近简并V-型三能级系统的自由感应衰减现象(英文)  

Optical free induction decay in an almost degenerate V-Type Three-Level system

作　　者：黄婷[1] 张春发[1] 廖艳林[1] 曹卓良[1] 

机构地区：[1]安徽大学物理系,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2002年第1期46-50,共5页Journal of Anhui University(Natural Science Edition)

基　　金：Project(99022019)supportedbyKeyFoundationofAnhuiProvince ,projectbytheNaturalSci enceFoundationofAnhuiProvinceandproject(98JL010 )bytheEducationCommissionFoundationofAnhuiProvince,China

摘　　要：本文采用半经典中布洛赫 (Bloch)方程方法研究近简并V -型三能级系统的自由感应衰减现象 。A optical free induction decay is studied semiclassically in the V-type three-level system with two upper 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.

关 键 词：自感应衰减关系 布洛赫方程 V-型三能级系统 自由感应衰减现象 原子驰豫 半经典方法 

分 类 号：O562[理学—原子与分子物理]