【摘要】 研究了三维光子晶体中三能级原子自发发射的性质 .由于各向异性色散关系 ,能带带边的态密度没有奇异性 ,局域场可以消失 .在一定条件下弥散场会得到加强 ,并在辐射场中占主导地位 .这些性质将与原子能级和能带带边的相对位置有关 ,且有别于各向同性色散关系的光子晶体中原子自发发射的性质更多还原

【Abstract】 We have studied the properties of spontaneous emission from a three level atom embedded in a photonic crystal. Due to the anisotropic dispersion relation, the density of states lacks singularity. The localized field can disappear and the diffusion field can become intense in some regions.This is different from that in the isotropic dispersion relation case. These properties are directly related to the relative positions of the two upper levels from the band edge.更多还原