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Optical properties of Mg2+,Yb3+,and Ho3+ tri-doped LiNbO3 crystals

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【作者】 代丽； 刘春蕊； 谭超； 阎哲华； 徐玉恒；

【Author】 Li Dai;Chun-Rui Liu;Chao Tan;Zhe-Hua Yan;Yu-Heng Xu;Applied Science College,Harbin University of Science and Technology;Department of Applied Chemistry,Harbin Institute of Technology;

【机构】 Applied Science College,Harbin University of Science and Technology； Department of Applied Chemistry,Harbin Institute of Technology；

【摘要】 A series of LiNbO3 crystals tri-doped with Mg2+,Yb3+,and Ho3+ are grown by the conventional Czochraski technique.The concentrations of Mg2+,Yb3+,and Ho3+ ions in Mg:Yb:Ho:LiNbO3 crystals are measured by using an inductively coupled plasma atomic emission spectrometry.The x-ray diffraction is proposed to determine the lattice constant and analyze the internal structure of the crystal.The light-induced scattering of Mg:Yb:Ho:LiNbO3 crystal is quantitatively described via the threshold effect of incident exposure energy flux.The exposure energy（Er） is calculated to discuss the optical damage resistance ability.The exposure energy of Mg（7 mol）:Yb:Ho:LiNbO3 crystal is 709.17 J/cm2,approximately 425 times higher than that of the Mg（l mol）:Yb:Ho:LiNbO3 crystal in magnitude.The blue,red,and very intense green bands of Mg:Yb:Ho:LiNbO3 crystal are observed under the 980-nm laser excitation to evaluate the up-conversion emission properties.The dependence of the emission intensity on pumping power indicates that the up-conversion emission is a two-photon process.The up-conversion emission mechanism is discussed in detail.This study indicates that Mg:Yb:Ho:LiNbO3 crystal can be applied to the fabrication of new multifunctional photoluminescence devices.

【Abstract】 A series of LiNbO3 crystals tri-doped with Mg2+,Yb3+,and Ho3+ are grown by the conventional Czochraski technique.The concentrations of Mg2+,Yb3+,and Ho3+ ions in Mg:Yb:Ho:LiNbO3 crystals are measured by using an inductively coupled plasma atomic emission spectrometry.The x-ray diffraction is proposed to determine the lattice constant and analyze the internal structure of the crystal.The light-induced scattering of Mg:Yb:Ho:LiNbO3 crystal is quantitatively described via the threshold effect of incident exposure energy flux.The exposure energy（Er） is calculated to discuss the optical damage resistance ability.The exposure energy of Mg（7 mol）:Yb:Ho:LiNbO3 crystal is 709.17 J/cm2,approximately 425 times higher than that of the Mg（l mol）:Yb:Ho:LiNbO3 crystal in magnitude.The blue,red,and very intense green bands of Mg:Yb:Ho:LiNbO3 crystal are observed under the 980-nm laser excitation to evaluate the up-conversion emission properties.The dependence of the emission intensity on pumping power indicates that the up-conversion emission is a two-photon process.The up-conversion emission mechanism is discussed in detail.This study indicates that Mg:Yb:Ho:LiNbO3 crystal can be applied to the fabrication of new multifunctional photoluminescence devices.

【关键词】 crystal growth； optical properties； x-ray diffraction； crystal structure；
【Key words】 crystal growth； optical properties； x-ray diffraction； crystal structure；
【基金】 Project supported by the National Natural Science Foundation of China(Grant No.51301055);the Youth Science Fund of Heilongjiang Province,China(Grant No.QC2015061);the Special Funds of Harbin Innovation Talents in Science and Technology Research,China(Grant No.2015RQQXJ045);the Science Funds for the Young Innovative Talents of Harbin University of Science and Technology,China(Grant No.201501)
  • 【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2017年04期
  • 【分类号】O734
  • 【被引频次】5
  • 【下载频次】34
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