采用数值方法研究静电场和不同的激光脉冲对氢原子的电离率和高次谐波的影响.结果表明脉冲形状和电离率之间有着确定的关系,电离率反过来又影响了谐波谱的性质;另外,随着所加的静电场强度的增大,电离率呈上升的趋势,而谐波谱出现一个双平台的结构. 标签高次谐波电离率脉冲HighorderharmonicgenerationIonizationLaserpulse Abstract Westudytheeffectsofpulseshapeandstaticelectricfieldonionizationandhighorderharmonicgeneration(HHG)ofaonedimensionalmodelhydrogenatom.Theseriesofresultsindicatethatthereisacertainrelationshipbetweentheionizationprobabilityandthepulseshape,whichinturninfluencesthecharacterofHHG.Theionizationprobabilityincreasesastheadditionalfieldintensityisincreased.TheHHGspectrumexhibitsadoubleplateastructurewhentheintensityoftheelectricfieldissuitable