Spontaneous-emission enhancement and population oscillation in photonic crystals via quantum interference
Spontaneous-emission enhancement and population oscillation in photonic crystals via quantum interference
复制标题
DOI：
10.1103/physreva.61.043809
复制
发表时间：
2000-03
影响因子：
2.9
通讯作者：
Yaping Yang;Shi-Yao Zhu
中科院分区：
文献类型：
--
作者：
Yaping Yang;Shi-Yao Zhu
研究了光子晶体中V型三能级原子的自发辐射。两个原子跃迁之间的量子干涉影响了修饰态的构造函数，并导致两个上能级粒子数的有趣行为：反囚禁、周期振荡和无粒子数反转。这些性质强烈地依赖于上能级与禁带的相对位置和原子的初始态，并且不同于光子晶体中的二能级原子。研究了由局域模和传播模组成的辐射场。量子干涉可以增强或降低局域场的能量。
Spontaneous emission from a V-type three-level atom in a photonic crystal is investigated. Quantum interference between the two atomic transitions affects the constructor of dressed states, and leads to an interesting behavior of the populations in the two upper levels: antitrapping, periodic oscillation, and no population inversion. Those properties depend strongly on the relative position of the upper levels from the forbidden gap and the initial state of the atom, and differ from that of a two-level atom in a photonic crystal. The emitted field, which is composed of localized mode(s) and propagating mode(s), is also studied. Quantum interference can enhance or reduce the energy of the localized field.