High resolution spectroscopy and potential determination of the (3)Π1 state of NaCs
作者： O. Docenko , M. Tamanis , J. Zaharova , R. Ferber , A. Pashov
DOI: 10.1063/1.2189237
关键词: Laser 、 Potential energy 、 Laser-induced fluorescence 、 Ion laser 、 Atomic physics 、 Quantum number 、 Chemistry 、 Spectroscopy 、 Buffer gas 、 Excited state 、 Physical and Theoretical Chemistry 、 General Physics and Astronomy
摘要: The (3)Π1 state of the NaCs molecule was studied by high resolution Fourier-transform spectroscopy. (3)Π1→XΣ+1 laser induced fluorescence excited an Ar+ ion or a single-mode frequency-doubled cw Nd:YAG laser. presence argon buffer gas yielded rich rotational relaxation spectra allowing to enlarge data set for term values, as well observe Λ splittings in wide range vibrational (v′) and (J′) quantum numbers. field includes about 820 energy levels from v′=0 37 J′=3 190, which corresponds ca. 95% potential depth. Direct fit curve level energies is realized using inverted perturbation approach method; Dunham coefficients also presented.
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