High Resolution Overtone Spectroscopy On A Molecular Beam

C Douketis; D Anex; J P Reilly

doi:10.1117/12.938949

25 November 1986 High Resolution Overtone Spectroscopy On A Molecular Beam

C Douketis, D Anex, J P Reilly

Proceedings Volume 0669, Laser Applications in Chemistry; (1986) https://doi.org/10.1117/12.938949
Event: 1986 Quebec Symposium, 1986, Quebec City, Canada

Abstract

An apparatus for studying high resolution overtone spectroscopy on a molecular beam has been constructed. With it molecular overtone lineshapes with dramatically reduced spectral congestion and Doppler broadening can be interrogated. A high sensitivity, low temperature bolometer is used to monitor the energy content of the molecular beam. A continuously tunable narrow band laser source, efficiently amplified in a resonant Fabry Perot cavity through which the molecular beam travels, imparts vibrational energy to the molecules. This is then transferred to the bolometer and therefore gives rise to the spectrum when the frequency is scanned. ▵v = 4 overtones of H₂O have been studied. Other molecules have also been considered and will be discussed in terms of the nearby density of dark states.

Citation Download Citation

C Douketis, D Anex, and J P Reilly "High Resolution Overtone Spectroscopy On A Molecular Beam", Proc. SPIE 0669, Laser Applications in Chemistry, (25 November 1986); https://doi.org/10.1117/12.938949

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