摘要
采用半经典理论中布洛赫（Ｂｌｏｃｈ）方程方法研究相干脉冲与Λ－型量子拍频三能级系统相互作用产生的自由感应衰减现象，讨论系统的弛豫对自由感应衰减信号场的影响。
optical free-induction decay is studied semiclassically in the Λ-type three-level system with two lower levels being almost degenerate in Bloch form. It is discussed that the systematic relaxation has effect on the signal field of the free-induction decay. The decay behavior has three contributions: a homogeneous part with transverse relaxation time and two inhomogeneous parts with different time constants that reflect the velocity bandwidth excited.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
1998年第3期341-346,共6页
Journal of Atomic and Molecular Physics
