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固体的极端紫外线高波光谱学

T T Luu¹, M Garg¹, S Yu Kruchinin¹

¹Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany.

|May 29, 2015

概括

研究人员从SiO2薄膜中产生了宽带连贯的极紫外线 (EUV) 辐射. 这一突破使得固体中的秒光谱学成为可能,进步光波电子学和固态EUV光子学.

科学领域:

凝聚物质物理学凝聚物质物理学
在第二个科学时刻.
固态光子学固态光子学

背景情况:

极端紫外线 (EUV) 高波辐射对于原子,分子和等离子体的attosecond光谱学至关重要.
研究凝聚物质中的强场电子动态需要在散装固体中产生和操纵EUV,这是一个长期存在的挑战.
之前的研究表明,半导体中产生深紫外线辐射,并对太赫兹场进行光学上升转换.

研究的目的:

为了证明从固体材料产生宽带连贯的EUV辐射.
使用EUV光谱来探测固体的电子性质.
为了能够对凝聚物质中的电子动态进行每秒钟的控制.

主要方法:

用强烈的光脉冲对二氧化 (SiO2) 薄膜进行辐射,几循环到次循环的光脉冲.
辐射到40电子伏的宽带连贯EUV辐射的特征.
产生的EUV光谱的应用,用于固态材料的高波谱学.

主要成果:

从SiO2薄膜产生的宽带连贯EUV辐射 (高达40 eV) 的产生.
在SiO2的导电带中,发射的EUV辐射与多佩塔赫兹的带内电流的关联.
展示高波谱法,以获取传导带能量分散配置的细节.
对带内电子运动的每秒钟控制的观察.

结论:

这项工作建立了固态EUV光子学,并在凝聚物质中推进光波电子学到多佩塔赫兹频率.
开发的技术可以对电子动力学和固体中的电子结构进行前所未有的洞察.
这些发现为超快光谱和对凝聚物质系统的控制开辟了新的途径.

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