气孔率对陶瓷激光器性能影响及控制方法  

Porosity’s effect on the performance of ceramic laser and its control method

作　　者：杨林 常金全 胡摇 申玉[2] 薄勇[2] 彭钦军[2] YANG Lin;CHANG Jinquan;HU Yao;SHEN Yu;BO Yong;PENG Qinjun(Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Institute of Physics and Chemistry Chinese Academy of Science,Beijing 100000,China)

机构地区：[1]北京理工大学光电学院精密光电测试仪器及技术北京市重点实验室,北京100081 [2]中国科学院理化技术研究所,北京100000

出　　处：《光学技术》2022年第2期189-194,共6页Optical Technique

摘　　要：透明激光陶瓷以其特有的优越性能,有望继单晶材料后成为新型高功率固体激光器的工作材料。制备高光学质量、高激光效率,高输出功率的透明陶瓷是目前的研究重点和热点。烧结而成的多晶陶瓷存在一定量的晶界以及气孔缺陷。文章介绍了气孔率与陶瓷激光器性能的关系及控制陶瓷材料气孔率的最新研究进展。研究发现,气孔率对激光陶瓷的散射系数、透过率、激光阈值、激光斜效率等性能影响较大。对陶瓷制备流程加以控制,优化制备工艺可降低激光陶瓷材料气孔率,进而提高激光陶瓷材料光学性能。Transparent laser ceramics are expected to be the gain medium of new high-power-solid-state lasers instead of single crystal due to their unique superior properties.Therefore,the preparation of transparent ceramics with high optical quality,high laser efficiency and high output power has become the hot point of current research.However,sintered polycrystalline ceramics have a certain amount of grain boundaries and pore defects.The relationship between the porosity and the performance of ceramic lasers and the latest research progress in controlling the porosity of ceramic materials are interviewed.Studies have found that the porosity has a greater impact on the scattering coefficient,transmittance,laser threshold,and laser slope efficiency of laser ceramics.Controlling the ceramic preparation process and optimizing the preparation process can reduce the porosity of the laser ceramic material,thereby improving the optical performance of the laser ceramic material.

关 键 词：光学材料 激光材料 陶瓷 气孔率 光学性能 制备 

分 类 号：TN244[电子电信—物理电子学]