本文综述近年来晶体材料的上转换过程研究进展,介绍了上转换发光晶体材料研究中的一些新动向以及在室温环境下,掺杂稀土离子的晶体上转换激光运转的成功经验,列举了几种室温上转换激光器的泵浦条件、发射波长、以及转换效率等参数,说明晶体材料的上转换激光技术已趋于实用化.
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