Chinese Journal of Lasers, Volume. 44, Issue 10, 1003001(2017)

Luminescence Properties of Ce∶YAG Single Crystals and Ceramics Under Laser Excitation

Jin Yashuo1,2、*, Guo Xiangchao1, Cao Dunhua3, Zhang Hanliang4, Zhang Guodong1,2, and Li Haibing1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • 4[in Chinese]
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    Yttrium aluminium garnet (YAG) single crystals and ceramics with different Ce3+-doping concentrations (mole fraction) are prepared. The luminous flux, photoelectric conversion efficiency, color rendering index, and color temperature of Ce∶YAG single crystals and ceramics under laser excitation are also analyzed. Under the excitation of the laser with a current of 2.6 A, the luminous flux of ceramics with a Ce3+-doping concentration of 0.3% is the highest at 617.2 lm. The single crystals with a Ce3+-doping concentration of 0.5% have a high color rendering index of 62 and a color temperature of 5841 K. Under the excitation of the laser with a power of 2.61 W and a power density of 10.8 W·mm-2 at the material center, the optical conversions of Ce∶YAG single crystals and ceramics are both unsaturated and the corresponding optical-to-optical conversion efficiencies are both about 240 lm·W-1. The experimental results show that the ceramics and single crystals are suited to produce high brightness white light under high power density laser excitation.

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    Jin Yashuo, Guo Xiangchao, Cao Dunhua, Zhang Hanliang, Zhang Guodong, Li Haibing. Luminescence Properties of Ce∶YAG Single Crystals and Ceramics Under Laser Excitation[J]. Chinese Journal of Lasers, 2017, 44(10): 1003001

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    Paper Information

    Category: materials and thin films

    Received: May. 4, 2017

    Accepted: --

    Published Online: Oct. 18, 2017

    The Author Email: Yashuo Jin (j203205923@163.com)

    DOI:10.3788/CJL201744.1003001

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