Flat photonic bands in two-dimensional photonic crystals with kagome lattices
Flat photonic bands in two-dimensional photonic crystals with kagome lattices
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DOI：
10.1088/0953-8984/16/34/028
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发表时间：
2004-08
期刊：
影响因子：
--
通讯作者：
H. Takeda;T. Takashima;K. Yoshino
中科院分区：
文献类型：
--
作者：
H. Takeda;T. Takashima;K. Yoshino
我们从理论上证明了具有可果美晶格的二维光子晶体中的光子带是平坦的。在这种由圆形棒组成的光子晶体中，电磁波局限于棒上形成平坦的光子带。平坦的光子带对于全向激射和增强材料间的全向电磁相互作用具有重要意义。讨论了光子晶体的平带与介质的介电常数和半径的关系。
We theoretically demonstrate flat photonic bands in two-dimensional photonic crystals with kagome lattices. In such photonic crystals composed of circular rods, electromagnetic waves localizing at the rods form flat photonic bands. The flat photonic bands are important for the omnidirectional lasing and the enhancement of the omnidirectional electromagnetic interaction of materials. Dependences of flat photonic bands on the dielectric constant and radii of rods are discussed.