Analysis of mode characteristics for equilateral-polygonal resonators with a center hole

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	Analysis of mode characteristics for equilateral-polygonal resonators with a center hole
	Wang, SJ (Wang, Shi-Jiang) ; Yang, YD (Yang, Yue-De) ; Huang, YZ (Huang, Yong-Zhen)
刊名	journal of the optical society of america b-optical physics
	2009
卷号	26 期号:12 页码:2449-2454
关键词	DIRECTIONAL EMISSION
ISSN号	0740-3224
通讯作者	huang, yz, chinese acad sci, inst semicond, state key lab integrated optoelect, pob 912, beijing 100083, peoples r china. 电子邮箱地址: yzhuang@semi.ac.cn
中文摘要	mode characteristics for equilateral triangles, squares, and hexagonal resonators with a center hole are numerically simulated by the finite-different time domain (fdtd) technique. the center hole does not break the symmetry behavior of the original resonators and can result in modification of the mode field patterns and mode q factors. in an equilateral triangle resonator the center hole can suppress the symmetry state of degenerate states with the merit of single mode operation. in a square resonator, the q factor can be enhanced for some modes with a suitable size of the hole. for a hexagonal resonator with a side length of 1 mu m and a refractive index of 3.2, the mode q factors first gradually decrease with the increase of the hole diameter for modes at a wavelength of about 1500 nm, then the modes transform to that of a microdisk with a jump of the mode wavelength as the hole diameter approaches 0.7 mu m. finally, the mode q factors greatly enhance as the hole diameter reaches about 1 mu m. the results indicate that the center hole can greatly modify mode characteristics, especially that of the mode q factor. (c) 2009 optical society of america
学科主题	光电子学
收录类别	SCI
语种	英语
公开日期	2010-03-08
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/7501]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Wang, SJ ,Yang, YD ,Huang, YZ . Analysis of mode characteristics for equilateral-polygonal resonators with a center hole[J]. journal of the optical society of america b-optical physics,2009,26(12):2449-2454.
APA	Wang, SJ ,Yang, YD ,&Huang, YZ .(2009).Analysis of mode characteristics for equilateral-polygonal resonators with a center hole.journal of the optical society of america b-optical physics,26(12),2449-2454.
MLA	Wang, SJ ,et al."Analysis of mode characteristics for equilateral-polygonal resonators with a center hole".journal of the optical society of america b-optical physics 26.12(2009):2449-2454.