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SEMI OpenIR  > 中国科学院半导体研究所(2009年前)  > 期刊论文

题名: Mode-coupling analysis of three-dimensional microdisk resonators by the finite-difference time-domain technique
作者: Luo XS;  Huang YZ;  Chen Q
发表日期: 2006
摘要: Quality factor enhancement due to mode coupling is observed in a three-dimensional microdisk resonator. The microdisk, which is vertically sandwiched between air and a substrate, with a radius of 1 mu m, a thickness of 0.2 mu m, and a refractive index of 3.4, is considered in a finite-difference time-domain (FDTD) numerical simulation. The mode quality factor of the fundamental mode HE71 decreases with an increase of the refractive index of the substrate, n(sub), from 2.0 to 3.17. However, the mode quality factor of the first-order mode HE72 reaches a peak value at n(sub) = 2.7 because of the mode coupling between the fundamental and the first-order modes. The variation of mode field distributions due to the mode coupling is also observed. This mechanism may be used to realize high-quality-factor modes in microdisks with high-refractive-index substrates. (c) 2006 Optical Society of America.
KOS主题词: whispering gallery modes;  Lasers;  Approximation
刊名: OPTICS LETTERS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Luo XS; Huang YZ; Chen Q .Mode-coupling analysis of three-dimensional microdisk resonators by the finite-difference time-domain technique ,OPTICS LETTERS,2006,31(8):1073-1075
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