Analytical single-mode model for subwavelength metallic Bragg waveguides

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	Analytical single-mode model for subwavelength metallic Bragg waveguides
	Zhong, XL ; Li, ZY ; Wang, C ; Zhou, YS
刊名	JOURNAL OF APPLIED PHYSICS
	2011
卷号	109 期号:9
关键词	PLASMON REFLECTORS FILTER
ISSN号	0021-8979
通讯作者	Li, ZY: Chinese Acad Sci, Inst Phys, Lab Opt Phys, POB 603, Beijing 100190, Peoples R China.
中文摘要	We develop a theoretical formalism that incorporates the method of moment with the analytical eigenmode expansion to investigate the dispersion relation of light transport in subwavelength metallic Bragg waveguide (WG) with each unit cell composed of a wide and a narrow segment of metallic gap. The approach fully accounts for the light scattering at the interface between two consecutive discontinuous segments. A simple single-mode analytical model is derived for both the fundamental even and odd guided modes. The model shows that the band structure of light transport in the structure resembles that of an ordinary dielectric one-dimensional photonic crystal with appropriate physical and geometric parameters that can be analytically derived. Numerical simulations by the finite-difference time-domain method on the optical transmission spectra and band diagrams for these metallic Bragg WGs agree well with the analytical results of band diagrams. In addition, the analytical model can handle structures working in both the microwave and infrared regimes. This indicates that the simple analytical model is effective and efficient in handling various light transport problems for subwavelength metallic Bragg WGs. (C) 2011 American Institute of Physics. [doi:10.1063/1.3582147]
收录类别	SCI
资助信息	973 Program of China [2011CB301801]; National Natural Science Foundation of China [10874124, 60736041]; Natural Science Foundation of Beijing [1102012]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33725]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhong, XL,Li, ZY,Wang, C,et al. Analytical single-mode model for subwavelength metallic Bragg waveguides[J]. JOURNAL OF APPLIED PHYSICS,2011,109(9).
APA	Zhong, XL,Li, ZY,Wang, C,&Zhou, YS.(2011).Analytical single-mode model for subwavelength metallic Bragg waveguides.JOURNAL OF APPLIED PHYSICS,109(9).
MLA	Zhong, XL,et al."Analytical single-mode model for subwavelength metallic Bragg waveguides".JOURNAL OF APPLIED PHYSICS 109.9(2011).