Argus wavelength scaling experiments have been performed on low (Be) and high (Au) Z disk targets with laser wavelengths of 1.06, 0.53, and 0.35 µm. The laser provided a 700-psec pulse with up to 100 J at 1.06 µm, 200 J at 0.53 µm, and 40 J at 0.35 µm. Laser intensities on target ranged from 3×1013 to over 3×1015 W/cm2, using an f/2.2 focusing system. One goal of the experiments was to measure the levels of the parametric instabilities which generate suprathermal electrons as a function of both laser wavelength and intensity.
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