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Fluorescence of CaO (B1Π→X1Σ+) in a Laser-Induced Plasma
https://doi.org/10.47612/0514-7506-2022-89-6-777-781
Abstract
The scheme of CaO molecular fluorescence in laser-induced plasma involving the transitions between B<sup>1</sup>Π and X<sup>1</sup>Σ<sup>+</sup> electron states was proposed and implemented. In fluorescence spectra CaO molecular bands were observed at wavelengths of 408.43 (band 0, 1) and 421 nm. The band at 421 nm was assigned to the (0, 3) transition using the energies of vibrational levels calculated by molecular constants. Selective excitation of rotational states was demonstrated, which is observed as a shift of the fluorescence intensity maximum in a spectrum with the change of the wavelength of an exciting laser within the vibrational band. The proposed scheme for CaO fluorescence was used in spatially resolved measurements to show the distribution of calcium oxide molecules in laser-induced plasma.
About the Authors
A. S. Zakuskin
Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow
B. G. Beglaryan
Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow
T. A. Labutin
Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow
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Review
For citations:
Zakuskin A.S., Beglaryan B.G., Labutin T.A. Fluorescence of CaO (B1Π→X1Σ+) in a Laser-Induced Plasma. Zhurnal Prikladnoii Spektroskopii. 2022;89(6):777-781. (In Russ.) https://doi.org/10.47612/0514-7506-2022-89-6-777-781
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