Open AccessSuppression of small-scale self focusing of high power laser using moving beam
Author(s) -
Cheng Wenyong,
Xiaomin Zhang,
Jingqin Su,
Zhao Shengzhi,
Jun Dong,
Ping Li,
Lidan Zhou
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.7012
Subject(s) - beam (structure) , optics , laser beam quality , beam parameter product , physics , self focusing , scale (ratio) , smoothing , m squared , power (physics) , beam diameter , dispersion (optics) , field (mathematics) , laser beams , laser , computer science , quantum mechanics , computer vision , mathematics , pure mathematics
The concept of “moving beam” in near field is proposed. It is found that the device of smoothing by spectral dispersion SSD can generate “moving beam” in the near field. The mechanism and the condition for generating “moving beam” the motion characteristics of the “moving beam” and the suppression of small-scale self focusing are analyzed theoretically. The numerical simulations agree with the theoretical analyses.