主族金属离子激光材料——激光材料领域发展的新方向

摘要

主族金属离子将成为继过渡金属离子、稀土离子后的第三类激活离子,是激光材料领域发展的新方向.本文总结了近年来国内外关于主族金属离子掺杂材料的研究进展,主要包括主族离子在玻璃、光纤和单晶等各种基质中的近红外宽带发光特性、发光机理的理论解释以及激光输出性能等等.对主族金属离子激光材料的研究方向和应用前景进行了展望,指出在主族金属离子掺杂单晶体材料中获得近红外激光输出将具有重要意义.%Main-group metal ions will be the third class of active ions, subquent to transition-metal and rare-earth ions. Main-group metal ions doped material is proved to be a new developing direction in the field of laser materials.The developments of main-group metal ions doped materials are summarized on the following topics: (1) the characteristics of the near-infrared ultrabroadband luminescence obtained in Bi-doped glasses, glass-fibers and single crystals, (2) the nature of the luminescence; and (3) laser performances of bismuth-doped fiber in various operation modes. The future research directions and applications of main-group metal ions doped laser materials are outlooked. The laser outputs in single crystal will be of milestone significance in its practical application.