Probing the spatio-temporal properties of strong field harmonic emission in the liquid phase
探讨液相强场谐波发射的时空特性
基本信息
- 批准号:210192221
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2012
- 资助国家:德国
- 起止时间:2011-12-31 至 2014-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The study of non-perturbative phenomena in atomic systems has become a vivid field of research during the last decade. In particular coherent and strong field-matter interactions such as the generation of XUV radiation through high-order harmonic generation (HHG) and its attosecond time structure are of sound interest. Only recently, the attention has turned towards the investigation of HHG in more complex systems like molecules, clusters in the gas phase and surfaces. Largely unexplored is still the liquid phase in the strong field-matter interaction context.The goal of this proposal is to study in detail the non-perturbative process of HHG in liquid water droplets experimentally. In particular the investigation of the underlying generation mechanism, the scaling laws and the efficiency of the process using coherent control of electromagnetic fields is of great interest. In a second step the controlled embedding of nanoparticles in the liquid water matrix will be conducted in order to investigate and tailor the harmonic emission characteristics. Loading the droplets with nanoparticles allows for an investigation of the quantum confinement effect. Minimizing the particle size can therefore lead to an increase of the maximum photonic energy due to an increasing band-gap within the particle. High-harmonic spectroscopy will then serve to study the spatio-temporal properties of the nanoparticles. Finally, we aim to develop a readily available experimental technique that can then be used in numerous applications.
近十年来,对原子系统中非微扰现象的研究已成为一个活跃的研究领域。特别是相干和强场物质相互作用,如通过高次谐波产生(HHG)及其阿秒时间结构的XUV辐射的产生是很有意义的。直到最近,人们的注意力才转向更复杂的系统,如分子,气相和表面中的团簇,HHG的研究。在强场与物质相互作用的背景下,液相仍是一个尚未探索的领域,本论文的目标是通过实验详细研究高次谐波在液态水滴中的非微扰过程。特别是调查的基本生成机制,标度律和效率的过程中使用相干控制的电磁场是非常感兴趣的。在第二步中,将进行纳米颗粒在液态水基质中的受控嵌入,以研究和定制谐波发射特性。用纳米颗粒装载液滴允许研究量子限制效应。因此,由于颗粒内带隙的增加,使颗粒尺寸最小化可以导致最大光子能量的增加。高次谐波光谱将用于研究纳米粒子的时空特性。最后,我们的目标是开发一个现成的实验技术,然后可以在许多应用程序中使用。
项目成果
期刊论文数量(0)
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Professor Dr. Milutin Kovacev其他文献
Professor Dr. Milutin Kovacev的其他文献
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