Relative Amplitudes of External Satellites of Superfine-Structure Multiplets in the Saturated Absorption Spectrum of SiF4

I. R. Krylov, D. A. Akulinin, A. D. Chubykin

Research output

Abstract

Variation of amplitudes of Doppler-free saturated absorption resonances as a result of changes in the gas pressure and power of light waves is studied theoretically and experimentally. The results of the investigation are used for the interpretation of weak satellites of superfine-structure multiplets in the spectrum related to tunnel transitions between energy states of a molecule corresponding to its rotation about equivalent symmetry axes. Relative amplitudes of satellites of the AFE and FEF multiplets of the superfine structure of the SiF4 molecule in the frequency tuning interval of a CO2 laser operating at the P(38) line of the 9.7-μm band are studied experimentally. It is confirmed that the variation of relative amplitudes of the satellites is caused mainly by the fact that the magnitudes of the self-induced transparency of the medium that are created by each light wave for itself are different for the main resonances of the multiplet and for their satellites. The discrepancy between the experimental a
Original languageEnglish
Pages (from-to)195-201
Number of pages7
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume119
Issue number2
DOIs
Publication statusPublished - 2015

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