• Journal of Inorganic Materials
  • Vol. 38, Issue 3, 350 (2023)
Jiaxue YANG1、2, Wen LI1、3, Yan WANG1、4、*, Zhaojie ZHU1、4, Zhenyu YOU1、4, Jianfu LI1、4, and Chaoyang TU1、4、*
Author Affiliations
  • 11. Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
  • 22. College of Chemistry, Fuzhou University, Fuzhou 350116, China
  • 33. School of Materials Science and Engineering, Fuzhou University, Fuzhou 350116, China
  • 44. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
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    DOI: 10.15541/jim20220386 Cite this Article
    Jiaxue YANG, Wen LI, Yan WANG, Zhaojie ZHU, Zhenyu YOU, Jianfu LI, Chaoyang TU. Spectroscopic and Yellow Laser Features of Dy3+: Y3Al5O12 Single Crystals [J]. Journal of Inorganic Materials, 2023, 38(3): 350 Copy Citation Text show less
    Photos of the as-grown single crystals
    1. Photos of the as-grown single crystals
    Absorption spectra of Dy: YAG crystals
    2. Absorption spectra of Dy: YAG crystals
    Emission spectra of YAG crystals with different Dy3+ concentrations excited by 447 nm (a) and variation of intensity of 582 nm and 4F9/2 level lifetime with Dy3+ concentrations in Dy: YAG crystals (b)
    3. Emission spectra of YAG crystals with different Dy3+ concentrations excited by 447 nm (a) and variation of intensity of 582 nm and 4F9/2 level lifetime with Dy3+ concentrations in Dy: YAG crystals (b)
    Laser spectra (a) and variation of output power with absorbed pump power of 2.0%Dy: YAG crystal (b)
    4. Laser spectra (a) and variation of output power with absorbed pump power of 2.0%Dy: YAG crystal (b)
    Crystalc/% (in atomic) keffNc/cm-3α/cm-1σabs/cm2
    0.5% Dy: YAG0.2390.4783.31×10190.0551.66×10-21
    1.0% Dy: YAG0.4790.4796.61×10190.1031.56×10-21
    2.0% Dy: YAG0.9700.4851.33×10200.2151.61×10-21
    3.0% Dy: YAG1.4270.4751.95×10200.3381.73×10-21
    4.0% Dy: YAG1.9750.4942.69×10200.4301.60×10-21
    Table 1.

    Concentration, effective segregation coefficient and absorption cross-section of Dy3+ in YAG crystal

    6H15/2 λ¯/nm n0.5%Dy: YAG1.0%Dy: YAG2.0%Dy: YAG3.0%Dy: YAG4.0%Dy: YAG
    Sexp/(×10-20, cm2) Scal/(×10-20, cm2) Sexp/(×10-20, cm2) Scal/(×10-20, cm2) Sexp/(×10-20, cm2) Scal/(×10-20, cm2) Sexp/(×10-20, cm2) Scal/(×10-20, cm2) Sexp/(×10-20, cm2) Scal/(×10-20, cm2)
    4M17/2+6P3/2+4G9/2+4I9/23271.890.4470.2980.4600.3200.5260.3230.4980.3270.4670.341
    6P7/2+4I11/23531.880.9050.7231.1280.8501.3711.1821.7191.4541.6481.403
    6P5/2+4M19/23671.870.7330.4740.8060.5110.9070.5250.8980.5400.9180.560
    4K17/2+4M21/2+4I13/2+4F7/23871.860.6510.7290.7230.7930.8010.8540.8510.9080.8730.925
    4I15/24511.850.2570.1780.2530.1910.1870.1910.2130.1920.2270.199
    6F3/27551.820.2170.1580.1890.1700.2020.1710.2250.1730.2050.181
    6F5/28041.821.0830.9091.1400.9751.2660.9831.2520.9961.2281.039
    6F7/29081.822.072.0572.3612.2262.2432.3282.4622.4262.5652.502
    6H7/2+6F9/210881.812.5772.7412.743.0223.2493.4033.4803.7313.5283.767
    RMS/(×10-20, cm2)0.1800.2300.2370.2460.226
    Ωt(t=2, 4, 6)/(×10-20, cm2)Ω2=0.793Ω4=1.284Ω6=2.634Ω2=0.747Ω4=1.520Ω6=2.825Ω2=0.498Ω4=2.155Ω6=2.848Ω2=0.312Ω4=2.674Ω6=2.887Ω2=0.142Ω4=2.573Ω6=3.011
    Table 2.

    Experimental line strength, calculated line strength, and J-O intensity parameters of Dy: YAG crystals

    4F9/22S+1LJ0.5%Dy: YAG1.0%Dy: YAG2.0%Dy: YAG3.0%Dy: YAG4.0%Dy: YAG
    A/s-1β/% A/s-1β/% A/s-1β/% A/s-1β/% A/s-1β/%
    6F1/20.080.010.100.010.140.010.170.020.160.02
    6F3/20.150.020.160.020.160.020.160.020.170.02
    6F5/21.820.201.810.191.540.151.340.131.050.10
    6F7/213.631.4914.261.467.291.538.211.588.181.57
    6H5/24.020.444.580.475.780.586.780.666.670.65
    6H7/2 +6F9/254.735.9659.106.0449.396.7156.137.1955.447.10
    6H9/217.781.9418.841.9315.421.9816.342.0216.131.99
    6H11/243.304.7244.214.5225.934.2624.994.0623.053.85
    6H13/2456.9149.79483.8549.46482.8148.22486.2147.34479.0846.58
    6H15/2325.2335.44351.4435.92365.7936.54379.8036.98392.1638.13
    τr/ms1.0901.0220.9990.9740.972
    Table 3.

    Spontaneous emission transition rate (A) and fluorescence branching ratio (β) of Dy: YAG crystals

    Crystalτr(4F9/2 level)/ms τ(4F9/2 level)/ms σem for yellow emission/(×10-21, cm2) σemτ/(×10-21, cm2∙ms) η/% Ref.
    0.5%Dy: YAG1.0900.8942.362.11082.02This work
    1.0%Dy: YAG1.0220.8232.712.23080.53
    2.0%Dy: YAG0.9990.6882.661.83068.87
    3.0%Dy: YAG0.9740.5712.541.45058.62
    4.0%Dy: YAG0.9720.4712.491.17048.46
    1.0%Dy3+: Gd3Ga3Al2O120.5960.5733.201.83496.14[13]
    3.0%Dy3+: Lu2O30.7560.1127.107.95214.80[14]
    2.0%Dy3+: CeF33.7471.5309.2590.141740.83[17]
    1.0%Dy3+: GdScO30.6500.4594.101.88270.60[34]
    2.0%Dy3+: Gd3Ga5O121.1070.7902.622.07071.40[35]
    2.0%Dy3+: LaF31.7001.3707.009.59080.59[36]
    Table 4.

    Emission property parameters of Dy3+ in YAG and other crystals

    Jiaxue YANG, Wen LI, Yan WANG, Zhaojie ZHU, Zhenyu YOU, Jianfu LI, Chaoyang TU. Spectroscopic and Yellow Laser Features of Dy3+: Y3Al5O12 Single Crystals [J]. Journal of Inorganic Materials, 2023, 38(3): 350
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