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Kvantovaya Elektronika, 1985, Volume 12, Number 1, Pages 115–116 (Mi qe5850)  

Mechanisms of formation of amino acid radicals in a laser radiation field

A. G. Arutyunyan, K. M. L'vov, A. O. Mnatsakanyan, V. A. Oganesyan, N. V. Shakhnazaryan
Abstract: An investigation was made of the photoionization of aromatic amino acids by nanosecond and picosecond ultraviolet radiation at liquid nitrogen temperature. When specimens were irradiated by 266-nm picosecond pulses at different repetition frequencies, the singlet and triplet photoionization channels were separated and ionization probabilities were obtained separately for the two channels. In the nanosecond lasing regime, photoionization by two pulses at λ = 270 and 360 nm was studied with the aim of selective irradiation of amino acids. A λ = 360 nm pulse depleted the S1 excited state by stimulated emission and a transition to the ground state. Allowing for this effect, photoionization probabilities were obtained for two-frequency excitation in two different channels: singlet and triplet.
Received: 15.06.1984
English version:
Soviet Journal of Quantum Electronics, 1985, Volume 15, Issue 1, Pages 65–67
DOI: https://doi.org/10.1070/QE1985v015n01ABEH005850
Bibliographic databases:
Document Type: Article
UDC: 535.21
PACS: 82.50.Hp, 87.15.Mi, 87.15.Rn
Language: Russian


Citation: A. G. Arutyunyan, K. M. L'vov, A. O. Mnatsakanyan, V. A. Oganesyan, N. V. Shakhnazaryan, “Mechanisms of formation of amino acid radicals in a laser radiation field”, Kvantovaya Elektronika, 12:1 (1985), 115–116 [Sov J Quantum Electron, 15:1 (1985), 65–67]
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