Tm3+ 和 Ho3+ 共掺杂 GdScO3 晶体的生长、光谱和激光特性

IF 3.1 3区 物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION
Lei Huang , Junrui Zhang , Qingli Zhang , Guihua Sun , Renqin Dou , Xiaofei Wang , Deming Zhang , Jinyun Gao , Yu Sun , Wenpeng Liu , Jianqiao Luo
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引用次数: 0

摘要

用 Czochralski 方法生长了 Tm,Ho:GdScO3 单晶。对晶体的质量和有效偏析系数进行了表征,并研究了晶体(1 0 0)面的光谱特性。Tm,Ho:GdScO3 在 793 nm 波长处的吸收截面为 1.61 × 10-20 cm2,在 2020 nm 波长处的发射截面为 1.39 × 10-20 cm2。研究人员考察了 793 nm LD 端泵浦晶体的激光性能。在连续波泵浦模式下,最大输出功率为 240 mW,斜率效率为 9.1%。在脉冲模式下,实现了 507 mW 的最大平均输出功率。在 100 Hz 和 400 μs 条件下,获得了 13.7 % 的最大斜率效率。激光波长为 2096 nm。光束质量因子 Mx2/My2 的拟合值为 1.81/1.80。这些结果表明,Tm,Ho:GdScO3 晶体有望成为近红外激光应用的候选介质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Crystal growth, spectra and laser properties of Tm3+ and Ho3+ co-doped GdScO3 crystal
Tm,Ho:GdScO3 single crystal was grown by the Czochralski method. Its quality and effective segregation coefficient of crystal were characterized, and spectral properties of crystal (1 0 0) plane were studied. The absorption cross-section of Tm,Ho:GdScO3 at 793 nm is 1.61 × 10−20 cm2 and emission cross-section at 2020 nm is 1.39 × 10−20 cm2. The laser performance of the crystal by 793 nm LD end-pumped was investigated. The maximum output power of 240 mW was obtained with a slope efficiency of 9.1 % in CW(continuous wave) pump mode. In pulse mode, the maximum average output power of 507 mW was achieved. The maximum slope efficiency of 13.7 % was obtained with 100 Hz and 400 μs. The laser wavelength was 2096 nm. The beam quality factors Mx2/My2 were fitted to be 1.81/1.80. These results indicate that Tm,Ho:GdScO3 crystal is a promising candidate medium for near-infrared laser application.
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来源期刊
CiteScore
5.70
自引率
12.10%
发文量
400
审稿时长
67 days
期刊介绍: The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.
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