Abstract
With the use of highly polarized synchrotron radiation the absorption, reflection and luminescence spectra of a rated pure corundum single crystal irradiated with 50 MeV electrons are measured in the vacuum ultra-violet region. A strong anisotropy of the absorption optical bands according to orientation of the electric vector E to the optical axis C{sub 3} is observed. Electron irradiation leads to formation of the F{sup +} centre (the 6.3 and 7 eV bands), displacement of the exciton peak maximum, and an anisotropy of high-energy bands in the reflection spectra. Using the Kramers-Kronig analysis the spectra of optical functions are obtained for unirradiated corundum crystals. 19 refs.; 8 figs.
Citation Formats
Arutyunyan, V V, Gevorkyan, V A, Grigoryan, N E, and Eritsyan, G N.
Electron irradiation effect on the band structure of {alpha}-Al{sub 2}O{sub 3} single crystal; Vliyanie ehlektronnogo oblucheniya na zonnuyu strukturu monokristalla al`fa-Al{sub 2}O{sub 3}.
USSR: N. p.,
1989.
Web.
Arutyunyan, V V, Gevorkyan, V A, Grigoryan, N E, & Eritsyan, G N.
Electron irradiation effect on the band structure of {alpha}-Al{sub 2}O{sub 3} single crystal; Vliyanie ehlektronnogo oblucheniya na zonnuyu strukturu monokristalla al`fa-Al{sub 2}O{sub 3}.
USSR.
Arutyunyan, V V, Gevorkyan, V A, Grigoryan, N E, and Eritsyan, G N.
1989.
"Electron irradiation effect on the band structure of {alpha}-Al{sub 2}O{sub 3} single crystal; Vliyanie ehlektronnogo oblucheniya na zonnuyu strukturu monokristalla al`fa-Al{sub 2}O{sub 3}."
USSR.
@misc{etde_10118621,
title = {Electron irradiation effect on the band structure of {alpha}-Al{sub 2}O{sub 3} single crystal; Vliyanie ehlektronnogo oblucheniya na zonnuyu strukturu monokristalla al`fa-Al{sub 2}O{sub 3}}
author = {Arutyunyan, V V, Gevorkyan, V A, Grigoryan, N E, and Eritsyan, G N}
abstractNote = {With the use of highly polarized synchrotron radiation the absorption, reflection and luminescence spectra of a rated pure corundum single crystal irradiated with 50 MeV electrons are measured in the vacuum ultra-violet region. A strong anisotropy of the absorption optical bands according to orientation of the electric vector E to the optical axis C{sub 3} is observed. Electron irradiation leads to formation of the F{sup +} centre (the 6.3 and 7 eV bands), displacement of the exciton peak maximum, and an anisotropy of high-energy bands in the reflection spectra. Using the Kramers-Kronig analysis the spectra of optical functions are obtained for unirradiated corundum crystals. 19 refs.; 8 figs.}
place = {USSR}
year = {1989}
month = {Dec}
}
title = {Electron irradiation effect on the band structure of {alpha}-Al{sub 2}O{sub 3} single crystal; Vliyanie ehlektronnogo oblucheniya na zonnuyu strukturu monokristalla al`fa-Al{sub 2}O{sub 3}}
author = {Arutyunyan, V V, Gevorkyan, V A, Grigoryan, N E, and Eritsyan, G N}
abstractNote = {With the use of highly polarized synchrotron radiation the absorption, reflection and luminescence spectra of a rated pure corundum single crystal irradiated with 50 MeV electrons are measured in the vacuum ultra-violet region. A strong anisotropy of the absorption optical bands according to orientation of the electric vector E to the optical axis C{sub 3} is observed. Electron irradiation leads to formation of the F{sup +} centre (the 6.3 and 7 eV bands), displacement of the exciton peak maximum, and an anisotropy of high-energy bands in the reflection spectra. Using the Kramers-Kronig analysis the spectra of optical functions are obtained for unirradiated corundum crystals. 19 refs.; 8 figs.}
place = {USSR}
year = {1989}
month = {Dec}
}