Modification of Vibrational Parameters of a <i>D</i><sub>∞<i>h</i></sub>-Symmetric Triatomic Molecule in a Laser Plasma

Modification of Vibrational Parameters of a <i>D</i><sub>∞<i>h</i></sub>-Symmetric Triatomic Molecule in a Laser Plasma

We estimate theoretically the strong-field-modified vibrational parameters of three-atomic <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>A</mi><mi>B</mi><mi>A</mi>...

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Bibliographic Details
Main Authors: Aleksei S. Kornev, Vladislav E. Chernov, Petr Kubelík, Martin Ferus
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Symmetry
Subjects:
<i>D</i><sub>∞<i>h</i></sub>-symmetric triatomic molecule
laser-modified vibrational parameters
laser plasma
Online Access:https://www.mdpi.com/2073-8994/14/11/2382
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Summary:We estimate theoretically the strong-field-modified vibrational parameters of three-atomic <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>A</mi><mi>B</mi><mi>A</mi></mrow></semantics></math></inline-formula> molecules with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>D</mi><mrow><mo>∞</mo><mi>h</mi></mrow></msub></semantics></math></inline-formula> symmetry in a laser-induced plasma. The linear CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> and CS<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> molecules in the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>X</mi><mspace width="0.166667em"></mspace><msup><mrow></mrow><mn>1</mn></msup><msub><mi mathvariant="sans-serif">Σ</mi><mi>g</mi></msub></mrow></semantics></math></inline-formula> state are considered as examples. We show that double degeneracy of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi mathvariant="sans-serif">Π</mi><mi>u</mi></msub></semantics></math></inline-formula> mode is removed due to reduction of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>A</mi><mi>B</mi><mi>A</mi></mrow></semantics></math></inline-formula> molecule symmetry by the laser field. The linear form of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>A</mi><mi>B</mi><mi>A</mi></mrow></semantics></math></inline-formula> molecule is preserved, the bond length being elongated.
ISSN:2073-8994

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