掺钕氟磷酸锶单晶研究  

Investigation on Nd:Sr_5(PO_4)_3F Single Crystal

作　　者：孟宪林[1] 祝莉[1] 张怀金[1] 张宏臻 杨兆荷[1] WANGPu DawesJ. WANGChang-Qing CHOWYT 

机构地区：[1]山东大学晶体材料国家重点实验室,济南250100 [2]CentreforLasersandApplications,MacquarieUniversity [3]DepartmentofElectronicEngineering,CityUniversityofHongKong

出　　处：《无机材料学报》1998年第6期787-792,共6页Journal of Inorganic Materials

摘　　要：为探索和评价新型激光晶体掺钛氟磷酸银Nd：Sr5（PO4）3F（Nd：SFAP）在制作激光器方面的应用，对其生长、结构、光谱与激光特性及一些物理性能进行了系统研究．采用Czochralski法成功地生长出单晶；用先进的设备对所生长之晶体进行了有关测量，并进行了以激光二极管为泵浦源、该晶体为工作物质的激光实验．结果表明：晶体生长中Nd的有效分凝系数为0.52；理想的泵浦光应是806um的π偏振光，荧光寿命为175μs；泵浦阈值15mW，斜效率为31．8％研究结论为：Nd：SFAP晶体是制作小型LD泵浦激光器的理想材料。The growth, structure, spectra, laser preperties and some physical properties of a new lasercrystal Nd:Sr5 (PO4)3F (Nd:SFAP) were studied in order to search and evaluate the applications ofthe crystal to laser. The Nd:SFAP single crystals were successfully grown by Czochralski methodand the laser experiment of the crystal crystal pumped by laser diode (LD) was demonstrated.The properties of as-grown crystal were measured by advanced equipments. Experimental resultsshowed that Effective distribution coeffcient Keff of Nd was 0.52. π polarization light with wavelength of 806um was the best pumping light. The fluorescence lifetime of 2 at % Nd:SFAP crystalwas 175 as. The pumping threshold of Nd:SFAP laser was 15mW and its slope efficiency was31.8%. From the investigation we can draw a conchusion: the Nd:SFAP crystal is an ideal lasermateiral for lower power lasers, but it isn't suited to be applied to higher power lasers.

关 键 词：掺钕 氟磷酸锶 晶体生长 激光器 激光晶体 

分 类 号：TN248.104[电子电信—物理电子学] O78[理学—晶体学]