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Study on near-infrared spectroscopic and laser properties of Pr-dped fluoride crystals

Abstract

掺Pr3+:YLF晶体具有声子能量低,优异的热光特性,丰富的可见光荧光谱线等特点,成为可见光波段下转换激光器的首选工作物质之一,并得到了广泛的研究。以InGaN半导体激光器或光泵半导体激光器为泵浦源,Pr3+:YLF晶体可以产生红光、橙光、绿光以及深红光等波段的可见光激光。本论文的研究表明,Pr3+:YLF晶体除了可以发出可见光激光以外,还可以产生864nm至936nm的近红外激光,峰值波长为915nm。此外,Pr3+:YLF晶体还可以产生670nm的红光激光,此为Pr3+:YLF晶体该波长的首次激射。在晶体光谱理论研究方面,1962年Judd与Ofelt两人发表了利用掺稀土离子的晶体的吸收光...Owing to the low phonon energy, excellent optical-thermal properties and capability of emitting multiband spectra in the visible light region, Pr3+-doped LiYF4 (Pr3+:YLF) crystal has become one of the most favorable laser materials which can emit visible light through down-conversion directly, and, thus, investigated extensively. Pumped by the InGaN-LD or the optical pumped semiconductor laser (OP...学位:工学博士院系专业:信息科学与技术学院_物理电子学学号:2312012015392

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