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Zhurnal Tekhnicheskoi Fiziki, 2018, Volume 88, Issue 9, Pages 1336–1343
DOI: https://doi.org/10.21883/JTF.2018.09.46417.44-18 (Mi jtf5814) 		 
Physical approaches and problems of data interpretation in the life sciences

Polarized fluorescence in indole under two-photon excitation by femtosecond laser pulses

M. È. Sasina, V. I. Tushkanovab, A. G. Smolina, P. S. Shternina, O. S. Vasutinskiia

a Ioffe Institute, St. Petersburg
b Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg
Full-text PDF (212 kB)
DOI: https://doi.org/10.21883/JTF.2018.09.46417.44-18
Abstract: We have analyzed the decay of fluorescence intensity in indole dissolved in propylene glycol under two-photon excitation by linearly and circularly polarized femtosecond laser pulses in the wavelength range 475–510 nm. The dependences of fluorescence intensity $I_0$, anisotropy $r$, and parameter $\Omega$ on the excitation energy have been determined and analyzed. In particular, a nonmonotonic behavior of $I_0$ indicating the increase of indole excited state density in the excitation energy range above 5.1 eV and the anisotropy sign reversal due to the variation of the symmetry of indole vibronic states have been observed and interpreted theoretically.
Keywords: Circular Polarization, Vibrational Excitation Spectrum, Anisotropic Component, Polarized Laser Beam, Frank-Condon Approximation.
Funding agency Grant number
Russian Science Foundation 14-13-00266
This study was supported by the Russian Science Foundation (project no. 14-13-00266).
Received: 23.01.2018
English version:
Technical Physics, 2018, Volume 63, Issue 9, Pages 1293–1299
DOI: https://doi.org/10.1134/S1063784218090189
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. È. Sasin, V. I. Tushkanov, A. G. Smolin, P. S. Shternin, O. S. Vasutinskii, “Polarized fluorescence in indole under two-photon excitation by femtosecond laser pulses”, Zhurnal Tekhnicheskoi Fiziki, 88:9 (2018), 1336–1343; Tech. Phys., 63:9 (2018), 1293–1299
Citation in format AMSBIB
\Bibitem{SasTusSmo18}
\by M.~\`E.~Sasin, V.~I.~Tushkanov, A.~G.~Smolin, P.~S.~Shternin, O.~S.~Vasutinskii
\paper Polarized fluorescence in indole under two-photon excitation by femtosecond laser pulses
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2018
\vol 88
\issue 9
\pages 1336--1343
\mathnet{http://mi.mathnet.ru/jtf5814}
\crossref{https://doi.org/10.21883/JTF.2018.09.46417.44-18}
\elib{https://elibrary.ru/item.asp?id=36904336}
\transl
\jour Tech. Phys.
\yr 2018
\vol 63
\issue 9
\pages 1293--1299
\crossref{https://doi.org/10.1134/S1063784218090189}
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