Self focusing and axial phase modulation of laser beams carrying orbital angular momentum in collisionless plasmas

被引：22
作者：
Gupta, Naveen [1 ]
机构：
[1] Lovely Profess Univ, Phagwara, India
来源：
OPTICAL AND QUANTUM ELECTRONICS | 2021年 / 53卷 / 11期
关键词：
Self focusing; Laguerre Gaussian; Axial phase modulation; Ponderomotive force; Self trapping; RADIATION; LIGHT;
D O I：
10.1007/s11082-021-03274-3
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Nonlinear optical self action effects of intense laser beams propagating through underdense plasmas have been investigated theoretically. The optical nonlinearity of the plasma has been modelled by ponderomotive force originating through intensity gradient over the cross section of the laser beam. In order to investigate the effect of angular twist of the laser beam, the irradiance over its cross section has been considered to be Laguerre Gaussian (L.G). Formulation is based on finding semi analytical solution for the wave equation for the field of laser beam with the help of moment theory approach.
引用
收藏
页数：18
相关论文
共 27 条
  • [1] ORBITAL ANGULAR-MOMENTUM OF LIGHT AND THE TRANSFORMATION OF LAGUERRE-GAUSSIAN LASER MODES
    ALLEN, L
    BEIJERSBERGEN, MW
    SPREEUW, RJC
    WOERDMAN, JP
    [J]. PHYSICAL REVIEW A, 1992, 45 (11): : 8185 - 8189
  • [2] ASKARYAN GA, 1962, SOV PHYS JETP-USSR, V15, P1088
  • [3] Mechanical detection and measurement of the angular momentum of light
    Beth, RA
    [J]. PHYSICAL REVIEW, 1936, 50 (02): : 115 - 125
  • [4] Increasing the upper-limit intensity in relativistic and ponderomotive self-focusing by using plasma with a linear electron temperature ramp
    Bokaei, B.
    Niknam, A. R.
    Milani, M. R. Jafari
    [J]. PLASMA SOURCES SCIENCE & TECHNOLOGY, 2014, 23 (06)
  • [5] OBSERVATION OF RELATIVISTIC AND CHARGE-DISPLACEMENT SELF-CHANNELING OF INTENSE SUBPICOSECOND ULTRAVIOLET (248 NM) RADIATION IN PLASMAS
    BORISOV, AB
    BOROVSKIY, AV
    KOROBKIN, VV
    PROKHOROV, AM
    SHIRYAEV, OB
    SHI, XM
    LUK, TS
    MCPHERSON, A
    SOLEM, JC
    BOYER, K
    RHODES, CK
    [J]. PHYSICAL REVIEW LETTERS, 1992, 68 (15) : 2309 - 2312
  • [6] LASER-DRIVEN FUSION
    BRUECKNER, KA
    JORNA, S
    [J]. REVIEWS OF MODERN PHYSICS, 1974, 46 (02) : 325 - 367
  • [7] PERIODIC BREAKUP OF OPTICAL BEAMS DUE TO SELF-FOCUSING
    CAMPILLO, AJ
    SHAPIRO, SL
    SUYDAM, BR
    [J]. APPLIED PHYSICS LETTERS, 1973, 23 (11) : 628 - 630
  • [8] Optically controlled seeding of Raman forward scattering and injection of electrons in a self-modulated laser-wakefield accelerator
    Chen, WT
    Chien, TY
    Lee, CH
    Lin, JY
    Wang, J
    Chen, SY
    [J]. PHYSICAL REVIEW LETTERS, 2004, 92 (07)
  • [9] SELF-TRAPPING OF OPTICAL BEAMS
    CHIAO, RY
    GARMIRE, E
    TOWNES, CH
    [J]. PHYSICAL REVIEW LETTERS, 1964, 13 (15) : 479 - &
  • [10] TABLETOP X-RAY LASERS
    EDER, DC
    AMENDT, P
    DASILVA, LB
    LONDON, RA
    MACGOWAN, BJ
    MATTHEWS, DL
    PENETRANTE, BM
    ROSEN, MD
    WILKS, SC
    DONNELLY, TD
    FALCONE, RW
    STROBEL, GL
    [J]. PHYSICS OF PLASMAS, 1994, 1 (05) : 1744 - 1752
123