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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2024, Volume 119, Issue 8, Pages 593–597
DOI: https://doi.org/10.31857/S1234567824080044 (Mi jetpl7204) 		 
OPTICS AND NUCLEAR PHYSICS

Formation of an O-shaped structure in the red wing of the frequency–angular spectrum during filamentation on a long atmospheric path

D. V. Pushkarevab, L. V. Selezneva, G. E. Rizaeva, D. S. Uryupinab, N. A. Zhidovtsevb, O. G. Kosarevaba, A. B. Savel'evba

a Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 Russia
b Faculty of Physics, Moscow State University, Moscow, 119991 Russia
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DOI: https://doi.org/10.31857/S1234567824080044
Abstract: An O-shaped structure at wavelengths of 930–960 nm in the frequency–angular spectrum of the supercontinuum generated during the filamentation of a femtosecond laser pulse with a central wavelength of 740 nm on a 75-m path in air has been observed experimentally. This feature of the frequency–angular spectrum is due to the presence of the absorption band of water vapor in the range of 930–960 nm and the anomalous dispersion region associated with this absorption. This result opens prospects for the remote single-pulse detection of impurities in air.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation
Foundation for the Development of Theoretical Physics and Mathematics BASIS
This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained. N.A. Zhidovtsev acknowledges the support of the Foundation for the Advancement of Theoretical Physics and Mathematics BASIS.
Received: 21.03.2024
Revised: 21.03.2024
Accepted: 22.03.2024
English version:
Journal of Experimental and Theoretical Physics Letters, 2024, Volume 119, Issue 8, Pages 599–603
DOI: https://doi.org/10.1134/S0021364024600770
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: D. V. Pushkarev, L. V. Seleznev, G. E. Rizaev, D. S. Uryupina, N. A. Zhidovtsev, O. G. Kosareva, A. B. Savel'ev, “Formation of an O-shaped structure in the red wing of the frequency–angular spectrum during filamentation on a long atmospheric path”, Pis'ma v Zh. Èksper. Teoret. Fiz., 119:8 (2024), 593–597; JETP Letters, 119:8 (2024), 599–603
Citation in format AMSBIB
\Bibitem{PusSelRiz24}
\by D.~V.~Pushkarev, L.~V.~Seleznev, G.~E.~Rizaev, D.~S.~Uryupina, N.~A.~Zhidovtsev, O.~G.~Kosareva, A.~B.~Savel'ev
\paper Formation of an O-shaped structure in the red wing of the frequency--angular spectrum during filamentation on a long atmospheric path
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2024
\vol 119
\issue 8
\pages 593--597
\mathnet{http://mi.mathnet.ru/jetpl7204}
\crossref{https://doi.org/10.31857/S1234567824080044}
\edn{https://elibrary.ru/KMBAQC}
\transl
\jour JETP Letters
\yr 2024
\vol 119
\issue 8
\pages 599--603
\crossref{https://doi.org/10.1134/S0021364024600770}
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