| 单周期以上双曲正割脉冲光束的传输性质 |
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| 引用本文： | 杨振峰,赵立志,杨振军,李潇潇,张书敏.单周期以上双曲正割脉冲光束的传输性质[J].河北师范大学学报(自然科学版),2007,31(1):60-63. |
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| 作者姓名： | 杨振峰 赵立志 杨振军 李潇潇 张书敏 |
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| 作者单位： | 1. 河北科技大学,经济管理学院,河北,石家庄,050018
2. 河北师范大学,物理科学与信息工程学院,河北,石家庄,050016 |
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| 基金项目： | 河北省自然科学基金
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河北省科学技术研究与发展计划
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河北科技大学校科研和教改项目 |
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| 摘 要： | 从傍轴波动方程出发,给出了超短双曲正割脉冲光束的解析解.此解可以描述单周期以上的超短双曲正割脉冲光束.此脉冲光束解的每个频率分量都是高斯函数与双曲正割函数乘积的形式,具有相同的衍射距离参数.对这种超短脉冲光束在自由空间中的传输性质进行了研究.
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| 关 键 词： | 脉冲光束 双曲正割 缓变包络近似 脉冲传输 |
| 文章编号： | 1000-5854(2007)01-0060-04 |
| 修稿时间： | 2006-03-02 |
Propagation of the Few-cycle Hyperbolic Secant Pulsed Beams |
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| YANG Zhen-feng,ZHAO Li-zhi,YANG Zhen-jun,LI Xiao-xiao,ZHANG Shu-min.Propagation of the Few-cycle Hyperbolic Secant Pulsed Beams[J].Journal of Hebei Normal University,2007,31(1):60-63. |
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| Authors: | YANG Zhen-feng ZHAO Li-zhi YANG Zhen-jun LI Xiao-xiao ZHANG Shu-min |
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| Institution: | 1. School of Economics and Management, Hebei University of Science and Technology, Hebei Shijiazhuang 050018, China; 2. College of Physics Science and Information Engineering,Hebei Normal University,Hebei Shijiazhuang 050016,China |
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| Abstract: | By starting from the paraxial wave equation,the analytical expression of the ultrashort Hyperbolic Secant pulsed beam are deduced.This solution can be used to describe the ultrashort Hyperbolic Secant pulsed beam whose pulse duration is longer than one optical oscillation period.These pulsed beams with a certain frequency have the product form of the monochromatic Gaussian beam times the complex Hyperbolic Secant function.The propagation properties of the ultrashort Hyperbolic Secant pulsed beam have been studied detailedly in free space. |
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| Keywords: | pulsed beam hyperbolic secant slowly-varying envelope approximation pulse propagation |
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