WG-like modes selectivity in a square cavity with posts

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	WG-like modes selectivity in a square cavity with posts
	Chen Q ; Huang YZ
刊名	chinese physics letters
	2006
卷号	23 期号:6 页码:1470-1472
关键词	QUALITY FACTOR MICROCAVITIES RESONATORS EMISSION
ISSN号	0256-307x
通讯作者	chen, q, chinese acad sci, inst semicond, state key lab integrated optoelect, pob 912, beijing 100083, peoples r china. e-mail: chenqin@red.semi.ac.cn ; yzhuang@red.semi.ac.cn
中文摘要	we investigate the characteristics of whispering-gallery(wg)-like modes in a square cavity with posts by employing the two-dimentional (2d) finite-difference time-domain (fdtd) technique combined with the effective index method. the results indicate that the posts can result in mode selection in the wg-like modes. the wg-like modes with odd mode numbers are not much sensitive to the sizes of the posts. however, the quality factor (i.e. q-factor) of the wg-like modes with even mode numbers decreases sharply with the increasing size of the posts. the decreasing q-factor is attributed to mode leakage and scattering loss due to the presence of the post. the mode selection increases with the mode spacing of square cavity twice in an optimized strucure.
学科主题	光电子学
收录类别	SCI
语种	英语
公开日期	2010-04-11
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/10612]
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	Chen Q,Huang YZ. WG-like modes selectivity in a square cavity with posts[J]. chinese physics letters,2006,23(6):1470-1472.
APA	Chen Q,&Huang YZ.(2006).WG-like modes selectivity in a square cavity with posts.chinese physics letters,23(6),1470-1472.
MLA	Chen Q,et al."WG-like modes selectivity in a square cavity with posts".chinese physics letters 23.6(2006):1470-1472.