中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Investigation of mode characteristics for a square cavity with a pedestal by a three-dimensional finite-difference time-domain technique

文献类型:期刊论文

作者Chen, Qin; Huang, Yon-Zhen
刊名Journal of the optical society of america b-optical physics
出版日期2006-07-01
卷号23期号:7页码:1287-1291
ISSN号0740-3224
通讯作者Chen, qin(chenqin@red.semi.ac.cn)
英文摘要Mode characteristics of a strongly confined square cavity suspended in air via a pedestal on the substrate are investigated by a three-dimensional finite-difference time-domain technique. the mode wavelengths and mode quality factors (q factors) are calculated as the functions of the size of the pedestal and the slope angle 0 of the sidewalls of the square slab, respectively for the square slab with side length of 2 mu m, thickness of 0.2 mu m, and refractive index of 3.4, on a square pedestal with refractive index of 3.17, the q factor of the whispering-gallery (wg)-like mode transverse-electric te(3.5)o first increases with the side length b of the square pedestal and then quickly decreases as b > 0.4 mu m, but the q factor of the wg-like mode te(4.6)o drops down quickly as b > 0.2 mu m, owing to their different symmetries. the results indicate that the pedestal can also result in mode selection in the wg-like modes. in addition, the numerical results show that the q factors decrease 50% as the slope angle of the sidewalls varies from 90 degrees to 80 degrees. the mode characteristics of wg-like modes in the square cavity with a rectangular pedestal are also discussed. the results show that the nonsquare pedestal largely degrades the wg-like modes. (c) 2006 optical society of america
WOS关键词MICRODISK LASERS ; RESONATORS
WOS研究方向Optics
WOS类目Optics
语种英语
WOS记录号WOS:000238965600006
出版者OPTICAL SOC AMER
URI标识http://www.irgrid.ac.cn/handle/1471x/2426657
专题半导体研究所
通讯作者Chen, Qin
作者单位Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Chen, Qin,Huang, Yon-Zhen. Investigation of mode characteristics for a square cavity with a pedestal by a three-dimensional finite-difference time-domain technique[J]. Journal of the optical society of america b-optical physics,2006,23(7):1287-1291.
APA Chen, Qin,&Huang, Yon-Zhen.(2006).Investigation of mode characteristics for a square cavity with a pedestal by a three-dimensional finite-difference time-domain technique.Journal of the optical society of america b-optical physics,23(7),1287-1291.
MLA Chen, Qin,et al."Investigation of mode characteristics for a square cavity with a pedestal by a three-dimensional finite-difference time-domain technique".Journal of the optical society of america b-optical physics 23.7(2006):1287-1291.

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来源:半导体研究所

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