Growth and properties of (Cr3+, Nd3+) doped GdCa4O(BO3)3 crystals

被引:15
作者
Zhang, SJ [1 ]
Cheng, ZX
Zhou, GY
Sun, YM
Hou, XY
Liu, XS
Han, JR
Shao, ZS
Chen, HC
机构
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Shandong Univ, Dept Opt, Jinan 250100, Peoples R China
[3] Shandong Univ, Coretech Crystal Co, Jinan 250100, Peoples R China
关键词
D O I
10.1016/S0960-8974(00)00022-X
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Optical quality Nd:GdCa4O(BO3)(3) (Nd:GdCOB) crystal and chromium sensitized crystal of Cr:Nd:GdCa4O(BO3)(3) (Cr:Nd:GdCOB) were grown by the Czochralski (CZ) method. The transmittance spectra was measured at room temperature on 7at%Nd:GdCOB and lat%Cr:7at%Nd:GdCOB samples. The absorption in the blue-UV region of Cr:Nd:GdCOB was larger than that of Nd:GdCOB, which matched the xenon flash lamp very well. A 3x3x10mm(3) Nd:GdCOB sample without any antireflective coating was side-pumped using a pulsed dye-laser tuned to 595.4nm. The green-light output energy was 1.35mJ at a pump energy of 17.5mJ. The conversion efficiency was 7.7%, and the threshold energy was less than 1.2mJ which are the best results up to now to our knowledge. 3x3x7mm(3) Nd:GdCOB and Cr:Nd:GdCOB samples without antireflective coatings were pumped using a flash pump source. The threshold for Cr:Nd:GdCOB was 0.9J while for Nd:GdCOB it was 1.0J. The output green light energy was 2.46mJ for Cr:Nd:GdCOB at a 10J flash pump energy and was 1.96mJ for Nd:GdCOB at the same pump energy, which clearly shows that Cr3+ ions have the sensitizing effect on the Nd3+ ions in Nd:GdCOB crystal.
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页码:81 / 88
页数:8
相关论文
共 8 条
  • [1] Linear- and nonlinear-optical properties of a new gadolinium calcium oxoborate crystal, Ca4GdO(BO3)(3)
    Aka, G
    KahnHarari, A
    Mougel, F
    Vivien, D
    Salin, F
    Coquelin, P
    Colin, P
    Pelenc, D
    Damelet, JP
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1997, 14 (09) : 2238 - 2247
  • [2] AKA G, 1996, J SOLID STATE INORG, V38, P727
  • [3] CHAI BHT, 1998, ADV SOLID STATE LASE
  • [4] Iwai M., 1997, JPN J APPL PHYS, V36, P1276
  • [5] MARTOU D, 1998, ADV SOLID STATE LASE
  • [6] Infrared laser performance and self-frequency doubling of Nd3+:Ca4GdO(BO3) (3)(Nd:GdCOB)
    Mougel, F
    Aka, G
    KahnHarari, A
    Hubert, H
    Benitez, JM
    Vivien, D
    [J]. OPTICAL MATERIALS, 1997, 8 (03) : 161 - 173
  • [7] STRUCTURAL INVESTIGATIONS OF NEW CALCIUM RARE-EARTH (R) OXYBORATES WITH THE COMPOSITION CA4RO(BO3)3
    NORRESTAM, R
    NYGREN, M
    BOVIN, JO
    [J]. CHEMISTRY OF MATERIALS, 1992, 4 (03) : 737 - 743
  • [8] Crystal growth of YCa4O(BO3)3 and its orientation
    Ye, Q
    Chai, BHT
    [J]. JOURNAL OF CRYSTAL GROWTH, 1999, 197 (1-2) : 228 - 235