论文部分内容阅读
讨论了在双光子驱动场作用下，三能级原子在光子晶体中的自发发射问题．由于量子干涉和光的局域化作用，两个上能级中的占据数将具有周期振荡或准周期振荡的性质，这不仅依赖于两个上能级与禁带的相对位置，同时也依赖于原子的初始状态，而且还与驱动场的强度、驱动场的入射位相有关．这些性质既与真空中带有驱动场的原子的自发发射性质不同，也有别于无驱动场作用下光子晶体中三能级原子的自发发射性质．
The spontaneous emission of three-level atoms in photonic crystals under the action of two-photon driving field is discussed. Due to the quantum interference and the localization of light, the occupancy numbers in the two upper levels will have the property of either periodic oscillations or quasi-periodic oscillations, depending not only on the relative positions of the two upper energy levels and the forbidden band but also on The initial state of the atom, but also with the driving field intensity, driving field incident phase related. These properties are different from the spontaneous emission properties of atoms with driving field in vacuum and the spontaneous emission properties of three-level atoms in photonic crystals without driving field.