Image of second harmonic emission generated from ponderomotively excited plasma density gradient

Mori, M.; Takahashi, E.; Kondo, K.
June 2002
Physics of Plasmas;Jun2002, Vol. 9 Issue 6, p2812
Academic Journal
Second harmonic generation from the plasma density gradient induced by ponderomotive force was studied. Images of the second harmonic emission at the focal point, where the intensity was above 10[sup 17] W/cm², were observed. These images strongly depended on the polarization of the pump pulse. The polarization of the second harmonic was the same as that of the pump pulse. Experimental results were well explained by the theoretical model.


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