The current paper investigates stimulated Raman scattering (SRS) when laser-induced plasma is formed in heavy water by focusing an intense pulsed 532 nm Nd:YAG laser beam at room temperature. An unexpected low-frequency SRS line attributed to the lattice translational modes of ice-VII (D2O) is observed. The pressure of the plasma shockwave is estimated using low-frequency SRS line shift.

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The small signal gain and saturation intensity of a KrF discharge laser module have been measured in the peak gain region of 248.22 to 248.40 nm. The gain has also been measured for the frequency-doubled argon-ion laser line at 248.25 nm and found to be equal to the peak KrF gain of 0.143+or-0.002 cm-1 to within the experimental accuracy. The best-fit saturation intensity for this wavelength region was found to be 2.3+or-0.3 MW cm-2.