Polarized Fluorescence in Indole under Two-Photon Excitation by Femtosecond Laser Pulses
- Авторлар: Sasin M.E.1, Tushkanov V.I.1,2, Smolin A.G.1, Shternin P.S.1, Vasyutinskii O.S.1
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Мекемелер:
- Ioffe Institute, Russian Academy of Sciences
- St. Petersburg Academic University
- Шығарылым: Том 63, № 9 (2018)
- Беттер: 1293-1299
- Бөлім: Physical Approaches and Problems of Data Interpretation in the Life Sciences
- URL: https://journal-vniispk.ru/1063-7842/article/view/201925
- DOI: https://doi.org/10.1134/S1063784218090189
- ID: 201925
Дәйексөз келтіру
Аннотация
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 I0, anisotropy r, and parameter Ω on the excitation energy have been determined and analyzed. In particular, a nonmonotonic behavior of I0 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.
Авторлар туралы
M. Sasin
Ioffe Institute, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: sasin@ffm.ioffe.ru
Ресей, St. Petersburg, 194021
V. Tushkanov
Ioffe Institute, Russian Academy of Sciences; St. Petersburg Academic University
Email: sasin@ffm.ioffe.ru
Ресей, St. Petersburg, 194021; St. Petersburg, 194021
A. Smolin
Ioffe Institute, Russian Academy of Sciences
Email: sasin@ffm.ioffe.ru
Ресей, St. Petersburg, 194021
P. Shternin
Ioffe Institute, Russian Academy of Sciences
Email: sasin@ffm.ioffe.ru
Ресей, St. Petersburg, 194021
O. Vasyutinskii
Ioffe Institute, Russian Academy of Sciences
Email: sasin@ffm.ioffe.ru
Ресей, St. Petersburg, 194021
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