R. Z. Martínez and D. Bermejo High-resolution stimulated Raman study of the first vibrational hot band of 14N2. Separate observation of the spectra of the ortho and para species. Journal of Raman Spectroscopy 44
High-resolution stimulated Raman spectra of the first hot band of nitrogen, 14 N2, have been obtained under conditions of low sample pressure and temperature thanks to the use of an optical pumping system. Analysis of the spectra has yielded improved values for the molecular constants obtained. Additionally, the rotational selectivity of the pumping process coupled with the negligible probability of nuclear spin interconversion in the time frame of the experiment has allowed the observation of the hot band spectra of the ortho and para species of 14 N2 separately.
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