標題: | Engineering the bandgap of a two-dimensional photonic crystal with slender dielectric veins |
作者: | Liu, Wen-Long Yang, Tzong-Jer 電子物理學系 Department of Electrophysics |
關鍵字: | photonic band gap;photonic crystals;band structure |
公開日期: | 1-十月-2007 |
摘要: | This study proposes the double-hybrid-rods structure of two-dimensional (2D) photonic crystals of a square lattice. A square dielectric rod connected with slender rectangular dielectric veins on the middle of each side,of dielectric square rod. Some specific modes are found to be sensitive to certain structural parameters, such as the length, the dielectric constant and the shift of the position of the veins, etc., and giving rise to a new complete PBG at lower index bands. These results could be understood by the use of band structure point of view. In particular, by carefully adjusting the structural parameters, the band structure of the photonic crystal can be substantially engineered to achieve large bandgaps. (C) 2007 Elsevier B.V.. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.physleta.2007.05.045 http://hdl.handle.net/11536/10269 |
ISSN: | 0375-9601 |
DOI: | 10.1016/j.physleta.2007.05.045 |
期刊: | PHYSICS LETTERS A |
Volume: | 369 |
Issue: | 5-6 |
起始頁: | 518 |
結束頁: | 523 |
顯示於類別: | 期刊論文 |