在NH4B4O6F晶体中产生真空紫外线的第二和
Fangfang Zhang1,2, Zilong Chen1, Chen Cui1
1CAS Key Laboratory of Functional Materials and Devices for Special Environmental Conditions, Xinjiang Key Laboratory of Functional Crystal Materials, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China.
Nature
|January 28, 2026
概括
研究人员开发了一种新的氧乙酸盐晶体NH4B4O6F (ABF),用于高效的真空紫外线 (VUV) 光产生. 这种晶体通过非线性光学方法实现了创纪录的158.9nmVUV光产生,从而推进了光谱学和激光技术.
科学领域:
- 材料科学 材料科学 材料科学
- 光学和光子学 在光学和光子学.
- 固态化学 固态化学
背景情况:
- 真空紫外线 (VUV) 光源 (100-200 nm) 对于光谱学,量子研究和半导体光刻是必不可少的.
- 使用非线性光学 (NLO) 晶体的第二声波生成 (SHG) 是VUV生成的最有效方法.
- 现有的NLO晶体在相匹配,效率和晶体生长方面存在局限性,阻碍了VUV生产.
研究的目的:
- 开发一种新的NLO晶体材料,用于高效的VUV光产生.
- 为了克服目前NLO晶体在VUV应用中的局限性.
- 探索氧酸盐化合物在先进光学应用中的潜力.
主要方法:
- 氧酸晶体NH4B4O6F (ABF) 的合成和表征.
- 使用特定相匹配角度的ABF制造VUV设备.
- 通过相匹配SHG进行VUV光生成的实验测量.
主要成果:
- 通过使用ABF的相匹配SHG实现了创纪录的VUV波长158.9nm.
- 在177.3nm时产生了4.8mJ的最大纳秒脉冲能量.
- 获得了5.9%的VUV转换效率,这归因于晶体不对称的亚晶格结构.
结论:
- NH4B4O6F (ABF) 是一个非常有前途的NLO材料用于VUV生成.
- 晶体结构有助于提高NLO性能,满足相匹配要求.
- ABF拥有开发紧,高功率的VUV激光器的潜力.
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