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Nd3+ Cluster Adjustment in Nd3+:CaNb2O6 by Codoping La3+ Buffers for Improvement of Fundamental and Self-Stimulated Raman Scattering Laser Operation: A Study Case from the Perspective of Defect Chemistry
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2019-10-31 , DOI: 10.1021/acs.cgd.9b00757 Xinghong Gong 1 , Haiyong Zhu 2 , Yujin Chen 1 , Jianhua Huang 1 , Yanfu Lin 1 , Zundu Luo 1 , Yidong Huang 1
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2019-10-31 , DOI: 10.1021/acs.cgd.9b00757 Xinghong Gong 1 , Haiyong Zhu 2 , Yujin Chen 1 , Jianhua Huang 1 , Yanfu Lin 1 , Zundu Luo 1 , Yidong Huang 1
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The fluorescence quenching caused by Nd3+ clusters in Nd3+-doped crystals even at low Nd3+ concentration has restrained the performance of Nd3+ lasers. In this work, Nd3+:CaNb2O6 and Nd3+:La3+:CaNb2O6 single crystals have been grown by the Czochralski method. RE3+ (RE3+ = Nd3+, La3+) ion incorporation mechanisms, the formation of Nd3+ clusters, and the feasibility of La3+ ions as buffers in RE3+:CaNb2O6 crystals have been demonstrated and assessed by atomistic simulation methods. The spectral and laser properties of Nd3+:CaNb2O6 and Nd3+:La3+:CaNb2O6 have been measured. All of the results indicate the Nd3+ dimers with distances between Nd3+ close to the critical interaction distance have formed in Nd3+:CaNb2O6 and the La3+ ions as buffers can alleviate the interaction of Nd3+ effectively in the Nd3+:La3+:CaNb2O6 as expected. Benefiting from the introduction of La3+ buffers, about 2.6 W fundamental laser with a slope efficiency of 36.5% and about a 310 mW self-stimulated Raman scattering laser with conversion and slope efficiencies of 8.3% and 9.5%, respectively, which are superior to those of Nd3+:CaNb2O6, have been achieved in Nd3+:La3+:CaNb2O6.
中文翻译：
通过共掺杂La 3+缓冲液来改善Nd 3+：CaNb 2 O 6中的Nd 3+团簇，以改善基本和自激拉曼散射激光操作：从缺陷化学的角度研究案例
即使在低Nd 3+浓度下，由掺Nd 3+的晶体中Nd 3+团簇引起的荧光猝灭也限制了Nd 3+激光器的性能。在这项工作中，Nd 3+：CaNb 2 O 6和Nd 3+：La 3+：CaNb 2 O 6单晶已经通过切克劳斯基方法生长。RE 3+（RE 3+ = Nd 3+，La 3+）离子掺入机理，Nd 3+团簇的形成以及La 3+离子作为RE中缓冲剂的可行性3+：CaNb 2 O 6晶体已被证明并通过原子模拟方法进行了评估。已经测量了Nd 3+：CaNb 2 O 6和Nd 3+：La 3+：CaNb 2 O 6的光谱和激光性质。所有结果指示的Nd 3+二聚体与钕之间的距离3+接近临界相互作用距离已经形成在钕3+：CANB 2 Ó 6和La 3+离子作为缓冲剂可以减轻Nd组成的相互作用3+有效在Nd3+：La 3+：CaNb 2 O 6符合预期。得益于La 3+缓冲液的引入，斜率效率为36.5％的约2.6 W基本激光器和转换率和斜率效率分别为8.3％和9.5％的约310 mW自激发拉曼散射激光器，具有超强的优越性。那些的Nd 3+：CANB 2 Ó 6，已在钕已经实现3+的La：3+：CANB 2 Ó 6。
更新日期：2019-11-01
中文翻译：
通过共掺杂La 3+缓冲液来改善Nd 3+：CaNb 2 O 6中的Nd 3+团簇，以改善基本和自激拉曼散射激光操作：从缺陷化学的角度研究案例
即使在低Nd 3+浓度下，由掺Nd 3+的晶体中Nd 3+团簇引起的荧光猝灭也限制了Nd 3+激光器的性能。在这项工作中，Nd 3+：CaNb 2 O 6和Nd 3+：La 3+：CaNb 2 O 6单晶已经通过切克劳斯基方法生长。RE 3+（RE 3+ = Nd 3+，La 3+）离子掺入机理，Nd 3+团簇的形成以及La 3+离子作为RE中缓冲剂的可行性3+：CaNb 2 O 6晶体已被证明并通过原子模拟方法进行了评估。已经测量了Nd 3+：CaNb 2 O 6和Nd 3+：La 3+：CaNb 2 O 6的光谱和激光性质。所有结果指示的Nd 3+二聚体与钕之间的距离3+接近临界相互作用距离已经形成在钕3+：CANB 2 Ó 6和La 3+离子作为缓冲剂可以减轻Nd组成的相互作用3+有效在Nd3+：La 3+：CaNb 2 O 6符合预期。得益于La 3+缓冲液的引入，斜率效率为36.5％的约2.6 W基本激光器和转换率和斜率效率分别为8.3％和9.5％的约310 mW自激发拉曼散射激光器，具有超强的优越性。那些的Nd 3+：CANB 2 Ó 6，已在钕已经实现3+的La：3+：CANB 2 Ó 6。
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