Spectroscopic Characterization of Nd-Doped Gadolinium Vanadate Crystals
来源期刊：JOURNAL OF RARE EARTHS2003年第4期
论文作者：宋雪梅 刘玉龙 马会龙 臧竞存 朱建慧
Key words：optics; inorganic nonmetallic materials; Nd∶GdVO4; spectrum; laser; rare earths;
Abstract: The Nd3+-doped gadolinium vanadate Nd∶GdVO4 is a new type of crystal with laser properties superior to Nd∶YVO4. Experiment results show that the former has larger absorption cross section (3.261×10-19 cm2) and larger emission cross section (9.283×10-20 cm2). The heat conductivity of Nd∶GdVO4 is similar to that of Nd∶YAG, therefore it is a promising crystal for LD pumped laser. It is used to gain compact, high effect and all solid state lasers. The absorption spectra and fluorescence spectra were reported and the relationship between spectra and crystal structure was analyzed. Characteristics of energy levels of Nd3+ in the Nd∶GdVO4 crystal were discussed. The possibility of achieving laser oscillation at 0.91 μm was discussed.
宋雪梅1，刘玉龙2，马会龙1，臧竞存1，朱建慧3
(1.College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China;
2.Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;
3.North Chinese Research Institute of Electro-Optics, Beijing 100015, China)
Abstract:The Nd3+-doped gadolinium vanadate Nd∶GdVO4 is a new type of crystal with laser properties superior to Nd∶YVO4. Experiment results show that the former has larger absorption cross section (3.261×10-19 cm2) and larger emission cross section (9.283×10-20 cm2). The heat conductivity of Nd∶GdVO4 is similar to that of Nd∶YAG, therefore it is a promising crystal for LD pumped laser. It is used to gain compact, high effect and all solid state lasers. The absorption spectra and fluorescence spectra were reported and the relationship between spectra and crystal structure was analyzed. Characteristics of energy levels of Nd3+ in the Nd∶GdVO4 crystal were discussed. The possibility of achieving laser oscillation at 0.91 μm was discussed.
Key words:optics; inorganic nonmetallic materials; Nd∶GdVO4; spectrum; laser; rare earths;
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