在闪器晶体中产生超级连续流
Vaida Marčiulionytė1, Gintaras Tamošauskas1, Matas Šutovas1
1Laser Research Center, Vilnius University, Saulėtekio Avenue 10, LT-10223, Vilnius, Lithuania.
Scientific reports
|January 4, 2025
概括
这项研究比较了闪器晶体中的超级连续生成,例如加多石 (GGG) 和石 (BGO). 在近红外频谱中,GGG和BGO显示出低值,高功率发电的前景.
科学领域:
- 非线性光学是非线性光学.
- 材料科学 材料科学 材料科学
- 激光物理 激光物理
背景情况:
- 对各种光谱应用来说,超级连续的产生是至关重要的.
- 无毒的闪器晶体被探索为新的非线性介质.
- 五秒激光脉冲可以在固体中实现高效的非线性现象.
研究的目的:
- 为了实验性地比较多个未使用兴奋剂的闪器晶体中的超连续生成 (SCG).
- 评估这些材料中SCG的值和最佳能.
- 确定用于低值,高平均功率SCG的有前途的材料.
主要方法:
- 使用180 fs Yb:KGW激光脉冲进行SCG的比较实验研究.
- 系统评估光谱扩展动态和值能量的系统评估.
- 对光谱切线波长和红移幅度的分析.
主要成果:
- 所有测试的非线性材料都表现出光谱扩展,其中加多石榴石 (GGG) 显示出最大的红移 (>2000 nm).
- 木酸 (BGO) 和GGG在200kHz时表现出最低的SCG值和无损光学性能.
- 短波长切线与材料带隙相关,与理论趋势一致.
结论:
- 加多石榴石 (GGG) 和木 (BGO) 被认为是近波和短波红外SCG中YAG和KGW的优越替代品.
- 这些材料提供耐用,光学无损性能,适合高中功率应用.
- 批量闪器的性能可以通过在光系统中的多光子激发来研究.
相关概念视频
Super-resolution Fluorescence Microscopy
6.7K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
6.7K
Confocal Fluorescence Microscopy
12.8K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
12.8K


