Efficient Pulsed Chemical Laser

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Abstract
Output pulse observations are presented for a He-diluted CO2 laser pumped by vibrational-vibration (VV) energy transfer from vibrationally excited DF produced by the D2-F2 chain reaction. Flash photolysis of the F2 initiated the reaction. A 290-cc reaction chamber containing a 0.5-atm mixture with a mole ratio D2:F2:CO2:He = 0.33:1.8:10 gave a single-pulse output energy of 2.8 J. Relative to the amount of D2 present in the reaction chamber, this corresponds to a chemical efficiency greater than 5%.

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