...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physics of plasmas >Tunable all-angle negative refraction and photonic band gaps in two-dimensional plasma photonic crystals with square-like Archimedean lattices
【24h】

Tunable all-angle negative refraction and photonic band gaps in two-dimensional plasma photonic crystals with square-like Archimedean lattices

机译：具有正方形阿基米德晶格的二维等离子体光子晶体中的可调全角负折射和光子带隙

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, the tunable all-angle negative refraction and photonic band gaps (PBGs) in two types of two-dimensional (2D) plasma photonic crystals (PPCs) composed of homogeneous plasma and dielectric (GaAs) with square-like Archimedean lattices (ladybug and bathroom lattices) for TM wave are theoretically investigated based on a modified plane wave expansion method. The type-1 structure is dielectric rods immersed in the plasma background, and the complementary structure is named as type-2 PPCs. Theoretical simulations demonstrate that the both types of PPCs with square-like Archimedean lattices have some advantages in obtaining the higher cut-off frequency, the larger PBGs, more number of PBGs, and the relative bandwidths compared to the conventional square lattices as the filling factor or radius of inserted rods is same. The influences of plasma frequency and radius of inserted rod on the properties of PBGs for both types of PPCs also are discussed in detail. The calculated results show that PBGs can be manipulated by the parameters as mentioned above. The possibilities of all-angle negative refraction in such two types of PPCs at low bands also are discussed. Our calculations reveal that the all-angle negative phenomena can be observed in the first two TM bands, and the frequency range of all-angle negative refraction can be tuned by changing plasma frequency. Those properties can be used to design the optical switching and sensor. (C) 2014 AIP Publishing LLC.
机译：本文研究了由均质等离子体和具有方形阿基米德晶格的电介质（GaAs）组成的二维（2D）二维等离子体光子晶体（PPC）中的可调全角负折射和光子带隙（PBG）（基于改进的平面波展开方法，从理论上研究了TM波的瓢虫和浴室格。 1型结构是浸入等离子体背景中的电介质棒，互补结构称为2型PPC。理论仿真表明，两种类型的具有正方形阿基米德点阵的PPC与传统的正方形点阵相比，在获得更高的截止频率，更大的PBG，更多的PBG以及相对带宽方面都具有一些优势。或插入的杆的半径相同。还详细讨论了等离子体频率和插入杆半径对两种PPC的PBG性能的影响。计算结果表明，PBG可以通过上述参数进行操作。还讨论了在低频带下在这两种类型的PPC中进行全角度负折射的可能性。我们的计算表明，可以在前两个TM波段观察到全角度负折射现象，并且可以通过改变等离子体频率来调整全角度负折射的频率范围。这些属性可用于设计光开关和传感器。 （C）2014 AIP Publishing LLC。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号