双色激光场中激光强度和脉宽对线性多原子分子离子电离的影响

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 强场激光物理国家重点实验室

	双色激光场中激光强度和脉宽对线性多原子分子离子电离的影响; Influence of intensity and pulse width on ionization of linear multi-atom molecular ion in two-color laser fields
	石春花 ; 邱锡钧 ; 李儒新
刊名	强激光与粒子束
	2005
卷号	17 期号:5 页码:693
关键词	双色激光场 Two-color laser fields 激光强度 Laser intensity 脉冲时间 Pulse time 电离 Ionization 含时Schr（oe）dinger方程 Time-dependent Schr dingeroequation
ISSN号	1001-4322
其他题名	Influence of intensity and pulse width on ionization of linear multi-atom molecular ion in two-color laser fields
中文摘要	利用强激光场电离和离解分子来研究分子激发态的波包结构是强场物理的重要研究方向。利用短时指数传播子对称分割法和快速傅里叶变换技术。数值求解了一维含时Schr（oe）dinger方程，探讨了双色激光场中激光的基波和谐波强度之间的不同配比以及脉宽对线性多原子分子离子电离的影响。理论计算结果表明：基波和谐波的相对相位为π时，尽管随着激光的基波和谐波强度之间配比的变化，电离几率随原子间距变化的趋势基本保持不变，但在一定的激光基波强度下(1．2×10^13～1．2×10^15W／cm^2)，激光基波强度的变化可以明显; The studies of the wavelet structures of the molecular excitations with the high intense laser are very active in the strong laser field physics. The one-dimensional time-dependent Schrdinger equation was numerically solved with the symmetric splitting of the short-time exponential propagator and the fast Fourier transformation, and influence of intensity and pulse with on ionization of linear multi-ation molecular ion in two-color laser fields was researched. The theory results show that the dependence of ionization probability on the atomic distance can be altered obviously with the fundamental wave-field-intensity of 1.2×10~13 ~1.2×10~15 W/cm2, but unchanged with respect to different intensity ratios. In addition, the continuous interaction of laser pulse can enhance molecular ionization, the ionization, however, comes up to saturates when the interaction time reaches 75 fs with given parameters. These results can be explained by the static-electric-field ionization model.
学科主题	激光技术;激光物理与基本理论
分类号	O437
收录类别	ei
语种	中文
公开日期	2009-09-18 ; 2010-10-12
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/412]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
推荐引用方式 GB/T 7714	石春花,邱锡钧,李儒新. 双色激光场中激光强度和脉宽对线性多原子分子离子电离的影响, Influence of intensity and pulse width on ionization of linear multi-atom molecular ion in two-color laser fields[J]. 强激光与粒子束,2005,17(5):693, 699.
APA	石春花,邱锡钧,&李儒新.(2005).双色激光场中激光强度和脉宽对线性多原子分子离子电离的影响.强激光与粒子束,17(5),693.
MLA	石春花,et al."双色激光场中激光强度和脉宽对线性多原子分子离子电离的影响".强激光与粒子束 17.5(2005):693.