摘要
应用颗粒膜电介质晶体在低频极限下的准静态折射率和静态折射率(ε_(eff))^(1/2)的关系,分析和计算了光子晶体低频折射率。结果表明:由于低频电磁波诱导的涡流(或极化电流),使非磁性光子晶体显现反磁性共振,这个共振依赖于周期性颗粒的半径a和趋肤深度δ_0之间的关系。即,如果δ_0■a,包含物内部电磁场被屏蔽,使每一种包含物的行为像μ=0的理想反磁性体。对于平行颗粒膜平面(H偏振)的电磁波,光子晶体的反磁性磁导率(μ_(eff)=1-f)总体上是随填充数的增加而线性地减少;相反地,当趋肤层大于半径,则反磁性体共振可以忽略。周期性颗粒的磁化引起静态和准静态折射率的结论,解释了非对易限制的问题。
Using relationship of the quasi-static index of refractive √εeffμeff and the static one √εeff in gramllar film dielectric, the index of refractive of photonic crystal were calculated in the low-frequency limit. The calculation indicates that, due to the eddy current （or the polarized current） induced by the lowfrequency waves, the non-magnetic photonie crystal appears the diamagnetic resonance, which depends on the relationship between the radius of the cylinder a and skin deep δ0. If δ0 〈〈 α, the inside electromagnetic field of the inclusion is concealed. Each inclusion behaves like the ideal diamagnetic with μ = 0. The diamagnetic permeability of （H polarization wave） photon crystal is linearly reduced with the increase of the filling fractions （μeff = 1-f ）. On the contrary, when skin layer is larger than the radius, the diamagnetic resonance can be neglected. The magnetization of the periodicity particle composite media induces distinct values of the quasistatic and static indices of refraction, which explains a paradox with noncomlnuting limits.
出处
《量子电子学报》
CAS
CSCD
北大核心
2010年第6期705-710,共6页
Chinese Journal of Quantum Electronics
基金
重庆市教委科学技术研究项目(KJ081307)
关键词
材料
颗粒膜晶体
光子晶体
低频折射率
介电常数和磁导率
materials
metal granular film
photonic crystal
refractive index of low frequency
dielectric constant and magnetic permeability
作者简介
郑勇林（1957-），重庆人，教授，主要从事近代物理实验，凝聚态表面复合材料研究。E—mail：zhyong303@163．com
