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题名: Investigation of mode characteristics for microdisk resonators by S-matrix and three-dimensional finite-difference time-domain technique
作者: Luo XS;  Huang YZ;  Guo WH;  Chen Q;  Wang MQ;  Yu LJ
发表日期: 2006
摘要: The mode characteristics of a three-dimensional (3D) microdisk with a vertical refractive index distribution of n(2)/3.4/n(2) are investigated by the S-matrix method and 3D finite-difference time-domain (FDTD) technique. For the microdisk with a thickness of 0.2 mu m. and a radius of 1 mu m, the mode wavelengths and quality factors for the HE7,1 mode obtained by 3D FDTD simulation and the S-matrix method are in good agreement as n(2) increases from 1.0 to 2.6. But the Q factor obtained by the 3D FDTD rapidly decreases from 1.12 X 10(4) to 379 as n2 increases from 2.65 to 2.8 owing to the vertical radiation losses, which cannot be predicted by the proposed S-matrix method. The comparisons also show that quality factors obtained from the analytical solution of two-dimensional microdisks under the effective index approximation are five to seven times smaller than those of the 3D FDTD as n(2) = 1 and R = 1 mu m. (c) 2006 Optical Society of America.
KOS主题词: whispering gallery modes;  Lasers;  Holes;  Approximation
刊名: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
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; Guo WH; Chen Q; Wang MQ; Yu LJ .Investigation of mode characteristics for microdisk resonators by S-matrix and three-dimensional finite-difference time-domain technique ,JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS,2006,23(6):1068-1073
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