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中国科学院大学学报 ›› 2017, Vol. 34 ›› Issue (1): 119-123.DOI: 10.7523/j.issn.2095-6134.2017.01.016

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空气中相位板调制下的飞秒激光成丝过程

张肖玲, 奚婷婷   

  1. 中国科学院大学物理科学学院, 北京 101408
  • 收稿日期:2016-05-03 修回日期:2016-05-17 发布日期:2017-01-15
  • 通讯作者: 奚婷婷,E-mail:ttxi@ucas.ac.cn
  • 基金资助:

    中国科学院青年创新促进会项目(2014143)资助

Femtosecond laser filamentation with phase plates in air

ZHANG Xiaoling, XI Tingting   

  1. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
  • Received:2016-05-03 Revised:2016-05-17 Published:2017-01-15

摘要:

对均匀和非均匀分布的两种相位板调制下飞秒激光成丝过程进行理论研究。研究表明,两种情况下飞秒激光都形成模式可控的细丝阵列。对比发现,使用均匀相位板产生的细丝模式更为分隔清晰且稳定,而非均匀分布的相位板使激光形成的细丝阵列长度更长。

关键词: 飞秒激光成丝, 相位板, 细丝阵列

Abstract:

The distribution and evolution of filamentation of femtosecond laser pulses with the chessboard-like and grid-like phase plates, respectively, in air are numerically studied. It is demonstrated that the filamentation can be controlled by using the two phase plates. More clearly separated and more stable filaments are formed by using the chessboard-like phase plate, while longer filaments are formed by using the grid-like phase plate.

Key words: femtosecond laser filamentation, phase plate, filament array

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