Intense attoscience: A new frontier in ultrafast research - Relativistic plasmas and high harmonic generation

密集的原子科学：超快研究的新前沿——相对论等离子体和高次谐波的产生

• 批准号: EP/H003592/1
• 负责人: Brendan Hugh Dromey
• 金额: $ 115.95万
• 依托单位: Queen's University Belfast
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2009
• 资助国家: 英国
• 起止时间: 2009 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FH003592%2F1
• 关键词: Intense; attoscience; new; frontier; ultrafast

Probing ultrashort processes allows researchers to understand the dynamics of the microcosm. To investigate processes that occur on the fastest timescales, probes on the duration of attoseconds are required. Coherent laser-driven X-rays from gaseous media has fuelled the nascent field of attosecond research to date. However, these sources are limited in the photon energy and flux that can readily be achieved. With the advent of few laser cycle Terawatt/Petawatt (10^12-10^15W) systems however, a new age in ultrafast/atto-science is dawning, based on coherent X-rays generated from relativistically oscillating mirrors (ROM), which are created when an ultra-intense pulse is focused onto a solid target. The coherent X-rays that are generated from ROM have/are predicted to have excellent properties when compared with those generated in gases: high efficiency, shortest pulses and excellent focusability. In addition they are ideally suited to exploit lasers with high pulse energies - resulting in an XUV photon flux per pulse that is many orders of magnitude higher than to date. The principle aim of this proposal is to coherently harness the relativistic plasma medium and the demonstrate first applications of the resulting ultra-intense XUV pulses. Such advances will permit researchers access to a source that can combine the high photon flux available at large accelerator based XUV/X-ray sources with the attosecond duration of laser based XUV sources, opening completely new avenues of research.

探测超短过程使研究人员可以理解缩影的动力学。为了调查在最快时间尺度上发生的过程，需要在attoseconds的持续时间内进行探针。来自气态介质的连贯激光驱动的X射线驱动了迄今为止的新生研究领域。但是，这些来源的光子能量和通量很容易实现。但是，随着几个激光循环Terawatt/Petawatt（10^12-10^15W）系统的出现，但是，根据相对性振荡的镜（ROM）产生的相干X射线（ROM），超快/Atto科学的新时代正在下降，当超稳态脉搏集中在固体目标上时产生。与气体产生的相比，从ROM产生的相干X射线具有出色的特性：高效率，最短的脉冲和出色的聚焦性。另外，它们非常适合利用脉冲能高的激光器 - 导致每个脉冲的XUV光子通量，比迄今为止高许多数量级。该提案的主要目的是连贯利用相对论的血浆介质，并证明了所得的超强XUV脉冲的首次应用。这样的进步将使研究人员可以进入可以将基于大加速器/X-ray源的高光子通量与基于激光的XUV源的持续时间结合使用的源，从而打开了全新的研究途径。

项目成果

Ultrafast opacity in borosilicate glass induced by picosecond bursts of laser-driven ions

激光驱动离子皮秒爆发引起硼硅酸盐玻璃的超快不透明性

• DOI: 10.48550/arxiv.1412.1327
• 发表时间: 2014
• 作者: Dromey B

Coherent synchrotron emission from electron nanobunches formed in relativistic laser-plasma interactions

• DOI: 10.1038/nphys2439
• 发表时间: 2012-11-01
• 期刊: NATURE PHYSICS
• 影响因子: 19.6
• 作者: Dromey, B.;Rykovanov, S.;Hegelich, B. M.
• 通讯作者: Hegelich, B. M.

Picosecond metrology of laser-driven proton bursts.

• DOI: 10.1038/ncomms10642
• 发表时间: 2016-02-10
• 期刊: Nature communications
• 影响因子: 16.6
• 作者: Dromey B;Coughlan M;Senje L;Taylor M;Kuschel S;Villagomez-Bernabe B;Stefanuik R;Nersisyan G;Stella L;Kohanoff J;Borghesi M;Currell F;Riley D;Jung D;Wahlström CG;Lewis CL;Zepf M
• 通讯作者: Zepf M

Strong coupling of light goes nuclear

光的强耦合进入核

• DOI: 10.1038/nphoton.2016.100
• 发表时间: 2016
• 期刊: Nature Photonics
• 影响因子: 35
• 作者: Dromey B