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Effects of Gd3+/Y3+ codoping on the spectral properties of Nd:CaF2 crystals

Liu Jian Liu Jun-Fang Su Liang-Bi Zhang Qian Ma Feng-Kai Jiang Da-Peng Xu Jun

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Effects of Gd3+/Y3+ codoping on the spectral properties of Nd:CaF2 crystals

Liu Jian, Liu Jun-Fang, Su Liang-Bi, Zhang Qian, Ma Feng-Kai, Jiang Da-Peng, Xu Jun
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  • In the last few years, Nd3+ doped fluoride crystals have achieved some amazing laser performances by codoping buffer ions such as Y3+ and Gd3+ ions, which lead to the changing of local structure of Nd3+ ions. In this work, effects of doping concentration of Gd3+ and Y3+ ions on optical properties are discussed. The relationships between spectroscopic properties and the unit cells are also discussed. Nd, Y:CaF2 and Nd, Gd:CaF2 disordered crystals are grown by using temperature gradient technique (TGT). Among 0.5 at.%Nd, x at.%Gd(x=2, 5, 8, 10):CaF2 crystals, the crystal with Gd3+ of 2 at.% has the longest fluorescence lifetime (499 s). Increasing the concentration of Gd3+ up to 5 at.%, the crystal has a maximum absorption cross section of 1.910-20 cm2, and a maximum emission cross section of 1.910-20cm2. The crystal with Gd3+ of 8 at.%has a maximum emission bandwidth of 29.03 nm(FWHM). Among 0.6 at.%Nd, x at.%Y(x=2, 5, 8, 10):CaF2 crystal, the crystal with Y3+ of 5 at.%has the biggest absorption cross section (2.4110-20 cm2), and the biggest emission cross section (3.1710-20 cm2), when the concentration of Y3+ is 5 at.%. When the Y3+ concentration increases up to 10 at.%, the crystal has a longest fluorescence lifetime of 359.4 s and maximal emission bandwidth of 26 nm(FWHM).The different concentrations of codoping ions have different effects on the Nd:CaF2 crystals, for the formations of different optical centers. In order to study the effects of local structure around Nd3+ on the optical properties in a set of Nd:CaF2 single crystals with different codoping concentrations of Gd3+ and Y3+, the unit cell parameters are investigated by X-ray diffraction. With different concentrations of Gd3+ and Y3+ ions in Nd:CaF2 crystal, the local structure of Nd3+ changes, which leads to different optical properties. The relevant details will further be explained in this paper.
      Corresponding author: Liu Jun-Fang, ljf@tongji.edu.cn;su_lb@163.com ; Su Liang-Bi, ljf@tongji.edu.cn;su_lb@163.com
    • Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 61178056, 61422511, 61008045) and the Key Laboratory of Advanced Technology for Materials Synthesis and Processing (Wuhan University of Technology), China (Grant No. 2015-KF-10).
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    Kaiser W, Garrett C G B, Wood D L 1961 Phys. Rev. 123 766

    [3]

    Dannecker B, Délen X Wentsch K S, Weichelt B, Hönninger C, Voss A, Ahmed M A, Graf T 2014 Opt. Express 22 22278

    [4]

    Aballea P, Suganuma A, Druon F, Hostalrich J, Georges P, Gredin P Mortiner M 2015 Opt. Lett. 2 288

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    Stephen A P, John A C, Chase L L, Smith L K, Nielsen N D, William F. K 1991 J. Opt. Soc. Am. B 8 726

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    Kaminskii A A, Osico V V, Prokhorov A M, Voronko Y K 1966 Phys. Lett. 22 419

    [7]

    Kaminskii A A, Zhmurwa Z I, Lomonov V A, Sarkisov S E 1984 Phys. St at. Sol. 84 81

    [8]

    Kaminskii A A, Verdún H R 1992 Sov. J. Quantum Electron. 22 95

    [9]

    Bagdasarov K S, Voronko Y K, Kaminskii A A 1968 Kristallografiya. 10 746

    [10]

    Kaminskii A A 1967 Phys. St at. Sol. 20 51

    [11]

    Kaminskii A A, Agamalyan N R, Deniseneo G A, Sarkisov S E, Fedorov P P 1982 Phys. St at. Sol. 70 397

    [12]

    Kaminskii A A 1967 JETP Lett. 6 115

    [13]

    Qin Z P, Xie G Q, Ma J, Ge W Y, Yuan P, Qian L J, Su L B, Jiang D P, Ma, F K, Zhang Q, Cao Y X, Xu J 2014 Opt. Lett. 39 1737

    [14]

    Li C, Zhang F, Liu J, Su L B, Jiang D P, Liu J, Liu J F, Xu J 2015 Opt.Mater.Express 5 1972

    [15]

    Jiang D P, Zhan Y Y, Zhang Q, Ma F K, Su L B, Tang F, Qian X B, Xu J 2015 Crystengcomm. 17 7398

    [16]

    Ma F K, Zhang Q, Jiang D P, Su L B, Shao Y J, Tang F, Xu J, Solarz P, Ryba-Romanowski W, Lisiecki R, Macalik B 2014 Laser Phys. 24 105703

  • [1]

    Sorokin P P, Stevenson M J 1960 Phys. Rev. Lett. 5 557

    [2]

    Kaiser W, Garrett C G B, Wood D L 1961 Phys. Rev. 123 766

    [3]

    Dannecker B, Délen X Wentsch K S, Weichelt B, Hönninger C, Voss A, Ahmed M A, Graf T 2014 Opt. Express 22 22278

    [4]

    Aballea P, Suganuma A, Druon F, Hostalrich J, Georges P, Gredin P Mortiner M 2015 Opt. Lett. 2 288

    [5]

    Stephen A P, John A C, Chase L L, Smith L K, Nielsen N D, William F. K 1991 J. Opt. Soc. Am. B 8 726

    [6]

    Kaminskii A A, Osico V V, Prokhorov A M, Voronko Y K 1966 Phys. Lett. 22 419

    [7]

    Kaminskii A A, Zhmurwa Z I, Lomonov V A, Sarkisov S E 1984 Phys. St at. Sol. 84 81

    [8]

    Kaminskii A A, Verdún H R 1992 Sov. J. Quantum Electron. 22 95

    [9]

    Bagdasarov K S, Voronko Y K, Kaminskii A A 1968 Kristallografiya. 10 746

    [10]

    Kaminskii A A 1967 Phys. St at. Sol. 20 51

    [11]

    Kaminskii A A, Agamalyan N R, Deniseneo G A, Sarkisov S E, Fedorov P P 1982 Phys. St at. Sol. 70 397

    [12]

    Kaminskii A A 1967 JETP Lett. 6 115

    [13]

    Qin Z P, Xie G Q, Ma J, Ge W Y, Yuan P, Qian L J, Su L B, Jiang D P, Ma, F K, Zhang Q, Cao Y X, Xu J 2014 Opt. Lett. 39 1737

    [14]

    Li C, Zhang F, Liu J, Su L B, Jiang D P, Liu J, Liu J F, Xu J 2015 Opt.Mater.Express 5 1972

    [15]

    Jiang D P, Zhan Y Y, Zhang Q, Ma F K, Su L B, Tang F, Qian X B, Xu J 2015 Crystengcomm. 17 7398

    [16]

    Ma F K, Zhang Q, Jiang D P, Su L B, Shao Y J, Tang F, Xu J, Solarz P, Ryba-Romanowski W, Lisiecki R, Macalik B 2014 Laser Phys. 24 105703

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Publishing process
  • Received Date:  24 September 2015
  • Accepted Date:  11 November 2015
  • Published Online:  05 March 2016

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