Diode laser studies of SF6 and NH3 molecules excited by intense IR radiation

Yu. A. Kuritsyn; G. N. Makarov; V. R. Mironenko; I. Pak

doi:10.1117/12.166226

26 January 1994 Diode laser studies of SF₆ and NH₃ molecules excited by intense IR radiation

Yu. A. Kuritsyn, G. N. Makarov, V. R. Mironenko, I. Pak

Proceedings Volume 2205, 11th Symposium and School on High-Resolution Molecular Spectroscopy; (1994) https://doi.org/10.1117/12.166226
Event: High Resolution Molecular Spectroscopy: 11th Symposium and School, 1993, Moscow, Russian Federation

Abstract

During recent years we studied the dynamics of collisionless SF₆ and NH₃ molecules' excitation by TEA CO₂ laser radiation. The main purpose of this research was to explain why the molecules, which have no exact resonance with the CO₂ laser field, absorb one or several IR quanta. We made measurements in a free supersonic jet and in a cell. Exciting energy densities were among 10^-2 and 2.0 J cm^-2. The fraction of molecules excited from individual rotational levels was measured and its dependences on the CO₂ laser frequency and on the energy density were investigated. We present the comparison of the experimental data with theoretical calculations, and questions that still remain unclear are discussed.

Citation Download Citation

Yu. A. Kuritsyn, G. N. Makarov, V. R. Mironenko, and I. Pak "Diode laser studies of SF₆ and NH₃ molecules excited by intense IR radiation", Proc. SPIE 2205, 11th Symposium and School on High-Resolution Molecular Spectroscopy, (26 January 1994); https://doi.org/10.1117/12.166226

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