检索结果-南通市图书馆

Angular momentum distribution in strong-field frustrated tunneling ionization

Chinese Optics Letters 2018年第4期16卷 6-10页

作者： Jintai Liang Ruozhou Zhang Xiaomeng Ma Yueming Zhou and Peixiang Lu School of Physics Huazhong University of Science and Technology Wuhan 430074 China Laboratory of Optical Information Technology Wuhan Institute of Technology Wuhan 430205 China

Using the classical-trajectory Monte Carlo model, we have theoretically studied the angular momentum distribution of frustrated tunneling ionization（FTI） of atoms in strong laser fields. Our results show that the angular momentum distribution of the FTI events exhibits a double-hump structure. With this classical model, we back traced the tunneling coordinates, i.e., the tunneling time and initial transverse momentum at tunneling ionization. It is shown that for the events tunneling ionized at the rising edge of the electric field,the final angular momentum exhibits a strong dependence on the initial transverse momentum at *** for the events ionized at the falling edge, there is a relatively harder recollision between the returning electron and the parent ion, leading to the angular momentum losing the correlation with the initial transverse momentum. Our study suggests that the angular momentum of the FTI events could be manipulated by controlling the initial coordinates of the tunneling ionization.

关键词： 020.2649 Strong field laser physics 020.4180 Multiphoton processes 320.7110 Ultrafast nonlinear optics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Cooling-induced increase of methane cluster size investigated under a Coulomb explosion scheme

引用

Chinese Optics Letters 2013年第14期11卷 10-13页

作者：李松卢海洋张辉 Kazuhisa Nakajima 刘建胜倪国权 State Key Laboratory of High Filed Laser Physics Shanghai Institute of Optics and Fine Mechanics the Chinese Academy of Sciences Shanghai 201800 China High Energy Accelerator Research Organization (KEK) Ibaraki 305-0801 Japan

In this letter, we discuss the increase in the average cluster size by lowering the stagnation temperature of the methane （CH4） gas. The Coulomb explosion experiments are conducted to estimate the cluster size and the size distribution. The average CH4 cluster sizes Nay of 6 230 and 6 580 are acquired with the source conditions of 30 bars at 240 K and 60 bars at 296 K, respectively. Empirical estimation suggests a five-fold increase in the average size of the CH4 clusters at 240 K compared with that at room temperature under a backing pressure of 30 bars. A strong nonlinear Hagena parameter relation （Г^＊∝ T0^-3.3） for the CH4 clusters is revealed. The results may be favorable for the production of large-sized clusters by using gases at low temperature and high back pressures.

关键词： 020.2649 Strong field laser physics 350.5400 Plasmas

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Full-aperture backscatter diagnostics and applications at the Texas Petawatt Laser facility

引用

Chinese Optics Letters 2014年第A2期12卷 152-156页

作者： C. Wang C. Wagner G. Dyer E. Gaul N. Kandadai N. Riley D. Kuk E. McCary A. Meadows I. Pomerantz M. Spinks T. Borger A. Bernstein M. Donovan M. Martinez T. Ditmire Bjorn M. Hegelich Center for High Energy Density Science University of Texas Austin Texas 78712

In this paper, we present the development and application of a full-aperture baekscatter diagnostics system at the Texas Petawatt Laser （TPW） facility. The diagnostic system includes three independent diagnostic stations. With this system, we obtained TPW on-shot focus properties, and high-harmonic spectral emission flOln solid foils （e.g., Cu and Al） and their Si substrate in an experiment to study laser hole boring, which show the hole-boring mechanism at relativistic intensities. The measured on-target full-power focal spots from ultrathin film targets help determine the optimum target thickness at certain laser contrast parameters for particle acceleration and neutron generation experiment, which is also a relative measurement of shot-to- shot intensity fluctuations.

关键词： 320.7090 Ultrafast lasers 020.2649 Strong field laser physics 300.6360 Spectroscopy, laser 350.5400 Plasmas

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：