摘要
研究了在两个同频率驱动场作用下四能级原子的自发辐射性质。讨论了当两个驱动场间的位相差取不同值时,原子各能级布居数随时间的演化情况。发现对于不同相位差,可以使原子布居数的衰减速率加快或减慢,甚至完全抑制。
The spontaneous vadoation investigated, and the evolution progress of a four-level atom driven by two of the atomic populations are studied when two driven fiewls has different phase shift. It is shown that, as th spontaneous radiation can be enhanced, lasers of equal frequencies is according to the time vaviant, e relative phase changes, the suppressed, or even totally cancelled.
出处
《量子光学学报》
CSCD
北大核心
2009年第4期304-308,共5页
Journal of Quantum Optics
基金
国家自然科学基金(批准号:10664002)
教育部长江学者与创新团队发展计划(项目编号:IRT0730)
关键词
量子干涉
四能级原子
自发辐射
quantum interference
four-level atom
spontaneous emission
