| YAlO3：（Nd^3＋,Lu^3＋）单晶的各向异性吸收光谱 |
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| 引用本文： | 张兴宏,江炳熙.YAlO3：（Nd^3＋,Lu^3＋）单晶的各向异性吸收光谱[J].光谱学与光谱分析,1998,18(2):144-148. |
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| 作者姓名： | 张兴宏 江炳熙 |
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| 作者单位： | 中国科学院半导体研究所半导体材料科学实验室 |
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| 摘 要： | 在室温下测量了ＹＡｌＯ３：（Ｎｄ＾３＋，Ｌｕ＾３＋）单昌三个晶轴方向的吸收光谱。其吸收谱带强度明显呈各向异生。将Ｊｕｄｄ－Ｏｆｅｌｔ理论加以修正，并扩展应用于处理各晶轴方向的吸收光谱。
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| 关 键 词： | 铝酸钇晶体 激光晶体 吸收光谱 各向异性 |
ANISOTROPIC ABSORPTION SPECTRA IN YALO 3:(Nd 3+ AND Lu 3+ )SINGLE CRYSTAL |
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| X Zhang,B Jiang,J Xu,X Lin,Z Wang.ANISOTROPIC ABSORPTION SPECTRA IN YALO 3:(Nd 3+ AND Lu 3+ )SINGLE CRYSTAL[J].Spectroscopy and Spectral Analysis,1998,18(2):144-148. |
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| Authors: | X Zhang B Jiang J Xu X Lin Z Wang |
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| Institution: | Laboratory of Semiconductor Material Science, Institute of Semiconductors, Chinese Academy of Sciences 100083 Beijing. |
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| Abstract: | Absorption spectra of YAlO3: (Nd3+, Lu3+) single crystals for the three crystallographic axes were investigated at room temperature. The absorption band intensities distinctly revealed the anisotropy of YAlO3: (Nd3+, Lu3+). The Judd-Ofelt theory was modified and applied to the treatment of the anisotropic absorption spectra. The absorption cross sections and the electric dipole oscillator strengths of various bands were calculated for three crystallographic axes of YAlO3: (Nd3+, Lu3+) crystals. Three sets of phenomenological parameters omegat(alpha) were determined. The validity of the modified Judd-Ofelt approach is discussed in detail. Moreover, we explained the anisotropy of the optical absorption of YAlO3: (Nd3+, Lu3+). |
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| Keywords: | YAlO 3:(Nd 3+ Lu 3+ ) Absorption spectra Anisotropy Judd Ofelt theory |
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