Ultrafast beam dump materials and mirror coatings tested with the ELI beamlines LIDT test station

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00470422" target="_blank" >RIV/68378271:_____/15:00470422 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2194970" target="_blank" >http://dx.doi.org/10.1117/12.2194970</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2194970" target="_blank" >10.1117/12.2194970</a>

Result language

angličtina

Original language name

Ultrafast beam dump materials and mirror coatings tested with the ELI beamlines LIDT test station

Original language description

The ELI Beamlines project will deliver ultrafast laser pulses with peak powers up to 10PW available every minute and PW class beams at 10Hz complemented by a 10TW 1kHz beamline. To properly determine damage thresholds of involved optical components in conditions similar to the operational environment and with expected laser parameters, a high vacuum LIDT test station was constructed at PALS facility. Our study presents results of ISO based S-on-1 and R on 1 tests in femtosecond regime (50fs, 800nm, 10Hz/1kHz) performed on two different types of coatings: a) high-absorption black coatings with low outgassing rates, intended for use as a beam dump surface; and b) high-reflectivity, low-dispersion 45° AOI ultrafast mirror coatings. Testing of absorptive coatings was accompanied with QMS residual gas analysis to verify, that high intensity laser radiation approaching the damage threshold does not increase concentration of volatile organic compounds in the vacuum chamber. In case of HR mirror coatings, we also investigate the effect of cleaning on LIDT value, comparing characteristic S-on-1 curves of given sample with values obtained after 12h immersion in ethanol-water solution.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/ED1.1.00%2F02.0061" target="_blank" >ED1.1.00/02.0061: ELI: EXTREME LIGHT INFRASTRUCTURE</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Article name in the collection

Laser-Induced Damage in Optical Materials

ISBN

978-162841832-3

ISSN

0277-786X

e-ISSN

—

Number of pages

12

Pages from-to

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Publisher name

SPIE

Place of publication

Bellingham

Event location

Boulder

Event date

Sep 27, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000373355700031