Pregled bibliografske jedinice broj: 709093
Photodarkening of Infrared Irradiated Yb3+-Doped Alumino-Silicate Glasses : Effect on UV Absorption Bands and Fluorescence Spectra
Photodarkening of Infrared Irradiated Yb3+-Doped Alumino-Silicate Glasses : Effect on UV Absorption Bands and Fluorescence Spectra // Fibers, 1 (2013), 3; 101-109 doi:10.3390/fib1030101 (međunarodna recenzija, članak, znanstveni)
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Naslov
Photodarkening of Infrared Irradiated Yb3+-Doped Alumino-Silicate Glasses : Effect on UV Absorption Bands and Fluorescence Spectra
Autori
Gebavi, Hrvoje ; Milanese Daniel ; Taccheo, Stefano ; Mechin, David ; Monteville, Achille ; Freyria, S. Francesca ; Bonelli, Barbara ; Robin, Thierry
Izvornik
Fibers (2079-6439) 1
(2013), 3;
101-109
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
photodarkening; Yb-doped fibers; high power lasers
Sažetak
The photodarkening phenomenon in alumino-silicate glass preforms, doped with different ytterbium concentrations, was studied. The UV band, comprised between 180 and 350 nm, was examined before and after irradiation at 976 nm. The non- linear dependence of 240 nm band with concentration after infra-red irradiation was demonstrated and ascribed predominantly to Yb3+ pair’s interaction. The emission spectrum after the excitation in UV spectral region showed increased intensity after photodarkening, probably due to Yb2+ ions creation. Phenomenological photodarkening model and the possible existence of several defect types are presented.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Emerging Sources Citation Index (ESCI)
