新型Al_2O_(3)-CaO-ZnO玻璃制备与Er^(3+)∶2.7 μm中红外发光性能  

Preparation and Er^(3+):2.7μm Mid-infrared Emission Properties of Novel Al_(2)O_(3)-CaO-ZnO Glass

作　　者：刘银 万杰 肖永宝 禹德朝 LIU Yin;WAN Jie;XIAO Yongbao;YU Dechao(School of Metallurgy and Materials Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;State Key Laboratory of Luminescent Materials and Devices,Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied and Techniques,School of Physics and Optoelectronics,South China University of Technology,Guangzhou 510641,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400045,China;School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]重庆科技大学冶金与材料工程学院,重庆401331 [2]华南理工大学物理与光电学院,发光材料与器件国家重点实验室,广东省光纤激光材料与应用技术重点实验室,广东广州510640 [3]重庆大学材料科学与工程学院,重庆400045 [4]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《发光学报》2024年第5期727-735,共9页Chinese Journal of Luminescence

基　　金：重庆科技大学人才引进科研启动经费(ckrc2021013)。

摘　　要：3 μm波段的中红外光纤激光器在生物医疗、环境监测和军事等领域具有重要的应用前景,在国内外受到了广泛的关注和研究。低声子能量、高效稳定的中红外玻璃作为光纤激光器的核心工作介质,是实现3 μm波段中红外激光的重要基础。本文采用熔融-淬冷法制备了掺Er^(3+)新型Al_2O_(3)-CaO-ZnO玻璃,通过热分析、拉曼光谱、透射光谱以及光致发光光谱等对玻璃的热力学、结构、透过波长范围和中红外发光性能进行了表征。结果表明,Al_(2)O_(3)-CaO-ZnO玻璃具有较高的玻璃化转变温度(~750℃)、较低的声子能量(~780 cm^(-1))以及较宽的透过波长范围(0.5~5 μm);在980 nm激光激发下,在掺Er^(3+)玻璃中观察到了明显的2.7 μm(Er^(3+)∶^(4)I_(11/2)→^(4)I_(13/2))波段荧光发射。研究结果表明Al_(2)O_(3)-CaO-ZnO体系玻璃是一种优良的中红外激光基质材料。Mid-infrared fiber lasers operating at 3μm bands have attracted considerable attention due to their potential applications in medicine,environmental monitoring,military defense,etc.One of the key foundations to achieve 3μm mid-infrared fiber laser is the gain medium made by efficient and stable glass host materials with low phonon energy.In this study,novel Er^(3+)-doped Al_(2)O_(3)-CaO-ZnO glasses were synthesized by melt-quenching method.Properties of thermodynamic,structure,transmission wavelength range,and mid-infrared emission were studied by thermal analysis,Raman spectra,transmission spectra,and photoluminescence spectra.The results showed that Al_(2)O_(3)-CaO-ZnO glasses possess a high glass transition temperature(~750℃),low phonon energy(~780 cm^(−1)),and wide transmission wavelength range(0.5−5μm).Besides,intense 2.7μm emissions originating from Er^(3+):^(4)I_(11/2)→^(4)I_(13/2) transition were observed in glass under 980 nm laser diode excitation.Our results indicate that Al_(2)O_(3)-CaO-ZnO glasses could be a potential host material for mid-infrared laser.

关 键 词：铝酸盐玻璃 Er^(3+)掺杂 2.7μm发光 中红外发光 

分 类 号：O482.31[理学—固体物理]