Physical Review B
Physical Review B
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发表时间：
2011
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通讯作者：
M. Rosseinsky
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作者：
M. Rosseinsky
研究了一类介电常数和磁导率均随晶体内部变化的光子晶体。我们发现，在相同的材料中，当e和m都有最大值时，光子带隙趋于消失。然而，在相反的情况下，其中e和m在不同的材料中具有其最大值，间隙变得更宽，最大间隙超过中间间隙频率高达0.8。我们还讨论了用铁氧体设计这种光子晶体的可能性。@S0163-1829 ~97！06227-9#简要报告
We study a class of photonic crystals in which both the dielectric constant e d the magnetic permeability m vary within the crystal. We find that in the case where both e andm have their maximum values in the same material, the photonic band gaps tend to disappear. However, in the opposite case where e andm 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. @S0163-1829 ~97!06227-9# BRIEF REPORTS