Acta Physica Sinica, Volume. 69, Issue 9, 094202-1(2020)
Figures & Tables(10)
Fig. 2. Matching curve of crystals and solar spectrum: (a) Tm:YAG; (b) Tm:YAP.
Fig. 4. (a) Two-stage pumping model; (b) structure diagram of conical cavity.
Fig. 5. Curve of the relationship between the position of conical cavity and the received solar power.
Fig. 6. Distribution map of side pump power on 100 mm-length crystal rod.
Fig. 7. Axial irradiance distribution of different-length crystals.
Fig. 8. Axial irradiance distribution of different-taper crystals.
Table 1.
Spectral matching analysis results of crystals.
晶体光谱匹配分析结果
View tableView in ArticleTable 1.
Spectral matching analysis results of crystals.
晶体光谱匹配分析结果
Active medium Doping density/cm3 Absorption band/nm Irradiance in absorption band/W·m–2 Percentage of solar radiance/% Tm:YAG 1.261×1020(1 at.%) 360—410 21.91041 22.9 456—480 38.78578 656—720 84.80076 747—812 69.35269 Tm:YAP 1.965×1020(1 at.%) 360—394 19.52938 29.8 450—494 68.23487 643—726 108.88686 744—836 95.81626
Table 2. [in Chinese]
View tableView in ArticleTable 2. [in Chinese]
Tm:YAG Tm:YAP Doping density/cm3 1.26×1020 (1 at.%) 1.965×1020 (1 at.%) Upper level lifetime/ms 10.5 4.4 Boltzmann factor in upper level 0.46 0.29 Boltzmann factor in lower level 0.017 0.015 Emission cross section/cm2 2.5×10–21 3.81×10–21 Quantum efficiency 1.8 1.9 Calculation results of absorption coefficient curve: $\sum\nolimits_i { {\eta _i}\overline { {a_i} } {\lambda _i} } $ 46.0069×10–7 51.5739×10–7 Refractive index 1.82 1.91
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Xue-Tong Lin, Su-Hui Yang, Xin Wang, Zhuo Li, Jin-Ying Zhang.
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Received: Dec. 27, 2019
Accepted: --
Published Online: Nov. 26, 2020
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