Doppler-Free Polarization Spectroscopy of Diatomic Molecules in Flame Reactions

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Gas phase reactions are used to produce radicals or other molecules which can hardly be evaporated. The conditions of this production method require a sensitive spectroscopic technique if sub-Doppler spectra are to be recorded. Different techniques are discussed and Doppler-free polarization spectroscopy is shown to offer the highest sensitivity for the study of these species. First polarization spectra of the A 1∑−X 1∑ (1, 0) transition of BaO and the B 2∑−X 2∑ (0,0) transition of CaCl are reported.
Original languageEnglish
Pages (from-to)159-164
JournalOptics Communications
Issue number3
Publication statusPublished - 1983
Externally publishedYes


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