From filamentation in condensed media to filamentation in gases

被引:63
作者
Kosareva, OG [1 ]
Kandidov, VP
Brodeur, A
Chin, SL
机构
[1] Moscow MV Lomonosov State Univ, Ctr Int Laser, Dept Phys, Moscow 119899, Russia
[2] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1K 7P4, Canada
[3] Univ Laval, Dept Phys, Quebec City, PQ G1K 7P4, Canada
关键词
D O I
10.1142/S0218863597000368
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrated how the moving focus model developed for condensed media should be modified for the explanation of experiments on filamentation of high-power femtosecond laser pulses in air. This modification is based on the consideration of gas ionization in high-intensity laser field. Numerical simulations based on this modified model allow for the explanation not only of filamentation itself but also the accompanying phenomena such as refocusing and conical emission.
引用
收藏
页码:485 / 494
页数:10
相关论文
共 23 条
  • [1] Akhmanov S. A., 1972, LASER HDB, P1151
  • [2] AKHMANOV SA, 1967, SOV PHYS JETP-USSR, V24, P198
  • [3] AKHMANOV SA, 1966, ZH EKSP TEOR FIZ, V23, P1025
  • [4] ALASHKEVICH VA, 1971, JETP LETT, V13, P36
  • [5] [Anonymous], 1967, IZV VUZOV RADIOFIZ
  • [6] SELF-CHANNELING OF HIGH-PEAK-POWER FEMTOSECOND LASER-PULSES IN AIR
    BRAUN, A
    KORN, G
    LIU, X
    DU, D
    SQUIER, J
    MOUROU, G
    [J]. OPTICS LETTERS, 1995, 20 (01) : 73 - 75
  • [7] Moving focus in the propagation of ultrashort laser pulses in air
    Brodeur, A
    Chien, CY
    Ilkov, FA
    Chin, SL
    Kosareva, OG
    Kandidov, VP
    [J]. OPTICS LETTERS, 1997, 22 (05) : 304 - 306
  • [8] SELF-TRAPPING OF OPTICAL BEAMS
    CHIAO, RY
    GARMIRE, E
    TOWNES, CH
    [J]. PHYSICAL REVIEW LETTERS, 1964, 13 (15) : 479 - &
  • [9] COMPUTER STUDIES IN SELF-FOCUSING
    DAWES, EL
    MARBURGER, JH
    [J]. PHYSICAL REVIEW, 1969, 179 (03): : 862 - +
  • [10] DYNAMICS AND CHARACTERISTICS OF SELF-TRAPPING OF INTENSE LIGHT BEAMS
    GARMIRE, E
    CHIAO, RY
    TOWNES, CH
    [J]. PHYSICAL REVIEW LETTERS, 1966, 16 (09) : 347 - &