[1] A IKESUE, L AUNG Y. Ceramic laser materials. Nature Photonics, 2, 721-727(2018).

[2] A KAMINSKII A. Laser crystals and ceramics: recent advances. Laser & Photonics Reviews, 1, 93-177(2007).

[3] T TAIRA. RE³+-ion-doped YAG ceramic lasers. IEEE Journal of Selected Topics in Quantum Electronics, 13, 798-809(2007).

[4] T TAO X, P WANG S, L WANG et al. Research in crystal materials: from bulk crystals to micro-nano crystals. Journal of Synthetic Crystals,, 48, 765-785(2019).

[5] N LI, B LIU, J SHI J et al. Research progress of rare-earth doped laser crystals in visible region. Journal of Inorganic Materials, 34, 573-589(2019).

[6] B GRUBER J, K SARDAR D, M YOW R et al. Energy-level structure and spectral analysis of Nd³⁺ (4f³) in polycrystalline ceramic garnet Y₃Al₅O₁₂. Journal of Applied Physics, 96, 3050-3056(2004).

[7] H LI J, H LIU X, B WU J et al. High-power diode-pumped Nd:Lu₂O₃ crystal continuouswave thin-disk laser at 1359 nm. Laser Physics Letters, 9, 195-198(2012).

[8] M JU, Y XIAO, M ZHONG M et al. New theoretical insights into the crystal-field splitting and transition mechanism for Nd³+-doped Y₃Al₅O₁₂. ACS Applied Materials & Interfaces, 11, 10745-10750(2019).

[9] V BRUNN P, M HEUER A, L FORNASIERO et al. Efficient laser operation of Nd³+:Lu₂O₃ at various wavelengths between 917 nm and 1463 nm. Laser Physics, 26, 084003(2016).

[10] Z HAO L, K WU, J CONG H et al. Spectroscopy and laser performance of Nd:Lu₂O₃ crystal. Optics Express, 19, 17774-17779(2011).

[11] G XUE X, F ZHANG, Q ZHAO H. Influence of the Nd:YAG laser-induced color center absorption on 1064 nm laser output power. Journal of Synthetic Crystals, 47, 1083-1088(2018).

[12] N PAVEL. Simultaneous dual-wavelength emission at 0.90 and 1.06 µm in Nd-doped laser crystals. Laser Physics, 20, 215-221(2010).

[13] B HUANG, Q YI, L YANG L et al. Dual-wavelength nanosecond Nd:YVO₄ laser with switchable inhomogeneous polarization output. IEEE Journal of Selected Topics in Quantum Electronics, 24, 1-5(2018).

[14] Y PANG S, B QIAN X, H WU Q et al. Structure and spectral property of Sc doped Nd:CaF₂ laser crystals. Journal of Inorganic Materials, 33, 873-876(2018).

[15] B DANAILOV M, Y MILEV I. Simultaneous multiwavelength operation of Nd:YAG laser. Applied Physics Letters, 61, 746-748(1992).

[16] Q WANG Q, Y SHI, G FENG Y et al. Li J. Spectral characteristics and laser parameters of solar pumped Cr,Nd:YAG transparent ceramics. Chinese Journal of Luminescence, 40, 1365-1372(2019).

[17] J SANGHERA, W KIM, G VILLALOBOS et al. Ceramic laser materials: past and present. Optical Materials, 35, 693-699(2013).

[18] M SPRINGER R, E THOMAS M. Analysis and comparison of single crystal and polycrystalline Nd:YAG, absorption. IEEE Journal of Quantum Electronics, 49, 667-676(2013).

[19] M WANG H, Y HUANG Z, Q QI J et al. A new methodology to obtain the fracture toughness of YAG transparent ceramics. Journal of Advanced Ceramics, 8, 418-426(2019).

[20] A LAPUCCI, M VANNINI, M CIOFINI et al. Design and Characterization of Yb and Nd Doped Transparent Ceramics for High Power Laser Applications: Recent Advancements. XXI International Symposium on High Power Laser Systems and Applications,Gmunden,Austria, 10254, 102540E(2016).

[21] L GARREC B, V CARDINALI, G BOURDET. Thermo-optical Measurements of Ytterbium Doped Ceramics (Sc₂O₃, Y₂O₃, Lu₂O₃, YAG) and Crystals (YAG, CaF₂) at Cryogenic Temperatures. High-power, High-energy, and High-intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers, 8780, 87800E(2013).

[22] Q LIU, B LI J, W DAI J et al. Fabrication, microstructure and spectroscopic properties of Yb:Lu₂O₃ transparent ceramics from co-precipitated nanopowders. Ceramics International, 44, 11635-11643(2018).

[23] F DAI Z, Q LIU, G TOCI et al. Fabrication and laser oscillation of Yb:Sc₂O₃ transparent ceramics from co-precipitated nano-powders. Journal of the European Ceramic Society, 38, 1632-1638(2018).

[24] J BALLATO, C MCMILLEN, B KOKUOZ et al. The Synthesis and Properties of Rare Earth Doped Yttria and Scandia for Eye-safe Single Crystal and Ceramic Lasers. Solid State Lasers XVII: Technology and Devices, California,. United States, 6871, 68711G(2008).

[25] M WALSH B, M MCMAHON J, C EDWARDS W et al. Spectroscopic characterization of Nd:Y₂O₃: application toward a differential absorption lidar system for remote sensing of ozone. JOSA B, 19, 2893-2903(2002).

[26] D MCMILLEN C, D SANJEEWA L, A MOORE C. Crystal growth and phase stability of Ln:Lu₂O₃(Ln=Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb) in a higher-temperature hydrothermal regime. Journal of Crystal Growth, 452, 146-150(2016).

[27] S SINGH, G SMITH R, G VAN UITERT L. Stimulated-emission cross section and fluorescent quantum efficiency of Nd³+ in yttrium aluminum garnet at room temperature. Physical Review B, 10, 2566(1974).

[28] L WANG B, H YU H, H ZHANG et al. Topological insulator simultaneously Q-switched dual-wavelength Nd:Lu₂O₃ laser. IEEE Photonics Journal, 6, 1-7(2014).

[29] J LI, B PAN Y, P ZENG Y et al. The history, development, and future prospects for laser ceramics: a review. International Journal of Refractory Metals and Hard Materials, 39, 44-52(2013).

[30] R BOULESTEIX, R EPHERRE, S NOYAU et al. Highly transparent Nd:Lu₂O₃ ceramics obtained by coupling slip-casting and spark plasma sintering. Scripta Materialia, 75, 54-57(2014).

[31] J LU, K TAKAICHI, T UEMATSU. Promising ceramic laser material: Highly transparent Nd³+:Lu₂O₃ ceramic. Applied Physics Letters, 81, 4324-4326(2002).

[32] W XU C, D YANG C, H ZHANG et al. Efficient laser operation based on transparent Nd:Lu₂O₃ ceramic fabricated by spark plasma sintering. Optics Express, 24, 20571-20579(2016).

[33] G ALOMBERT-GOGET, Y GUYOT, M GUZIK et al. Nd³+-doped Lu₂O₃ transparent sesquioxide ceramics elaborated by the Spark Plasma Sintering (SPS) method. Part 1: Structural, thermal conductivity and spectroscopic characterization. Optical Materials, 41, 3-11(2015).

[34] G TOCI, M VANNINI, M CIOFINI et al. Nd³+-doped Lu₂O₃ transparent sesquioxide ceramics elaborated by the Spark Plasma Sintering (SPS) method. Part 2: First laser output results and comparison with Nd³+-doped Lu₂O₃ and Nd³+-Y₂O₃ ceramics elaborated by a conventional method. Optical Materials,, 41, 12-16(2015).

[35] H LEE S, R KUPP E, J STEVENSON A et al. Hot isostatic pressing of transparent Nd:YAG ceramics. Journal of the American Ceramic Society, 92, 1456-1463(2009).

[36] Y LIU Z, G TOCI, A PIRRI et al. Fabrication and laser operation of Yb:Lu₂O₃ transparent ceramics from co-precipitated nano-powders. Journal of the American Ceramic Society, 102, 7491-7499(2019).

[37] L PATTERSON A. The Scherrer formula for X-ray particle size determination. Physical Review, 56, 978(1939).

[38] A KAMINSKII A, S AKCHURIN M, P BECKER et al. Mechanical and optical properties of Lu₂O₃ host-ceramics for Ln³+ lasants. Laser Physics Letters, 5, 300-303(2007).

[39] G FENG Y, G TOCI, A PIRRI et al. Fabrication, microstructure, and optical properties of Yb:Y₃ScAl₄O₁₂ transparent ceramics with different doping levels. Journal of the American Ceramic Society, 103, 224-234(2020).