Synthesis, spectroscopic characterization and laser operation of Ho3+ in "mixed" (Lu,Sc)2O3 ceramics

被引：24
作者：
Jing, Wei [1 ]
Loiko, Pavel [2 ]
Maria Serres, Josep [3 ]
Wang, Yicheng [4 ]
Kifle, Esrom [3 ]
Vilejshikova, Elena [5 ]
Aguilo, Magdalena [3 ]
Diaz, Francesc [3 ]
Griebner, Uwe [4 ]
Huang, Hui [1 ]
Petrov, Valentin [4 ]
Mateos, Xavier [3 ]
机构：
[1] China Acad Engn Phys, Inst Chem Mat, 64 Mianshan Rd, Mianyang 621900, Peoples R China
[2] ITMO Univ, 49 Kronverkskiy Pr, St Petersburg 197101, Russia
[3] Univ Rovira & Virgili, Dept Quim Fis & Inorgan Fis & Cristallog Mat & Na, Campus Sescdades, E-43007 Tarragona, Spain
[4] Max Born Inst Nonlinear Opt & Short Pulse Spect, Max Born Str 2a, D-12489 Berlin, Germany
[5] Belarusian Natl Tech Univ, COMT, 65-17 Nezavisimosti Ave, Minsk 220013, BELARUS
来源：
JOURNAL OF LUMINESCENCE | 2018年 / 203卷
关键词：
Transparent ceramics; Sesquioxides; Holmium; Spectroscopy; Laser operation; MICROCHIP LASER; DOPED LU2O3; PARAMETERS; IONS; OSCILLATION; INTENSITIES; 2.1-MU-M; Y2O3; ND3+; ER3+;
D O I：
10.1016/j.jlumin.2018.06.043
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Novel transparent Ho-doped sesquioxide ceramics are synthesized by high-temperature vacuum sintering and hot isostatic pressing. The spectroscopic properties of 1.4 at% and 3 at% Ho:(Lu,Sc)(2)O-3 ceramics are studied within Judd-Ofelt theory, yielding the intensity parameters Omega(2) = 7.863, Omega(4) = 1.843 and Omega(6) = 0.531 [10-20 cm(2)]. The radiative lifetime of the I-5(7) state is 10.63 ms. Absorption, stimulated-emission and gain cross-sections for the I-5(7) -> I-5(8) Ho3+ transition are calculated. At > 2 mu m, the maximum sigma(SE) = 3.41x10(-21) cm(2) at 2.101 mu m. Under GaSb diode-pumping at 1.929 mu m, the 1.4 at% Ho:(Lu,Sc)(2)O-3 ceramic laser generated 187 mW of quasicontinuous wave (CW) output at 2.114-2.135 mu m with a slope efficiency eta of 7.6%. When pumped at 1.946 mu m with a Tm laser, eta reached 25% while the CW output power was 20.5 mW. The Ho:(Lu,Sc)(2)O-3 ceramics are promising for broadband tunable and ultrashort pulse laser operation at similar to 2.1 mu m.
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收藏
页码：145 / 151
页数：7
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