Time-resolved low energy photoelectron diffraction for the study of surface structural dynamics with sub-100 fs temporal resolution
用于研究表面结构动力学的时间分辨低能光电子衍射,时间分辨率低于 100 fs
基本信息
- 批准号:433458487
- 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:2019
- 资助国家:德国
- 起止时间:2018-12-31 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Based on the diffraction of low energy photoelectrons we aim for proving and applying a novel experimental concept for the study of ultrafast structural dynamics at surfaces with sub-100 fs temporal resolution. Next to structural information, the detected transient photoemission signal will at the same time carry information about excitation and relaxation of the involved surface electronic system potentially allowing for a direct correlation of structural and carrier dynamics at surfaces. Within our studies we will focus on sub-monolayer adsorption of phthalocyanine molecules on noble metal surfaces. The distinctive low energy photoelectron diffraction patterns that have been reported for different representatives of this adsorbate-surface system in static ARPES experiments represent an ideal test bed for the examination of the capabilities and limitations of the proposed concept. Furthermore, we expect that the combined interrogation of structural and carrier dynamics can shed new light into the complex interaction mechanisms governing the multifaceted properties of this metal-organic interface class. Two different experimental configurations will be realized and tested within the project: In using 70 fs NUV laser pulses (6 eV) for the generation of the probing photoelectrons we will be able to probe structural and carrier dynamics at an ultimate temporal resolution below 100 fs. The intrinsic very low kinetic energies of the photoelectrons of Ekin < 2 eV will, however, limit our studies to small and moderate pump fluences due to a signal background arising from pump-induced parasitic electron emission. In an alternative configuration we will use 18 eV vacuum ultraviolet pulses from a HHG source so that also experiments at significantly higher pump fluences will become possible. In this fluence regime we expect to be able to trigger also structural phase transitions in the adsorbate layer.
基于低能光电子的衍射,我们的目标是证明和应用一个新的实验概念,在表面的超快结构动力学的研究与亚100 fs的时间分辨率。除了结构信息之外,检测到的瞬态光电发射信号将同时携带关于所涉及的表面电子系统的激发和弛豫的信息,潜在地允许表面处的结构和载流子动力学的直接相关。 在我们的研究中,我们将集中在酞菁分子在贵金属表面的亚单层吸附。独特的低能量光电子衍射图案,已被报道为不同的代表,这种吸附物表面系统在静态ARPES实验代表了一个理想的试验台,用于检查的能力和所提出的概念的局限性。此外,我们预计,结构和载体动力学的组合审讯可以揭示新的光到复杂的相互作用机制,这种金属-有机界面类的多方面性能。两种不同的实验配置将在该项目中实现和测试:在使用70 fs的NUV激光脉冲(6 eV)的探测光电子的产生,我们将能够探测结构和载流子动力学的最终时间分辨率低于100 fs。然而,Ekin < 2 eV的光电子的固有非常低的动能将限制我们的研究,由于泵浦诱导的寄生电子发射产生的信号背景,小和中等的泵浦注量。在另一种配置中,我们将使用来自HHG源的18 eV真空紫外脉冲,这样在显著更高的泵浦注量下的实验也将成为可能。在这种注量制度,我们希望能够触发也在吸附层的结构相变。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Professor Dr. Michael Bauer其他文献
Professor Dr. Michael Bauer的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Professor Dr. Michael Bauer', 18)}}的其他基金
Time-resolved studies of ultrafast electronic processes in two-dimensional solids in the strongly non-thermal regime
强非热状态下二维固体超快电子过程的时间分辨研究
- 批准号:
389191527 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants
Jena Biophotonic and Imaging Laboratory
耶拿生物光子和成像实验室
- 批准号:
284067622 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Core Facilities
Ultrakurzeitdynamik von Ordnungsprozessen in stark korrelierten Festkörpern untersucht mit zeit- und winkelaufgelöster XUV-Photoelektronenspektroskopie
利用时间和角度分辨 XUV 光电子能谱研究高度相关固体中有序过程的超快动力学
- 批准号:
210740373 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Research Grants
Heme and heme degradation products as effectors of hepatic perfusion and excretion failure
血红素和血红素降解产物作为肝灌注和排泄失败的效应物
- 批准号:
214875369 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Research Units
Early cognitive behavioural psychotherapy in subjects at high risk for bipolar affective disorders (Acronym: EarlyCBT)
对双相情感障碍高危人群进行早期认知行为心理治疗(缩写:EarlyCBT)
- 批准号:
130211207 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Clinical Trials
Femtosecond dynamics and control of metal-organic hybrid plasmonic systems
金属有机混合等离子体系统的飞秒动力学和控制
- 批准号:
138207511 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Priority Programmes
Exploring electron-phonon interactions and coherent-phonon control of quantum materials using frequency-domain ARPES
使用频域 ARPES 探索量子材料的电子-声子相互作用和相干声子控制
- 批准号:
499426961 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
Time-resolved ARPES of solids – entering the strong-field regime
固体的时间分辨 ARPES â 进入强场状态
- 批准号:
465690255 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
相似海外基金
Low-Rank Functional Data Analysis for Time-Resolved Spectroscopy and the Search for Earth-Like Exoplanets
时间分辨光谱的低阶函数数据分析和类地系外行星的搜索
- 批准号:
2210790 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Standard Grant
Low Temperature Time-Resolved Photoluminescence System for Visible, Near- and Short-Wavelength Infrared
用于可见光、近波长和短波长红外的低温时间分辨光致发光系统
- 批准号:
RTI-2021-00662 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Research Tools and Instruments
Low noise, high-throughput, time-resolved single-photon sensor for quantum applications
适用于量子应用的低噪声、高通量、时间分辨单光子传感器
- 批准号:
103872 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Collaborative R&D
Low noise, high-throughput, time-resolved single-photon sensor for quantum applications
适用于量子应用的低噪声、高通量、时间分辨单光子传感器
- 批准号:
EP/R020981/1 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grant
Spin Detector for low-temperature ARPES and time-resolved studies of quantum materials
用于低温 ARPES 和量子材料时间分辨研究的自旋探测器
- 批准号:
RTI-2016-00105 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Research Tools and Instruments
Study of photo-induced electron spin transfer with time-resolved micro Kerr rotation measurement under low temperature and high magnetic field
低温强磁场下光生电子自旋转移时间分辨微克尔旋转测量研究
- 批准号:
24540315 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of microfluidic mixer for time-resolved spectroscopy applicable to low-yield biomolecules
开发适用于低产量生物分子的时间分辨光谱微流体混合器
- 批准号:
23687022 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Young Scientists (A)
Development of time-and space-resolved low frequency Raman spectroscopy and elucidation of melting processes of ionic liquids
时间和空间分辨低频拉曼光谱的发展以及离子液体熔化过程的阐明
- 批准号:
21245005 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (A)
Theoretical study of time-resolved photoemission spectroscopy for low-dimensional electron-phonon system
低维电子声子系统时间分辨光电子能谱理论研究
- 批准号:
21740222 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Young Scientists (B)
Real Time Observation of Surface Chemical Reaction by Nonlinear Spectroscopy
非线性光谱实时观察表面化学反应
- 批准号:
16072208 - 财政年份:2004
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas