正负折射率含缺陷1维光子晶体多通道滤波器 |
| |
引用本文: | 熊翠秀,蒋练军,王景艳. 正负折射率含缺陷1维光子晶体多通道滤波器[J]. 激光技术, 2014, 38(4): 475-479. DOI: 10.7510/jgjs.issn.1001-3806.2014.04.009 |
| |
作者姓名: | 熊翠秀 蒋练军 王景艳 |
| |
作者单位: | 1.湖南城市学院 通信与电子工程学院, 益阳 413000; |
| |
基金项目: | 湖南省益阳市科技计划资助项目(2012JZ09) |
| |
摘 要: | 为了分析结构参量对正负折射率材料1维光子晶体缺陷模的影响,利用传输矩阵法计算了基于正负折射率材料含正折射率缺陷1维光子晶体B(AB)m(ACB)n(AB)mB的透射谱,分析了各参量对该结构1维光子晶体缺陷模的影响,并用波动理论定性分析了多通道滤波器形成的原因。结果表明,在各介质层的光学厚度绝对值都为0/4的情况下,每个禁带中都有n个超窄的透射峰,相邻两个透射峰间距比相同结构下正折射率情况的宽;当n=1时,随着C层介质光学厚度以0/4的k倍增加,透射谱中同一禁带内出现了k条透射峰;当n2时,透射谱中同一禁带内出现了nk条透射峰。该研究结果对可调多通道滤波器的设计和研究有一定的参考价值。
|
关 键 词: | 材料 光电子学 缺陷模 传输矩阵法 多通道滤波器 |
收稿时间: | 2013-10-10 |
Multi-channel filter based on 1-D photonic crystals composed of alternate layers of left-handed and right-handed materials with defects |
| |
Abstract: | In order to study the influence of the structural parameters on the defect modes of 1-D photonic crystal containing positive index materials and negative index materials, the transmission spectrum of the 1-D photonic crystal containing positive index materials and negative index materials B(AB)m(ACB)n(AB)mB was calculated by using the optical transmission matrix. The effect of structural parameters on defect modes of 1-D photonic crystals was analyzed. Then, the mechanism of multi-channel filters was analyzed based on the wave optics. The results show that there are n defect modes that have the ultra-narrow multi-channel filtering properties when the optical thickness of each layer medium equals to 0/4. When n=1 and the optical thickness of C layer medium equals to k(0/4), there are k defect modes that have the ultra-narrow multi-channel filtering properties. When n2 and the optical thickness of C layer medium equals to k(0/4), there are nk defect modes that have the ultra-narrow multi-channel filtering properties. The results have certain reference value to the design and research of photonic crystal. |
| |
Keywords: | materials optoelectronics defect mode transfer matrix method multi-channel filter |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《激光技术》浏览原始摘要信息 |
|
点击此处可从《激光技术》下载免费的PDF全文 |