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Experiments demonstrating improved laser media pumping using electron-beam concentration by means of a backscattering mirror are reported. The backscattering mirror increases the electron pumping density by as much as a factor of 3 at low gas pressures. Use of the concentrator resulted in more than a 50% increase in Ar*2 excimer emission. The N2(C→B) amplified spontaneous emission can be saturated on a gain length of only 10 cm.
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Sauerbrey et al. (1987) studied this question.
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