双通道离化系统的相干控制  

Coherent control of a two channel ionization system

作　　者：郭红[1] 李高翔[1] 彭金生[1] 

机构地区：[1]华中师范大学物理系,武汉430079

出　　处：《物理学报》2002年第11期2517-2523,共7页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :6 0 0 780 1 6 );国家教育部研究基金 (批准号 :0 1 1 9)资助的课题

摘　　要：研究了中间态为准连续态的双通道离化系统中激光的相对相位对稳态光电子谱的影响 ,给出了系统发生相干俘获的条件及相应的系统状态 ,讨论了俘获率对激光强度。The effects of the relative phase of the four lasers on the steady-state photoelectron spectrum in a two-channel ionization system in which the intermediate states are two sets of quasicontinuaum states are investigated. The condition leading to the atomic coherent population trapping and the coherent population trapping state are given explicitly. The dependence of the amount of population trapped in the atomic bound states on the laser intensities, the detunings and the energy spacings of quasicontinuum states is discussed.

关 键 词：双通道离化系统 准连续态 相干控制 激光 光电子谱 原子 光致离化 

分 类 号：O562.1[理学—原子与分子物理]