Abstract
A laser-aided technique has been used for measuring time-resolved optical transmissions of xenon flash lamps at numerous visible and infrared wavelengths, flash-lamp current densities, lamp diameters, pulse durations, and xenon pressures. Long-pulse (˜ 600-µs) and short-pulse (˜ 10-µs) cases specific for optically pumping solid-state, dye, and atomic iodine lasers were studied. Opacity measurements were made for flash-lamp current densities up to 30 kA/cm(2) . Flash lamps having fused silica envelope diameters between 0.8 and 4.5 cm and xenon pressures between 2 and 450 Torr were investigated in these experiments. Xenon temperatures between 6000 and 25,000 K were estimated from the frequencies of observed arc-acoustic oscillations. Important applications for increasing the pumping efficiencies of large Nd:glass and photolytic iodine laser amplifiers are discussed.
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