Characteristics of multiple filaments generated by femtosecond laser pulses in air: Prefocused versus free propagation

被引：30
|
作者：
Hao, Zuoqiang
Zhang, Jie
Zhang, Zhe
Yuan, Xiaohui
Zheng, Zhiyuan
Lu, Xin
Jin, Zhan
Wang, Zhaohua
Zhong, Jiayong
Liu, Yunquan
机构：
[1] Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710068, Peoples R China
[3] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
来源：
PHYSICAL REVIEW E | 2006年 / 74卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.74.066402
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The characteristics of the multiple filaments formed by prefocused and freely propagating femtosecond laser pulses are investigated and compared. It is shown in our experiments that the diameter, length, stability, and interaction for the two cases can be quite different. The filaments formed by prefocused beam indicate dynamic spatial evolution with higher laser intensity and electron density. They have a typical diameter of 100 mu m are of shorter length. In the free propagation case, the filaments exhibit interesting properties such as hundred-meter propagation distance and mm-size diameter. Moreover, only the interaction of the filaments with the energy background affects the evolution of the filaments. Filament-filament interactions such as the filament splitting and merging were not observed in this case.
引用
收藏
页数：5
相关论文
共 50 条
  • [31] Propagation of Surface Acoustic Pulses Generated by a Femtosecond Laser in Thin Films on Solid Substrates
    Al. A. Kolomenskii
    S. N. Jerebtsov
    H. A. Schuessler
    International Journal of Thermophysics, 2004, 25 : 473 - 483
  • [32] Spectral dynamics studies on the supercontinuum channel of femtosecond laser pulses propagation in air
    Y.-Q. Liu
    J. Zhang
    Z. Jin
    Z.-Q. Hao
    Z. Zhang
    Z.-H. Wang
    Applied Physics B, 2008, 92 : 153 - 157
  • [33] Extremely broadened high-order harmonics generated by the femtosecond pulses propagating through the filaments in air
    Ganeev, R. A.
    Kuroda, H.
    APPLIED PHYSICS LETTERS, 2009, 95 (20)
  • [34] Effective dispersion length during the propagation of powerful femtosecond laser pulses in air
    Geints, Yu E.
    Zemlyanov, A. A.
    Minina, O., V
    26TH INTERNATIONAL SYMPOSIUM ON ATMOSPHERIC AND OCEAN OPTICS, ATMOSPHERIC PHYSICS, 2020, 11560
  • [35] Propagation of surface acoustic pulses generated by a femtosecond laser in thin films on solid substrates
    Kolomenskii, AA
    Jerebtsov, SN
    Schuessler, HA
    INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2004, 25 (02) : 473 - 483
  • [36] Optimization of multiple filamentation of femtosecond laser pulses in air using a pinhole
    Hao, Zuo-Qiang
    Zhang, Jie
    Xi, Ting-Ting
    Yuan, Xiao-Hui
    Zheng, Zhi-Yuan
    Lu, Xin
    Yu, Ming-Young
    Li, Yu-Tong
    Wang, Zhao-Hua
    Zhao, Wei
    Wei, Zhi-Yi
    OPTICS EXPRESS, 2007, 15 (24) : 16102 - 16109
  • [37] Estimation of the Characteristics of the Domain of Multiple Filamentation of Femtosecond Laser Pulses in Air Based on the Single Filamentation Model
    A. A. Zemlyanov
    Yu. E. Geints
    O. V. Minina
    Atmospheric and Oceanic Optics, 2020, 33 : 117 - 123
  • [38] Estimation of the Characteristics of the Domain of Multiple Filamentation of Femtosecond Laser Pulses in Air Based on the Single Filamentation Model
    Zemlyanov, A. A.
    Geints, Yu. E.
    Minina, O. V.
    ATMOSPHERIC AND OCEANIC OPTICS, 2020, 33 (02) : 117 - 123
  • [39] Characteristics of micro air plasma produced by double femtosecond laser pulses
    Zhang, Nan
    Wu, Zehua
    Xu, Kuanhong
    Zhu, Xiaonong
    OPTICS EXPRESS, 2012, 20 (03): : 2528 - 2538
  • [40] Characteristics of filaments at high-power femtosecond laser radiation propagation in air and water: II. Numerical simulation
    Geints Y.E.
    Zemlyanov A.A.
    Atmospheric and Oceanic Optics, 2011, 24 (2) : 152 - 155
12345