Integrated Optics;

D O I：

10.1117/12.549909

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a two dimensional analytical method for studying the effect of gratings on microdisk dielectric resonators. Our model based on a Coupled Mode Theory (CMT) needs the normalization of the Whispering Gallery Mode (WGM). In the past, few normalizations have been proposed, all of them assume the mode to be bound which is not true as WGMs are leaky modes. In this paper, we propose a new normalization with no approximation. Then we apply the CMT in order to compute the resonance wavelength of the perturbated structure. This theory has been checked against 2D FDTD and shows accurate results with very little computation time.

引用

页码：284 / 292

页数：9

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