Dependence of Zeeman splitting of spectral lines on the magnetic field magnitude for NO molecule


The paper presents an overview of experimental and theoretical results, which were obtained from the study of the dependence of Zeeman splitting of the vibrational-rotational lines of the 0–1 band of the nitric oxide molecule absorption spectra on the magnetic field magnitude. The experiments were performed at the Laboratory of Gas Lasers of P.N. Lebedev Physical Institute, Russian Academy of Sciences (FIAN). The method of laser magnetic resonance (LMR) with the use of a continuous-wave frequency-tunable CO laser were used to record the spectra. The theoretical analysis of LMR spectrograms was carried out at the Laboratory of Theoretical Spectroscopy of V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences (IAO SB RAS), where the numerical model was developed based on construction of the total effective Hamiltonian of the molecule accounting the interaction with an external magnetic field. The model allows calculation of LMR spectra under given conditions and description of the nonlinear dependence of splitting of rovibrational energy levels on the magnetic field magnitude. The comparison of calculated and experimental LMR spectrograms has shown that the numerical model adequately reproduces the positions of absorption peaks measured in a damped oscillating magnetic field.

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Correspondence to Yu. G. Borkov.

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Original Russian Text © Yu.G. Borkov, Yu.M. Klimachev, O.N. Sulakshina, 2015, published in Optika Atmosfery i Okeana.

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Borkov, Y.G., Klimachev, Y.M. & Sulakshina, O.N. Dependence of Zeeman splitting of spectral lines on the magnetic field magnitude for NO molecule. Atmos Ocean Opt 29, 103–118 (2016).

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  • Zeeman splitting
  • vibrational-rotational spectroscopy
  • nitric oxide
  • laser magnetic resonance
  • CO laser