Nanomatrix Effects in der Ultrafast Ionisation Dynamics of Clusters in Superfluid Helium Droplets

超流氦液滴中团簇超快电离动力学的纳米基体效应

• 批准号: 392530662
• 负责人: Privatdozent Dr. Josef Tiggesbäumker, Ph.D.
• 金额: --
• 依托单位: AG Cluster und Nanostrukturen
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/392530662?language=en
• 关键词: Nanomatrix; Effects; der; Ultrafast; Ionisation

The excitation of matter with intense and phase-controlled laser fields like two-color pulses opens up a route to study and even control the non-linear dynamics on the natural time scale of the electron motion. Tips and in particular clusters are promising nanoscale objects to study such processes since beside local field enhanced or collective electron motion also the dimensions of the target (diameter cluster smaller/ comparable to laser wavelength) plays a significant role. Central to this project are clusters in helium nanodroplets, whereas phase-sensitive electron spectroscopy (phase-of-the-phase, PoP) is applied to study the impact on the dynamic of clusters in a complex environment at the highest time resolution. The fact that PoP spectroscopy extracts the coherent signals from the experimental spectra is a clear advantage of method.The novel combination of a many-body system like a cluster in a superfluid helium droplet allows to investigate (i) the strong-field induced ionization dynamics in an environment but also (ii) an alternative access to the phenomenon of Bose-Einstein condensation. We propose to determine the critical size for the formation of quantum vortices by PoP spectroscopy providing new contributions to the topic of superfluidity in finite systems.

具有强烈和相控制的激光场（如两色脉冲）对物质的激发开辟了一条学习的途径，甚至在电子运动的自然时间尺度上控制了非线性动力学。尖端，尤其是集群有望研究此类过程，因为在局部场外增强或集体电子运动之外，目标的尺寸（直径簇较小/可与激光波长相当）也起着重要作用。该项目的核心是氦纳米光中的簇，而相位敏感的电子光谱（POP相）则用于研究在最高时间分辨率下在复杂环境中群集动态的影响。流行光谱从实验光谱中提取一致的信号这一事实是方法的明显优势。多体系统的新型组合，例如超级流体氦液滴中的群集，可以调查（i）在环境中强烈诱导的电场电离动态，但也可以访问（ii）bose-necomenon的替代品。我们建议通过流行光谱确定形成量子涡旋的临界大小，从而为有限系统中的超流体主题提供了新的贡献。

项目成果

Highly Charged Rydberg Ions from the Coulomb Explosion of Clusters.

来自团簇库仑爆炸的高电荷里德伯离子

• DOI: 10.1103/physrevlett.120.133207
• 发表时间: 2018
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: D. Komar;L. Kazak;M. Almassarani;K-H. Meiwes-Broer;J. Tiggesbäumker
• 通讯作者: J. Tiggesbäumker

All-optical spatio-temporal control of electron emission from SiO2 nanospheres with femtosecond two-color laser fields

• DOI: 10.1088/1367-2630/ab26c1
• 发表时间: 2019-07-01
• 期刊: NEW JOURNAL OF PHYSICS
• 影响因子: 3.3
• 作者: Liu, Qingcao;Zherebtsov, Sergey;Kling, Matthias F.
• 通讯作者: Kling, Matthias F.

Comparison of Electron and Ion Emission from Xenon Cluster-Induced Ignition of Helium Nanodroplets.

氙簇诱导氦纳米液滴点火的电子和离子发射比较

• DOI: 10.1021/acs.jpca.8b06673
• 发表时间: 2018
• 期刊: The journal of physical chemistry. A
• 作者: M. Kelbg;A. Heidenreich;L. Kazak;M. Zabel;B. Krebs;K.-H. Meiwes-Broer;J. Tiggesbäumker
• 通讯作者: J. Tiggesbäumker

Development of ion recoil energy distributions in the Coulomb explosion of argon clusters resolved by charge-state selective ion energy spectroscopy

通过电荷态选择性离子能谱解析氩簇库仑爆炸中离子反冲能量分布的发展

• DOI: 10.1140/epjs/s11734-021-00108-x
• 发表时间: 2021
• 期刊: The European Physical Journal Special Topics
• 作者: D. Komar;L. Kazak;K.-H. Meiwes-Broer;J. Tiggesbäumker
• 通讯作者: J. Tiggesbäumker

Auger emission from the Coulomb explosion of helium nanoplasmas.

氦纳米等离子体库仑爆炸的俄歇发射

• DOI: 10.1063/1.5089943
• 发表时间: 2019
• 期刊: The Journal of chemical physics
• 作者: M. Kelbg;M. Zabel;B. Krebs;L. Kazak;K.-H. Meiwes-Broer;J. Tiggesbäumker
• 通讯作者: J. Tiggesbäumker