Increase of the stimulated Raman scattering threshold at droplets by spectral broadening of nanosecond laser pulses

2012 ◽  
Vol 43 (12) ◽  
pp. 1935-1940 ◽  
Author(s):  
R. F. Hankel ◽  
A. Braeuer ◽  
A. Leipertz
2018 ◽  
Vol 63 (4) ◽  
pp. 285
Author(s):  
A. I. Ivanisik

We study the dynamics of nonlinear optical processes such as self-focusing, self-phase modulation, and stimulated Raman scattering in Kerr-liquids under the nanosecond laser pulse excitation. The results prove the existence of the transition Ginzburg–Frank-type effect, which promotes the appearance of new spectral components of the laser radiation at the medium boundary. The generation of extended anti-Stokes frequency-angular bands of stimulated Raman scattering is explained. When the velocity of a self-focusing focal spot matches the phase velocity of the non-linear polarization at the anti-Stokes Raman frequency and the phase velocity of the scattered axial radiation, the most intense frequency-angular bands appear. They are described by the equations typical of the Cherenkov radiation.


2014 ◽  
Vol 105 (2) ◽  
pp. 021103 ◽  
Author(s):  
Stefan Funkner ◽  
Katsuya Saito ◽  
Gudrun Niehues ◽  
Yoshiki Yazawa ◽  
Takashi Furuya ◽  
...  

1996 ◽  
Vol 21 (6) ◽  
pp. 381 ◽  
Author(s):  
V. Krylov ◽  
V. Bespalov ◽  
D. Staselko ◽  
A. Rebane ◽  
O. Ollikainen ◽  
...  

2007 ◽  
Vol 102 (1) ◽  
pp. 98-105 ◽  
Author(s):  
A. A. Andreev ◽  
V. G. Bespalov ◽  
E. V. Ermolaeva ◽  
R. R. E. Salomaa

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