Study of atmospheric trace gases by sub-Doppler diode laser spectroscopy

Luca Piccarreta; Anna Maria Santoro; Marcel Snels

doi:10.1117/12.378143

25 February 2000 Study of atmospheric trace gases by sub-Doppler diode laser spectroscopy

Luca Piccarreta, Anna Maria Santoro, Marcel Snels

Author Affiliations +

Proceedings Volume 4070, ALT '99 International Conference on Advanced Laser Technologies; (2000) https://doi.org/10.1117/12.378143
Event: ALT'99 International Conference: Advanced Laser Technologies, 1999, Potenza-Lecce, Italy

Abstract

Recent results of sub-Doppler IR diode laser spectroscopy of freons in a supersonic jet are reported. The v₁ parallel band of CCl₃F has been recorded at a rotational temperature of about 20 K, in a supersonic slit jet expansion. A detailed rotational analysis has been performed yielding band origins and rotational constants for the three most abundant isotopomers C³⁵Cl₃F, C³⁵Cl₂ClF and C³⁵Cl³⁷Cl₂F. The CHF₂Cl molecule has two strong fundamental bands in the atmospheric window, v₃ at 1108.7278 cm^-1 and v₈ at 1127.2844 cm^-1. A preliminary analysis of the v₃ band of the CHF₂³⁷Cl isotopic species will be presented.

Citation Download Citation

Luca Piccarreta, Anna Maria Santoro, and Marcel Snels "Study of atmospheric trace gases by sub-Doppler diode laser spectroscopy", Proc. SPIE 4070, ALT '99 International Conference on Advanced Laser Technologies, (25 February 2000); https://doi.org/10.1117/12.378143

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