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Issue 4, 2024
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1981

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May

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Reviews of topical problems


Polyatomic molecules in a strong infrared field

,
Institute of Spectroscopy, Russian Academy of Sciences, ul. Fizicheskaya 5, Troitsk, Moscow, 108840, Russian Federation

A review is given of the physical phenomena observed when polyatomic molecules interact with intense infrared radiation pulses. A brief historical account is given of earlier investigations and the main processes are classified. Then, the following topics are considered: 1) multiphoton infrared absorption and transition of molecules through lower vibrational levels; 2) dynamics of molecular excitation in a vibrational quasicontinuum and distribution of the vibrational energy between the modes and levels; 3) dissociation of highly excited molecules. The main experimental and theoretical results, and possible future trends are discussed. The review concludes with a brief list and illustrations of typical applications of the phenomena described in molecular spectroscopy, chemical physics, nuclear chemistry, and chemical synthesis.

Fulltext pdf (1.4 MB)
Fulltext is also available at DOI: 10.1070/PU1981v024n05ABEH004833
PACS: 33.20.Ea, 33.80.Kn, 33.10.Gx, 82.80.Di
DOI: 10.1070/PU1981v024n05ABEH004833
URL: https://ufn.ru/en/articles/1981/5/b/
Citation: Letokhov V S, Makarov A A "Polyatomic molecules in a strong infrared field" Sov. Phys. Usp. 24 366–393 (1981)
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Оригинал: Летохов В С, Макаров А А «Многоатомные молекулы в сильном инфракрасном поле» УФН 134 45–91 (1981); DOI: 10.3367/UFNr.0134.198105b.0045

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