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Updated: Jun 24, 2025

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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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概括
这项研究引入了第一个Kerr-lens模式锁定激光器,使用Ytterbium-doped Gadolinium Scandate (Yb:GdScO3) 晶体. 这种新型晶体能够在1μm区域高效地产生超短激光脉冲.
科学领域:
- 激光物理和材料科学.
- 固态激光器的开发.
- 光电子材料. 光电子材料.
背景情况:
- Yb3+化晶体对于高效的近红外激光产生至关重要.
- 无序的晶体结构可以提供独特的光学特性.
- 开发新的激光材料是推动超短脉冲技术发展的关键.
研究的目的:
- 报告了第一个使用Yb:GdScO3晶体的Kerr-lens模式锁定激光器.
- 为了研究Yb:GdScO3.3的光谱和激光特性.
- 评估Yb:GdScO3在产生超短脉冲方面的潜力.
主要方法:
- 使用Czochralski方法的Yb:GdScO3晶体的生长.
- 在室温和低温下进行光谱分析.
- 连续波 (CW) 激光操作和Kerr-lens模式锁定实验.
- 激光输出功率,效率,脉冲持续时间和重复率的表征.
主要成果:
- Yb:GdScO3 呈现出广泛而强烈的极化发射光谱 (975-1075 nm).
- 一个CW激光器实现了8.74W的最大输出功率,斜率效率为76.1%.
- 最短74 fs的超短脉冲在~1061.7 nm时产生.
- 在101.4 MHz的重复率下,平均输出功率为32mW.
结论:
- Yb:GdScO3是1μm超短激光器的一个有前途的新增强介质.
- 无序的矿结构有助于有利的激光性能.
- 这项工作为使用Yb:GdScO3.3的先进激光应用铺平了道路.
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