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Resonant tunneling properties of photonic crystals consisting of single-negative materials
  • ISSN号:1001-6538
  • 期刊名称:科学通报(英文版)
  • 时间:0
  • 页码:529-533
  • 语言:中文
  • 分类:TM21[电气工程—电工理论与新技术;一般工业技术—材料科学与工程]
  • 作者机构:[1]Department of Physics, Nanchang University, Nanchang 330031, China
  • 相关基金:Supported by the National Natural Science Foundation of China (Grant Nos. 60268001 and 10664002) and Science Foundation of Nanchang University
  • 相关项目:光子晶体微腔中自发辐射的非马尔科夫动力学过程研究
中文摘要:

我们学习了用转移矩阵方法由单人赛否定的介电常数和单人赛否定的渗透媒介组成的一个维的 photonic 晶体的反响的通道性质。结果证明那在那里存在在这结构的一双反响的通道模式。通道模式的对的分离能被改变二单人赛否定的层的厚度或缺点层的厚度的比率调节。反响的通道模式的电场紧张随二单人赛否定的层的厚度的比率的增加很快增加。当二单人赛否定的层的厚度的比率增加 0.4 时,反响的通道模式的领域紧张的山峰值被一个数量级提高。这个性质将在非线性光学的领域里广泛地被使用。随二单人赛否定的层的厚度的比率的增加,通道模式的电场变得更局部性,并且在通道模式的半最大值的完整的宽度变得更狭窄。而且,通道模式的对对事件角度和厚度变化感觉迟钝。这些性质将与高质量的因素被用于悦耳的全向的双隧道过滤器的设计。

英文摘要:

We studied the resonant tunneling properties of one-dimensional photonic crystals consisting of single-negative permittivity and single-negative permeability media using transfer matrix methods. The results show that there exists a pair of resonant tunneling modes in this structure. The separation of the pair of tunneling modes can be tuned by varying the ratio of thicknesses of the two single-negative layers or the thickness of the defect layer. The electric field intensity of the resonant tunneling modes increases rapidly with the increase of the ratio of thicknesses of the two single-negative layers. The peak value of the field intensity of the resonant tunneling modes is enhanced by one order of magnitude when the ratio of thicknesses of the two single-negative layers increases by 0.4. This property will be applied widely in the field of nonlinearity optics. With the increase of the ratio of thicknesses of the two single-negative layers, the electric field of the tunneling modes becomes more localized, and the full width at half maximum of the tunneling modes becomes narrower. Besides, the pair of tunneling modes is insensitive to incident angle and thickness fluctuation. These properties will be used for the design of tunable omnidirectional double-channel filter with high quality factor.

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