Abstract
The yield of the multiphoton dissociation of CF3Cl and CF3Br induced by TEA-CO2 laser pulses has been studied in the pressure range between 0.25 and 8 Torr, the laser wavelength being chosen so as to excite preferentially the minor isotopic components13CF3Cl and13CF3Br. For both compounds the dissociation probability is found either to increase almost linearly or to decrease monotonously with gas pressure, according as the laser beam is focused or unfocused, respectively. This behaviour is explained by rotational relaxation effects, and a value of 22ns·Torr for the rotational self-relaxation time of CF3Cl is obtained.
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Nève de Mévergnies, M. Effect of rotational relaxation on the yield of the multiphoton dissociation of CF3Cl and CF3Br under TEA-CO2 laser pulses. Appl. Phys. B 29, 125–130 (1982). https://doi.org/10.1007/BF00692774
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DOI: https://doi.org/10.1007/BF00692774