Abstract
Experimental studies on a pulsed CO TE laser and a pulsed CS2/O2 chemical laser are performed with the same laser apparatus, and the two schemes are compared. The output energy of the CO TE laser is considerably enhanced by the addition of N2, He and SF6. When 0.5-Torr SF6 is added to 35-Torr CO, the output energy increases 4.7-fold over that without SF6. With the CS2/O2 chemical laser, output energies more than 3 times those of the CO TE laser are obtained. From spectroscopic measurements of the CS2/O2 chemical laser, many vibrational-rotational transition lines are observed in the V=15-14 to V=5-4 vibrational bands. For the CO TE laser, all the observed lasing lines are in the vibrational bands from V=11-10 to V=9-8. With the addition of 0.5-Torr SF6, the vibrational transition bands extend through V=12-11 to V=6-5.
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