Effect of the magnetic permeability on photonic band gaps
Effect of the magnetic permeability on photonic band gaps
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DOI：
10.1103/physrevb.56.959
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发表时间：
1997-07
影响因子：
3.7
通讯作者：
M. Sigalas;C. Soukoulis;R. Biswas;K. Ho
中科院分区：
文献类型：
--
作者：
M. Sigalas;C. Soukoulis;R. Biswas;K. Ho
我们研究了一类光子晶体，其中介电常数 \ensuremath{\epsilon} 和磁导率 \ensuremath{\mu} 在晶体内变化。我们发现，当 \ensuremath{\epsilon} 和 \ensuremath{\mu} 在同一材料中都具有最大值时，光子带隙往往会消失。然而，在相反的情况下，\ensuremath{\epsilon} 和 \ensuremath{\mu} 在不同材料中具有最大值，间隙变得更宽，最大间隙超过中间隙频率高达 0.8。我们还讨论了用铁氧体设计这种光子晶体的可能性。
We study a class of photonic crystals in which both the dielectric constant \ensuremath{\epsilon} and the magnetic permeability \ensuremath{\mu} vary within the crystal. We find that in the case where both \ensuremath{\epsilon} and \ensuremath{\mu} have their maximum values in the same material, the photonic band gaps tend to disappear. However, in the opposite case where \ensuremath{\epsilon} and \ensuremath{\mu} have their maximum values in different materials, the gaps become wider with maximum gap over midgap frequency as high as 0.8. We also discuss the possibility of designing such photonic crystals with ferrites.