Time-resolved ionization measurements with intense ultrashort XUV and X-ray free-electron laser pulses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00509928" target="_blank" >RIV/61389021:_____/19:00509928 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/19:00508010

Výsledek na webu

<a href="https://www.cambridge.org/core/journals/laser-and-particle-beams/article/timeresolved-ionization-measurements-with-intense-ultrashort-xuv-and-xray-freeelectron-laser-pulses/9842AF22948A177B1FB011E70A00F677" target="_blank" >https://www.cambridge.org/core/journals/laser-and-particle-beams/article/timeresolved-ionization-measurements-with-intense-ultrashort-xuv-and-xray-freeelectron-laser-pulses/9842AF22948A177B1FB011E70A00F677</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S0263034619000326" target="_blank" >10.1017/S0263034619000326</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Time-resolved ionization measurements with intense ultrashort XUV and X-ray free-electron laser pulses

Popis výsledku v původním jazyce

Modern free-electron lasers (FEL) operating in XUV (extreme ultraviolet) or X-ray range allow an access to novel research areas. An example is the ultrafast ionization of a solid by an intense femtosecond FEL pulse in XUV which consequently leads to a change of the complex index of refraction on an ultrashort timescale. The photoionization and subsequent impact ionization resulting in electronic and atomic dynamics are modeled with our hybrid code XTANT(X-ray thermal and non-thermal transitions) and a Monte Carlo code XCASCADE(X-ray-induced electron cascades). The simulations predict the temporal kinetics of FEL-induced electron cascades and thus yield temporally and spatially resolved information on the induced changes of the optical properties. In a series of experiments at FERMI and LCLS, single shot measurements with spatio-temporal encoding of the ionization process have been performed by a correlation of the FEL pump pulse with an optical femtosecond probe pulse. An excellent agreement between the experiment and the simulation has been found. We also show that such kind of experiments forms the basis for pulse duration and arrival time jitter monitoring as currently under development for XUV-FELs.

Název v anglickém jazyce

Time-resolved ionization measurements with intense ultrashort XUV and X-ray free-electron laser pulses

Popis výsledku anglicky

Modern free-electron lasers (FEL) operating in XUV (extreme ultraviolet) or X-ray range allow an access to novel research areas. An example is the ultrafast ionization of a solid by an intense femtosecond FEL pulse in XUV which consequently leads to a change of the complex index of refraction on an ultrashort timescale. The photoionization and subsequent impact ionization resulting in electronic and atomic dynamics are modeled with our hybrid code XTANT(X-ray thermal and non-thermal transitions) and a Monte Carlo code XCASCADE(X-ray-induced electron cascades). The simulations predict the temporal kinetics of FEL-induced electron cascades and thus yield temporally and spatially resolved information on the induced changes of the optical properties. In a series of experiments at FERMI and LCLS, single shot measurements with spatio-temporal encoding of the ionization process have been performed by a correlation of the FEL pump pulse with an optical femtosecond probe pulse. An excellent agreement between the experiment and the simulation has been found. We also show that such kind of experiments forms the basis for pulse duration and arrival time jitter monitoring as currently under development for XUV-FELs.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Laser and Particle Beams

ISSN

0263-0346

e-ISSN

—

Svazek periodika

37

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

235-241

Kód UT WoS článku

000472763400011

EID výsledku v databázi Scopus

2-s2.0-85064914723