Time domain photoacoustic relaxation measurements: Vibrational energy transfer for HD in v = 4, 5, and 6 Academic Article uri icon


  • Details of the experimental measurement of collisional relaxation from the upper vibrational states of HD are presented. Direct overtone pumping of HD in v = 4,5, and 6 was accomplished with a pulsed visible wavelength dye laser. The change in translational energy due to collisional relaxation is measured as a function of time by a sensitive pressure transducer placed at the cell wall. Data for vibrational relaxation in pure HD and in HD:4He mixtures are presented.

author list (cited authors)

  • Rohlfing, E. A., Gelfand, J., & Miles, R. B.

citation count

  • 10

publication date

  • August 1982