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。
The transmission and the field distributions of 1 D 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.
出处
《江西科学》
2007年第1期1-3,36,共4页
Jiangxi Science
基金
国家自然科学基金(10664002)
关键词
光子晶体
单负材料
异质结构
Photonie crystal, Single - negative material, Heterostrueture
