Transient optical absorption in calcium fluoride crystals; Radiation Physics and Chemistry; Vol. 191

Transient optical absorption in calcium fluoride crystals; Radiation Physics and Chemistry; Vol. 191

Podrobná bibliografie
Parent link:Radiation Physics and Chemistry
Vol. 191.— 2022.— [109889, 7 p.]
Korporativní autor: Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Další autoři: Stepanov S. A. Sergey Aleksandrovich, Chinkov E. P. Evgeny Petrovich, Shrayber A. M. Anastasiya Mikhaylovna, Shtanko (Shtan'ko) V. F. Viktor Fedorovich
Shrnutí:Title screen
We report time-resolved measurements of transient optical absorption and emission in nominally pure CaF2 crystal. For excitation we used a pulse of accelerated electrons. It was shown that irradiation leads to the formation of centers of induced absorption, which are deconvoluted by the set of Gaussian bands with maxima at 2.70, 2.91, 3.09, 3.30 eV (F centers) and 3.825, 4.03, 4.30, 4.83 eV (H centers). Four possible geometries of the STE in the fluorite lattice are shown. Assumptions are made about the conversion of configurations.
Режим доступа: по договору с организацией-держателем ресурса
Jazyk:angličtina
Vydáno: 2022
Témata:
электронный ресурс
труды учёных ТПУ
CaF2 crystals
self-trapped excitons
transient optical absorption
F-H pairs
кристаллы
экситоны
оптическое поглощение
фторид кальция
On-line přístup:https://doi.org/10.1016/j.radphyschem.2021.109889
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666722

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