Mechanism of single-shot damage of Ru thin films irradiated by femtosecond extreme UV free-electron laser

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10377900" target="_blank" >RIV/00216208:11320/18:10377900 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/18:00492824 RIV/61389021:_____/18:00500161

Výsledek na webu

<a href="https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-15-19665" target="_blank" >https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-15-19665</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OE.26.019665" target="_blank" >10.1364/OE.26.019665</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanism of single-shot damage of Ru thin films irradiated by femtosecond extreme UV free-electron laser

Popis výsledku v původním jazyce

Ruthenium is a perspective material to be used for XUV mirrors at free-electron laser facilities. Yet, it is still poorly studied in the context of ultrafast laser-matter interaction. In this work, we present single-shot damage studies of thin Ru films irradiated by femtosecond XUV free-electron laser pulses at FLASH. Ex-situ analysis of the damaged spots, performed by different types of microscopy, shows that the weakest detected damage is surface roughening. For higher fluences we observe ablation of Ru. Combined simulations using Monte-Carlo code XCASCADE(3D) and the two-temperature model reveal that the damage mechanism is photomechanical spallation, similar to the case of irradiating the target with optical lasers. The analogy with the optical damage studies enables us to explain the observed damage morphologies.

Název v anglickém jazyce

Mechanism of single-shot damage of Ru thin films irradiated by femtosecond extreme UV free-electron laser

Popis výsledku anglicky

Ruthenium is a perspective material to be used for XUV mirrors at free-electron laser facilities. Yet, it is still poorly studied in the context of ultrafast laser-matter interaction. In this work, we present single-shot damage studies of thin Ru films irradiated by femtosecond XUV free-electron laser pulses at FLASH. Ex-situ analysis of the damaged spots, performed by different types of microscopy, shows that the weakest detected damage is surface roughening. For higher fluences we observe ablation of Ru. Combined simulations using Monte-Carlo code XCASCADE(3D) and the two-temperature model reveal that the damage mechanism is photomechanical spallation, similar to the case of irradiating the target with optical lasers. The analogy with the optical damage studies enables us to explain the observed damage morphologies.

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Optics Express

ISSN

1094-4087

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

26

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

19665-19685

Kód UT WoS článku

000439472400076

EID výsledku v databázi Scopus

2-s2.0-85051818917