Abstract
Variation in light output of Xenon flashlamp with electric discharge condition is measured in -the spectral region from 3500Å to 9500Å. The increase of time-integrated output intensity with input, energy is greater as the wavelength is shorter. At a given value of input energy, when we compare the discharge of long duration with that of short duration, the time-integrated output intensity by the former is less in the range from 3500Å to 5000Å but more in the range from. 5000Å to 9500Å than by the latter. When each discharge has the same peak current, the longer the rise time, .the higher becomes the peak intensity throughout the spectrum. Hence, the optimum discharge condition of Xenon flashlamp for optical pumping should be decided according to the wavelength used for pumping with due consideration on the fluorescence quantum efficiency of the pumping light and the life time of metastable state of the laser material.
