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SBN晶体中Eu³⁺激发态的能量传递

ENERGY TRANSFER OF Eu³⁺ EXCITED STATES IN SBN CRYSTAL

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【Author】 ZHAO XIAO-HONG CHEN TING ZHANG GUI-LAN CHEN WEN-JUDepartment, of Physics, Nankai University, TianjinSUN DA-LIANG SONG YONG-YUAN CHEN HUAN-CHUInstitute of Crystal Materials, Shandong University, Jinan

【机构】南开大学物理系；南开大学物理系；山东大学晶体材料研究所；山东大学晶体材料研究所北京邮电学院基础部；

【摘要】通过选择激发SBN晶体中处于不同晶场位的Eu³⁺离子,得到⁵D₀→⁷F₁的时间分辨荧光光谱,确定了不等价晶场位的离子间的能量转移速率。荧光峰随激发波数的变化表明局部晶场的连续畸变。更多还原

【Abstract】 Eu3+ ions at different crystal-field sites in SBN crystal are selectively pumped. From the time-resolved fluorescence spectra of 5D₀?7F₁, the energy transfer rates between ions in non-equivalent sites are evaluated. The dependence of fluorescence peak-frequency on the excitation wavenumber indicates the continuous distortion of local crystal field.更多还原