Second Harmonic Generation of Stimulated Raman Scattered Light in Underdense Plasmas.

1995 ◽  
Author(s):  
K. M. Krushelnick ◽  
A. Ting ◽  
H. R. Burris ◽  
A. Fisher ◽  
C. Manka
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Scattered Light ◽  
Underdense Plasmas ◽  
Stimulated Raman

Second Harmonic Generation of Stimulated Raman Scattered Light in Underdense Plasmas

1995 ◽  
Vol 75 (20) ◽  
pp. 3681-3684 ◽  
Author(s):  
K. Krushelnick ◽  
A. Ting ◽  
H. R. Burris ◽  
A. Fisher ◽  
C. Manka ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Scattered Light ◽  
Underdense Plasmas ◽  
Stimulated Raman

Second harmonic generation and its interaction with relativistic plasma waves driven by forward Raman instability in underdense plasmas

1997 ◽  
Vol 4 (4) ◽  
pp. 1127-1131 ◽  
Author(s):  
V. Malka ◽  
A. Modena ◽  
Z. Najmudin ◽  
A. E. Dangor ◽  
C. E. Clayton ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Plasma Waves ◽  
Relativistic Plasma ◽  
Underdense Plasmas

scholarly journals Forward second harmonic emission from laser plasma filaments

1992 ◽  
Vol 10 (4) ◽  
pp. 617-627
Author(s):  
I. Deha ◽  
V. Biancalana ◽  
F. Bianconi ◽  
M. Borghesi ◽  
P. Chessa ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Laser Intensity ◽  
Laser Energy ◽  
Second Harmonic ◽  
Target Position ◽  
Thin Foil ◽  
Laser Pulses ◽  
Time Resolved ◽  
Underdense Plasmas

Experimental observations are reported on the interaction of 1-μm laser light with underdense plasmas (n ≤ 0·25 nc) from thin foil plastic targets. Nominal laser intensity on target was up to 3 × 1013 W/cm2 in a 3-ns pulse, but much higher intensity was reached due to spiky laser pulses. We studied forward-emitted second harmonic light as a diagnostic of the interaction and in particular of the occurrence of filamentation. Measurements included: energy monitoring of 2ω forward emission vs. target position and laser energy; time resolved (120-ps gate) imaging of the interaction region cross section. The second harmonic energy level was found to be sensitive to target position. In addition, the images obtained with the target in position of maximum second harmonic generation showed unstable structures whose scale length is comparable with the expected one for maximum filamentation growth. These results are shortly discussed in the framework of stationary filamentation theory and second harmonic generation in inhomogeneous media.

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