Single Crystals of YAlO3:Er for 1.6 μm Spectral Range Lasers

Single Crystals of YAlO3:Er for 1.6 μm Spectral Range Lasers

Single crystals of YAlO 3 -Er (YAP:Er) are grown by the Bridgman method from melts with different Y/Al ratio. The structural defects and color centers are compared for Y/Al = 1 and Y/Al > 1, as well as formed in the processes of gamma-irradiation and thermal treatment. Based on the obtained data,...

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Veröffentlicht in:Journal of contemporary physics 2023-09, Vol.58 (3), p.238-244
Hauptverfasser: Derdzyan, M. V., Hovhannesyan, K. L., Yeganyan, A. V., Ghambaryan, I., Badalyan, G., Gorbachenya, K. N., Kisel, V. E., Kuleshov, N. V., Petrosyan, A. G.
Format: Artikel
Sprache:eng
Schlagworte:
Bridgman method
Color centers
Crystal defects
Crystal growth
Erbium
Gamma irradiation
Heat treatment
Luminescence
Optical properties
Particle and Nuclear Physics
Physics
Physics and Astronomy
Polarized light
Single crystals
Yttrium
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Zusammenfassung:Single crystals of YAlO 3 -Er (YAP:Er) are grown by the Bridgman method from melts with different Y/Al ratio. The structural defects and color centers are compared for Y/Al = 1 and Y/Al > 1, as well as formed in the processes of gamma-irradiation and thermal treatment. Based on the obtained data, the growth conditions of YAP:Er crystals free of color centers and twins are determined. Spectral-luminescent properties of crystals are investigated: the absorption and luminescent spectra are registered in the polarized light, the luminescence kinetics is investigated and the lifetime of the 4 I 13/2 level of Er 3+ ion is determined.
ISSN:1068-3372
1934-9378
DOI:10.1134/S1068337223030088