| 一维异质结构光子晶体全方位窄带滤波 |
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| 引用本文： | 李鸿梅,刘念华. 一维异质结构光子晶体全方位窄带滤波[J]. 江西科学, 2007, 25(1): 1-3,36 |
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| 作者姓名： | 李鸿梅 刘念华 |
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| 作者单位： | 南昌大学理学院,江西,南昌,330047;南昌大学理学院,江西,南昌,330047 |
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| 基金项目： | 国家自然科学基金(10664002) |
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| 摘 要： | 研究了由两类单负材料组成的一维异质结构光子晶体异质结构的透射谱及场分布。选择合适的参数,使得一维异质结构光子晶体的平均磁导率和平均介电常数均为零,发现其禁带中出现了一个很窄的共振传播模式,位相延迟为零,该通带内电、磁场被强烈的局域,并且只要满足零平均磁导率和零平均介电常数的条件,这种传播模式不会随着入射角度的改变而移动,可以用来设计全方向单通道滤波器。
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| 关 键 词： | 光子晶体 单负材料 异质结构 |
| 文章编号： | 1001-3679（2007）01-0001-04 |
| 修稿时间： | 2006-11-092006-12-28 |
Omnidirectional Transmission and Optical Enhancement of One-dimensional Photonic Crystals with Single-negative Materials |
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| LI Hong-mei,LIU Nian-hua. Omnidirectional Transmission and Optical Enhancement of One-dimensional Photonic Crystals with Single-negative Materials[J]. Jiangxi Science, 2007, 25(1): 1-3,36 |
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| Authors: | LI Hong-mei LIU Nian-hua |
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| Affiliation: | Department of Physics ,Nanchang University ,Jiangxi Nanchang 330047 PRC |
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| Abstract: | The transmission and the field distributions of 1D photonic heterostructures with single negative material was investigated by the transfermatrix theory.With suit parameters,the average permittivity and the average permeability is zero.A complete transmission peak exist in theforbidden gap.The electromagnetic field has enhanced strongly at the interface.And the peak doesn't move when the incident angle changes.The reason is the transfermatrix is an unit matrix on the zero average permittivity and the zero average permeability conditions. |
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| Keywords: | Photonic crystal Single-negative material Heterostructure |
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