Infrared and Laser Engineering, Volume. 49, Issue 12, 20201067(2020)
Growth, structure, and spectroscopic properties of Yb,Ho,Pr:GYTO single crystal （Invited）
Figures & Tables(12)
Fig. 1. (a) Photograph of the as-grown Yb,Ho,Pr:GYTO crystal; (b) <100>, <010>, and <001>-oriented wafers of Yb,Ho,Pr:GYTO crystal
Fig. 3. Rietveld refinement results from the XRD data of Yb,Ho,Pr:GYTO crystal
Fig. 5. (a) Polarized absorption spectra of Yb,Ho,Pr:GYTO; (b) Comparization of Polarized absorption spectra of Yb,Ho,Pr:GYTO and Yb,Ho:GYTO in 850-1100 nm (
Fig. 7. Fluorescence decay curves. (a) 1204 nm (5I6→5I8); (b) 2068 nm(5I7→5I8)
Fig. 8. Schematic of energy transfer processes among Yb3+, Ho3+, and Pr3+ ions
Table 1. Structural parameters obtained by Rietveld refinement
View tableView in ArticleTable 1. Structural parameters obtained by Rietveld refinement
Atom X Y Z Wyckoff site U isoCell parameters: a =5.381 Å,b =11.023 Å,c =5.076 Å,β =95.59°; Cell volume:V =299.68 Å3; Space group: Monoclinic, I2/a (No.15); Density:ρ =8.630 g/cm3; Reliability factors(R-factor):R p=9.72%,R wp=7.21%Gd 0.25 0.621000 0.0 4 a 0.025 Y 0.25 0.621000 0.0 4 a 0.025 Yb 0.25 0.621000 0.0 4 a 0.025 Ho 0.25 0.621000 0.0 4 a 0.025 Pr 0.25 0.621000 0.0 4 a 0.025 Ta 0.25 0.145000 0.0 4 a 0.025 O1 0.094000 0.460000 0.254000 8 c 0.025 O2 −0.00700 0.717000 0.293000 8 c 0.025
Table 2. Effective segregation coefficients (keff) of Yb, Ho, Pr, and Y in Yb,Ho,Pr:GYTO crystal
View tableView in ArticleTable 2. Effective segregation coefficients (keff) of Yb, Ho, Pr, and Y in Yb,Ho,Pr:GYTO crystal
Element Starting material (at %) Crystal (at %) k eff (Cs /C 0)Yb 0.05 0.0312 0.624 Ho 0.01 0.0122 1.220 Pr 0.002 0.0027 1.350 Y 0.2 0.1953 0.977
Table 3. Comparison of the emission cross section for 2.9 μm in the different Ho3+ doped crystals
View tableView in ArticleTable 3. Comparison of the emission cross section for 2.9 μm in the different Ho3+ doped crystals
Crystals Emission cross section (10−20 cm2) Yb,Ho,Pr:GYTO (this work) 14.4 Ho:GYTO[ 25 ]12.6 Yb,Ho:GYTO[ 27 ]18.9 Ho:LaF3[ 29 ]0.63 Ho:LuLF[ 30 ]1.7 Ho:PbF2[ 31 ]1.44
Table 4. Comparison of the lifetimes of 5I7 and 5I6 in different crystals
View tableView in ArticleTable 4. Comparison of the lifetimes of 5I7 and 5I6 in different crystals
Crystal Ho (5I7)/ms Ho (5I6)/ μs Yb,Ho:YSGG[ [32] ]10.2 585 Tm,Ho:YAG[ [33] ]11.4 40 Yb,Ho,Pr:YAP[ [24] ]1.258 341 Ho:GYTO[ [25] ]8.081 311 Tm,Ho:GYTO[ [26] ]4.09 131 Yb,Ho,Pr:GYTO (this work) 0.939 376
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Yi He, Renqin Dou, Haotian Zhang, Wenpeng Liu, Qingli Zhang, Yingying Chen, Yuxi Gao, Jianqiao Luo. Growth, structure, and spectroscopic properties of Yb,Ho,Pr:GYTO single crystal （Invited）[J]. Infrared and Laser Engineering, 2020, 49(12): 20201067
Paper Information
Category: Laser Material & Optoelectronic Devices
Received: Oct. 20, 2020
Accepted: --
Published Online: Jan. 14, 2021
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