Infrared laser molecular solid interaction at low temperatures under ultrahigh vacuum
- 1 January 1979
- proceedings article
- Published by AIP Publishing in AIP Conference Proceedings
- Vol. 50 (1) , 49-54
- https://doi.org/10.1063/1.31706
Abstract
An apparatus for studies of infrared laser induced processes at low temperatures under ultrahigh vacuum, particularly for measurements in the IR finger print region between 900 and 4000 cm−1, is described. The apparatus has been employed to investigate the interaction between MWcm−2 CO2 laser pulses of 200 ns length and solid SF6 films at 67 K and base pressures in the low 10−10 mbar range. After excitation of the ν3(32SF6) vibration the pressure rise of all 32SF6 ion fragments, except F+ and SF+ 2, was observed, the rise time being in the millisecond range. The time constants of the decay of the individual ion fragments differ significantly.Keywords
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