在非旋波近似下研究嵌入光子晶体中的三能级原子的自发辐射,其中光子晶体的能带带边所处位置相对原子两个上能级不对称.在某些特定参数下,虚光子与实光子发生强烈的量子干涉.原子的辐射场出现新的局域模,原子被部分束缚在激发态.

The spontaneous emission is studied with non rotating wave approximation in a three level atom embedded in a photonic band gap structure (PBGS). And the edge of the gap is not located at the center of the two upper levels. Intense quantum interference occurs between the virtual and real photons with a set of suitable parameters. A new localized field is found in the spontaneous emission field, while the atom is partly trapped in the upper levels.