Analysis of mode characteristics for deformed square resonators by fdtd technique
文献类型：期刊论文
| 作者 | Chen, Q; Huang, YZ; Yu, LJ |
| 刊名 | Ieee journal of quantum electronics
 |
| 出版日期 | 2006 |
| 卷号 | 42期号:1-2页码:59-63 |
| 关键词 | Finite-difference time-domain (fdtd) methods Optical resonators Modeling |
| ISSN号 | 0018-9197 |
| DOI | 10.1109/jqe.2005.859912 |
| 通讯作者 | Chen, q(chenqin@red.semi.ac.cn) |
| 英文摘要 | The mode frequencies and quality factors (q-factors) in two-dimensional (2-d) deformed square resonators are analyzed by finite-difference time-domain (fdtd) technique. the results show that the deformed square cavities with circular and cut corners have larger q-factors than the perfect ones at certain conditions. for a square cavity with side length of 2 mu m and refractive index of 3.2, the mode q-factor can increase 13 times as the perfect corners are replaced by a quarter of circle with radius of 0.3 pm. furthermore the blue shift with the increasing deformations is found as a result of the reduction in effective resonator area. in square cavities with periodic roughness at sidewalls which maintains the symmetry of the square, the q-factors of the whisperin gallery (wg)-like modes are still one order of magnitude larger that those of non-wg-like modes. however, the q-tactors of these two types of modes are of the same order in the square cavity with random roughness. we also find that the rectangular and rhombic deformation largely reduce the q-factors with the increasing offset and cause the splitting of the doubly degenerate modes due to the breaking of certain symmetry properties. |
| WOS关键词 | MICROCAVITIES |
| WOS研究方向 | Engineering ; Optics ; Physics |
| WOS类目 | Engineering, Electrical & Electronic ; Optics ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000235294000008 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2426611 |
| 专题 | 半导体研究所 |
| 通讯作者 | Chen, Q |
| 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, Q,Huang, YZ,Yu, LJ. Analysis of mode characteristics for deformed square resonators by fdtd technique[J]. Ieee journal of quantum electronics,2006,42(1-2):59-63. |
| APA | Chen, Q,Huang, YZ,&Yu, LJ.(2006).Analysis of mode characteristics for deformed square resonators by fdtd technique.Ieee journal of quantum electronics,42(1-2),59-63. |
| MLA | Chen, Q,et al."Analysis of mode characteristics for deformed square resonators by fdtd technique".Ieee journal of quantum electronics 42.1-2(2006):59-63. |
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来源：半导体研究所
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