Optical spectroscopy and energy transfer in Tm3+ - Ho3+ ions system in LiY0.3Lu0.7F4 mixed crystals

被引：0

作者：

Minnebaev, T. M. ^{[1
]}

Shavelev, A. A. ^{[1
]}

Shakirov, A. A. ^{[1
]}

Astrakhantseva, A. V. ^{[1
]}

Pudovkin, M. S. ^{[1
]}

Nizamutdinov, A. S. ^{[1
]}

Semashko, V. V. ^{[1
,2
]}

机构：

[1] Kazan Fed Univ, Kazan 420008, Russia

[2] Kazan Sci Ctr RAS, Kazan, Russia

来源：

OPTICAL MATERIALS | 2024年 / 156卷

关键词：

TEMPERATURE-DEPENDENCE; LASER; LUMINESCENCE; PARAMETERS; MANIFOLDS;

D O I：

10.1016/j.optmat.2024.116025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Here we present the study of spectral and kinetic characteristics of Tm3+ and Ho3+ ions system in LiY0.3Lu0.7F4 mixed crystal. Polarized spectra of absorption and luminescence transitions between F-3(4) - H-3(6) and I-5(7) - I-5(8) states of Tm3+ and Ho3+ ions respectively as well as energy transfer efficiency were investigated. It was shown that LiY0.3Lu0.7F4 mixed crystal provides some broadening of Tm3+ and Ho3+ spectral lines for 4f-4f intermultiplet transitions. The evaluated F & ouml;rster energy transfer critical radius for LiY0.3Lu0.7F4: Tm3++Ho3+ (10 at. % + 2 at. %) crystal was 22 & Aring;. The backtransfer efficiency from Ho3+ to Tm3+ in the described energy transfer process CHo-Tm results in value of 0.83 x 10(-40) cm(6)/s and relation of froward and back-transfer coefficients CTm-Ho/CHo-Tm appears to be 6.8 calculated from our spectroscopic data, which make it prospective active medium for sensitized laser oscillation in IR spectral region.

引用

页数：6

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