Observation of collisional relaxation from HD v = 5 and v = 6 by direct overtone pumping and photoacoustic detection
- 15 November 1981
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 75 (10) , 4893-4896
- https://doi.org/10.1063/1.441927
Abstract
We present here the first detailed measurement on the mechanism of collisional relaxation from the upper vibrational states of HD. Preliminary results are given in which we have measured collisional relaxation following the direct overtone pumping of HD into v = 5 and v = 6 with a pulsed visible wavelength dye laser. These time‐resolved photoacoustic data indicate that the vibrational to transitional (V–T) and vibrational to vibrational (V–V) relaxation rates for collisions with ground state molecules become equal near v = 5.Keywords
This publication has 13 references indexed in Scilit:
- Modelling of relaxation measurements on highly vibrationally excited HD using direct overtone pumping and photoacoustic detectionChemical Physics, 1980
- Quantitative laser photoacoustic detector spectroscopy: HD 5-0 transitionsJournal of Quantitative Spectroscopy and Radiative Transfer, 1980
- Observations on theRotational-Vibrational Band of HDPhysical Review Letters, 1979
- Experimental study of the vibrational relaxation of HD in collision with HD and 4He in the range 80–400 KChemical Physics Letters, 1979
- Time-resolved opto-acoustic spectroscopyChemical Physics, 1978
- The rotation-vibration spectrum of HD - Wavelength and intensity measurements of the 3-0, 4-0, 5-0, and 6-0 electric dipole bandsThe Astrophysical Journal, 1976
- Vibrational relaxation of ortho and para-H2 in the range 400-50 KChemical Physics Letters, 1975
- Vibrational relaxation of D2 in the range 400-50°KChemical Physics Letters, 1974
- Collisional deactivation of vibrationally excited singlet molecular oxygenThe Journal of Chemical Physics, 1973
- Off-Axis Paths in Spherical Mirror InterferometersApplied Optics, 1964