Calculation of propagation loss in photonic crystal waveguides by fdtd technique and pade approximation
文献类型：期刊论文
| 作者 | Chen, Q; Huang, YZ; Guo, WH; Yu, LJ |
| 刊名 | Optics communications
 |
| 出版日期 | 2005-04-15 |
| 卷号 | 248期号:4-6页码:309-315 |
| 关键词 | Photonic crystal waveguides Propagation loss Fdtd technique |
| ISSN号 | 0030-4018 |
| DOI | 10.1016/j.optcom.2004.12.012 |
| 通讯作者 | Chen, q(chenqin@red.semi.ac.cn) |
| 英文摘要 | The propagation losses in single-line defect waveguides in a two-dimensional (2d) square-lattice photonic crystal (pc) consisted of infinite dielectric rods and a triangular-lattice photonic crystal slab with air holes are studied by finite-difference time-domain (fdtd) technique and a pade approximation. the decaying constant beta of the fundamental guided mode is calculated from the mode frequency, the quality factor (q-factor) and the group velocity v(g) as beta = omega/(2qv(g)). in the 2d square-lattice photonic crystal waveguide (pcw), the decaying rate ranged from 10(3) to 10(-4) cm(-1) can be reliably obtained from 8 x 10(3)-item fdtd output with the fdtd computing time of 0.386 ps. and at most 1 ps is required for the mode with the q-factor of 4 x 10(11) and the decaying rate of 10(-7) cm(-1). in the triangular-lattice photonic crystal slab, a 10(4)-item fdtd output is required to obtain a reliable spectrum with the q-factor of 2.5 x 10(8) and the decaying rate of 0.05 cm(-1). (c) 2004 elsevier b.v. all rights reserved. |
| WOS关键词 | ELECTROMAGNETIC-WAVES ; BENDS ; TRANSMISSION ; DEFECT ; SLABS |
| WOS研究方向 | Optics |
| WOS类目 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000228492900001 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2426491 |
| 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,Guo, WH,et al. Calculation of propagation loss in photonic crystal waveguides by fdtd technique and pade approximation[J]. Optics communications,2005,248(4-6):309-315. |
| APA | Chen, Q,Huang, YZ,Guo, WH,&Yu, LJ.(2005).Calculation of propagation loss in photonic crystal waveguides by fdtd technique and pade approximation.Optics communications,248(4-6),309-315. |
| MLA | Chen, Q,et al."Calculation of propagation loss in photonic crystal waveguides by fdtd technique and pade approximation".Optics communications 248.4-6(2005):309-315. |
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来源：半导体研究所
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