Plasma wave and second-harmonic generation of intense laser beams due to relativistic effects

2004 ◽  
Vol 11 (6) ◽  
pp. 3186-3190 ◽  
Author(s):  
Hyder A. Salih ◽  
R. P. Sharma ◽  
M. Rafat
Keyword(s):  
Second Harmonic Generation ◽  
Plasma Wave ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Relativistic Effects ◽  
Intense Laser ◽  
Laser Beams

NONLINEAR MAGNETO-OPTICAL EFFECT IN VACUUM: INHOMOGENEITY-ORIGINATED SECOND-HARMONIC GENERATION IN DC MAGNETIC FIELD

1992 ◽  
Vol 01 (01) ◽  
pp. 51-72 ◽  
Author(s):  
Y.J. DING ◽  
A.E. KAPLAN
Keyword(s):  
Magnetic Field ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Quantum Electrodynamics ◽  
Second Harmonic ◽  
Intense Laser ◽  
Gaussian Laser Beam ◽  
Optical Wave ◽  
Dc Magnetic Field ◽  
Magneto Optical Effect

The photon-photon scattering predicted by quantum electrodynamics can give rise to second-harmonic generation of intense laser radiation in a dc magnetic field due to broken symmetry of interaction even in the “box” diagram approximation. This effect is possible only when the field system (i.e. optical wave+dc field) is inhomogeneous, in particular when a Gaussian laser beam (i.e. nonplane wave) propagates in either homogeneous or inhomogeneous dc magnetic field.

scholarly journals Second-harmonic generation by a chirped laser pulse with the exponential density ramp profile in the presence of a planar magnetostatic wiggler

2019 ◽  
Vol 37 (4) ◽  
pp. 442-447 ◽  
Author(s):  
Niti Kant ◽  
Arvinder Singh ◽  
Vishal Thakur
Keyword(s):  
Laser Pulse ◽  
Second Harmonic Generation ◽  
Lorentz Force ◽  
Plasma Wave ◽  
Plasma Density ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Second Order ◽  
Self Focusing ◽  
Chirped Laser Pulse

AbstractSecond-harmonic generation of the relativistic self-focused chirped laser pulse in plasma has been studied with the exponential plasma density ramp profile in the presence of a planar magnetostatic wiggler. It is evident that the exponential plasma density ramp is helpful in enhancing second-harmonic generation as, with the introduction of the exponential plasma density ramp, self-focusing becomes stronger and hence, it leads to enhance the harmonic generation of the second order in the plasma. Also, it is observed that the efficiency of second-harmonic generation enhances significantly with an increase in the value of the chirp parameter. Further, the magnetostatic wiggler helps in enhancing the harmonic generation of the second order. This is due to the fact that dynamics of the oscillating electrons is altered due to the Lorentz force which, in turn, modifies the plasma wave and, hence, results in the efficient second-harmonic generation.

Second-harmonic generation in the vector synchronism of diverging laser beams

1985 ◽  
Vol 42 (2) ◽  
pp. 134-138
Author(s):  
B. V. Bokut' ◽  
N. S. Kazak ◽  
A. S. Lugina ◽  
E. M. Miklavskaya ◽  
A. V. Nadenenko ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Laser Beams ◽  
Vector Synchronism
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