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639 nm 瓦级声光 Q 开关 Pr:YLF 激光器
高能脉冲可见光激光器在各种应用中都有很高的需求，包括但不限于光学显微镜 [ 1 ]、激光显示器 [ 2 – 4 ]、医疗应用 [ 5 ] 和激光通信 [ 6 ]。此外，高功率、高光束质量的红光激光器可以作为掺杂 Cr 3 和 Ho 3 离子的透明材料的泵浦源，例如 Cr:LiSAF（Cr 3 :LiSrAlF 6 ）[ 7 ] 和 Ho:ZFG（Ho 3 掺杂的氟化锆玻璃）[ 8 ]。早期研究中，产生红光常用的技术是利用非线性光学晶体如KTP（KTiOPO 4 ）、LBO（LiB 3 O 5 ）等，通过Nd 3 掺杂激光晶体产生1.3 μm基频激光[9，10]。该方法已被许多研究者报道，利用Q开关操作调节脉冲宽度，输出功率大多在数百毫瓦范围内。到目前为止，已报道了一些稀土离子掺杂晶体，如Pr 3 、Dy 3 和Sm 3 离子，在红色光谱区产生有效发射[11]。近年来，通过蓝色激光源泵浦Pr 3 掺杂激光材料直接产生红光技术发展迅速，具有结构紧凑、转换效率高、稳定性好等优点。 Pr3掺杂材料由于其大的发射截面和四能级激光系统可见光跃迁，已被证明是直接产生可见激光辐射最有效的解决方案之一[12]。
评估高等教育创新基金（HEIF）计划：2008-2020
AHRC Arts and Humanities Research Council BBSRC Biotechnology and Biological Sciences Research Council BEIS Department for Business, Energy & Industrial Strategy BIS Department of Business and Industrial Strategy CA Contribution Analysis CCF Connecting Capability Fund DEFRA Department for Environment, Food & Rural Affairs DSIT Department for Science, Innovation & Technology ERDF European Regional Development Fund ESIF European Structural and Investment Funds EQ Evaluation Question EPSRC Engineering and Physical Sciences Research Council ESRC Economic and Social Research Council FTE Full-Time Equivalent HE Higher Education HE-BCI Higher Education Business & Community Interaction HEFCW Higher Education Funding Council for Wales HEFCE Higher Education Funding Council England HEI Higher Education Institution HEIF Higher Education Innovation Fund HEP Higher Education Provider HESA Higher Education Statistical Agency HMG His Majesty's Government IAA Impact Acceleration Account IEF Innovation and Engagement Fund IUK Innovate UK IP Intellectual Property KE Knowledge Exchange KEF知识交流框架KTP知识转移伙伴MRC医学研究委员会NERC自然环境研究委员会的统计领土单位的命名法PG研究生PGR研究生PGR研究生研究QR质量与研发研究与发展RE RESERVE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE RE REVINCH进行卓越教学框架TRP技术评论小组TT技术转移UKRI UK UK研究与创新