Second Harmonic Generation (SHG) of Intense Laser Beams
N. Gupta
A study on the phenomenon of second harmonic generation (SHG) of intense laser beams in nonlinear optical media is given. Emphasis is put on explaining the basic physics of the phenomenon while minimizing the mathematics. Various phase matching techniques for the SHG also have been explained in detail. As a special case SHG in fourth state of matter, plasma, also has been discussed.
Keywords: Laser beam, nonlinear optical media, plasma, second harmonic generation (SHG), frequency doubling, phase matching