Vol. 28, issue 09, article # 3

Borkov Yu. G., Klimachev Yu. M., Sulakshina O. N. The dependence of Zeeman splitting of spectral lines of NO molecule on the magnetic field magnitude. // Optika Atmosfery i Okeana. 2015. V. 28. No. 09. P. 777-791. DOI: 10.15372/AOO20150903 [in Russian].
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This paper presents an overview of the experimental and theoretical results, which were obtained from the study the dependence of Zeeman splitting in the vibrational-rotational lines of 0–1 band of the absorption spectrum of nitric oxide molecule on the magnetic field. The experiments were performed in the laboratory of gas lasers at P.N. Lebedev Physical Institute of the Russian Academy of Science. To record the spectrum the method of laser magnetic resonance (LMR) with using continuous wave frequency-tunable CO laser has been applied. Theoretical analysis of LMR spectrograms was carried out in the laboratory of theoretical spectroscopy at V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, numerical model was developed. This model is based on the construction of the total effective Hamiltonian of the molecule including the interaction with an external magnetic field. The application of this model allowed us to simulate LMR spectra for given conditions and to describe the nonlinear dependence of the splitting of ro-vibrational energy levels on the magnetic field. The comparison of calculated and experimental LMR spectrograms demonstrated that the numerical model adequately reproduces the location of absorption peaks measured in a damped oscillating magnetic field.


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


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