Sr原子的电场标度能谱  

The constant scaled-energy spectroscopy of Sr in electric field

作　　者：柳晓军[1,2] 曹俊文[1,2] 詹明生[1] 

机构地区：[1]中科院武汉物理与数学研究所波谱与原子分子物理国家重点实验室 [2]中科院安徽光学精密机械研究所激光光谱开放实验室,合肥230031

出　　处：《原子与分子物理学报》2000年第2期371-374,共4页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金资助项目!(批准号 :497740 6 9;197340 0 6 )

摘　　要：利用原子束 -激光束 -电场相互垂直交叉的实验构型 ,通过同步改变激光激发波长和外加电场强度 ,得到了Sr原子在标度能为 - 3.0时的常数标度能谱。通过对实验谱进行傅里叶变换得到的电子回归谱的分析 ,发现在分岔附近回归峰强度增大。均匀化近似闭合轨道理论计算谱与实验回归谱进行了比较 ,发现在低作用量处两者较好符合。By varying laser wavelength and electrical field strength simultaneously and keeping the scaled energy of atoms constant, the constant scaled energy spectra of Sr atom in external electric field at ε=-3.0 were obtained. The increasing of the recurrence strength near bifurcation was observed in the Fourier transform of the experimental spectra. In lower scaled action region, the experimental result is in agreement with the semiclassical closed orbit calculation using uniform approximation.

关 键 词：标度能谱 闭合轨道 锶原子 电场 

分 类 号：O562.3[理学—原子与分子物理]