Title :
Growth of high power laser ripple in plasma and its effects on upper hybrid wave excitation: Relativistic effects
Author :
Gill, Tarsem Singh ; Saini, Nareshpal Singh ; Mahajan, Ranju
Author_Institution :
Dept. of Phys., Guru Nanak Dev Univ., Amritsar
Abstract :
The growth of a radially symmetric ripple superimposed on a single intense Gaussian laser beam in a collisionless magnetized plasma is investigated. WKB and Paraxial ray approximations are used to calculate wave equation for the main beam and the ripple. Numerical results show that the relativistic power of laser beam, the dynamics of ripple gets affected by its position and phase angle as well as some other parameters. The effect of growth of ripple on excitation of upper hybrid wave is also studied.
Keywords :
WKB calculations; laser beams; plasma electromagnetic wave propagation; relativistic plasmas; wave equations; Gaussian laser beam; WKB calculation; collisionless magnetized plasma; high power laser ripple; paraxial ray approximation; radially symmetric ripple; relativistic power; upper hybrid wave excitation; wave equation; Laser beams; Laser excitation; Laser fusion; Laser theory; Particle beams; Plasma accelerators; Plasma waves; Power lasers; Relativistic effects; X-ray lasers;
Conference_Titel :
Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on
Conference_Location :
Karlsruhe
Print_ISBN :
978-1-4244-1929-6
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2008.4590995
