首页 > 论文 > 激光与光电子学进展 > 52卷 > 1期(pp:11407--1)

一阶空间啁啾高斯脉冲光束的聚焦特性研究

Focusing Characteristics of Gaussian Pulsed Beams with First-Order Spatial Chirp

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

空间啁啾效应是超短脉冲中的一种常见的时空耦合效应。对一阶空间啁啾高斯脉冲光束的聚焦特性进行了较为系统的研究,推导出了经透镜聚焦后光束的解析表达式。在不考虑透镜色差的理想情况下,解析推导出了聚焦后的脉宽、束宽以及振幅耦合系数的解析表达式。数值模拟了聚焦前后的光强分布,分析了考虑透镜色差时光束的脉宽、束宽以及振幅耦合系数随透镜后传输距离的变化,并与理想情况下的结果进行了对比。研究结果表明,不考虑透镜色差时,一阶空间啁啾高斯脉冲光束经过透镜聚焦后仍然是一阶空间啁啾高斯脉冲光束;透镜色差对一阶空间啁啾高斯脉冲光束聚焦后的束宽和振幅耦合程度没有影响,但会导致聚焦后光束的脉宽加宽。

Abstract

Spatial chirp is a common phenomena in ultrashort pulses. The focusing characteristics of Gaussian pulsed beams with the first-order spatial chirp (FSC) are investigated, and the analytical expression for the FSC beam on the output plane is derived. The analytical expressions for the pulse width, beam width and amplitude coupling coefficient of the FSC beam after focusing without chromatic aberration are derived. The intensity distribution before and after focusing is simulated. The pulse width, beam width and amplitude coupling coefficient of the FSC beam after focusing are analyzed numerically with the variation of propagation distance when the chromatic aberration is considered, which are compared with the corresponding results when the chromatic aberration is not considered. It is found that the FSC beam keeps the form after focusing without chromatic aberration; the chromatic aberration has no effect on beam width and amplitude coupling coefficient,but broadens the pulse width of FSC beam.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:O436

DOI:10.3788/lop52.011407

所属栏目:激光器与激光光学

责任编辑:张雁

基金项目:国家自然科学基金(11347117)、三峡大学优秀人才科研启动基金(KJ2011B066)

收稿日期:2014-06-26

修改稿日期:2014-08-13

网络出版日期:--

作者单位    点击查看

曾曙光:三峡大学理学院, 湖北宜昌443002
刘雁:三峡大学理学院, 湖北宜昌443002

联系人作者:曾曙光(zengshuguang19@sohu.com)

备注:曾曙光(1984—),男,博士,讲师,主要从事超短激光脉冲相关技术方面的研究。

【1】X Gu, S Akturk, R Trebino. Spatial chirp in ultrafast optics [J]. Opt Commun, 2004, 242(4): 599-604.

【2】S Akturk, M Kimmel, P O′ Shea, et al.. Measuring spatial chirp in ultrashort pulses using single- shot frequencyresolved optical gating [J]. Opt Express, 2003, 11(1): 68-78.

【3】S Akturk, X Gu, P Gabolde, et al.. The general theory of first-order spatio-temporal distortions of Gaussian pulses and beams [J]. Opt Express, 2005, 13(21): 8642-8661.

【4】F Frei, A Galler, T Feurer. Space-time coupling in femtosecond pulse shaping and its effects on coherent control [J]. J Chem Phys, 2009, 130(3): 034302.

【5】M E Durst, G Zhu, C Xu. Simultaneous spatial and temporal focusing in nonlinear microscopy [J]. Opt Commun, 2008,281(7): 1796-1805.

【6】D N Vitek, E Block, Y Bellouard, et al.. Spatio-temporally focused femtosecond laser pulses for nonreciprocal writing in optically transparent materials [J]. Opt Express, 2010, 18(24): 24673-24678.

【7】F He, H Xu, Y Cheng, et al.. Fabrication of microfluidic channels with a circular cross section using spatiotemporally focused femtosecond laser pulses [J]. Opt Lett, 2010, 35(7): 1106-1108.

【8】Zeng Shuguang, Song Laizhong, Wang Fei, et al.. Proagation characteristics of Gaussian pulsed beams with first-order spatio-temporal couplines [J]. Acta Optica Sinica, 2013, 33(10): 1014002.
曾曙光, 宋来忠, 王飞, 等. 一阶时空耦合高斯脉冲光束的传输特性研究[J]. 光学学报, 2013, 33(10): 1014002.

【9】C G Durfee, M Greco, E Block, et al.. Intuitive analysis of space-time focusing with double-ABCD calculation [J]. Opt Express, 2012, 20(13): 14244-14259.

【10】M Coughlan, M Plewicki, R Levis. Spatio- temporal and- spectral coupling of shaped laser pulses in a focusing geometry [J]. Opt Express, 2010, 18(23): 23973-23986.

【11】G Zhu, J van Howe, M Durst, et al.. Simultaneous spatial and temporal focusing of femtosecond pulses [J]. Opt Express, 2005, 13(6): 2153.

【12】M Kempe, W Rudolph. Femtosecond pulses in the focal region of lenses [J]. Physical Review A, 1993, 48(6): 4721.

【13】J C Diels, W Rudolph. Ultrashort Laser Pulse Phenomena [M]. London: Academic Press, 2006. 135-136.

【14】M Kempe, U Stamm, B Wilhelmi, et al.. Spatial and temporal transformation of femtosecond laser pulses by lenses and lens systems [J]. J Opt Soc Am B, 1992, 9(7): 1158-1165.

【15】Zeng Shu-Guang, Dan You- Quan, Zhang Bin, et al.. Describing spatiotemporal couplings in ultrashort pulses using coupling coefficients [J]. Chinese Physics B, 2011, 20(11): 114213.

引用该论文

Zeng Shuguang,Liu Yan. Focusing Characteristics of Gaussian Pulsed Beams with First-Order Spatial Chirp[J]. Laser & Optoelectronics Progress, 2015, 52(1): 011407

曾曙光,刘雁. 一阶空间啁啾高斯脉冲光束的聚焦特性研究[J]. 激光与光电子学进展, 2015, 52(1): 011407

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF