Comparison of different LIDT testing protocols for PW and multi-PW class high reflectivity coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00521895" target="_blank" >RIV/68378271:_____/16:00521895 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2245182" target="_blank" >http://dx.doi.org/10.1117/12.2245182</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2245182" target="_blank" >10.1117/12.2245182</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of different LIDT testing protocols for PW and multi-PW class high reflectivity coatings

Popis výsledku v původním jazyce

Development of state-of-the-art high-power laser systems requires accurate information about the damage resistance of critical optical components. Since damage threshold fluence decreases significantly with decreasing pulse length, highpower systems based on chirped-pulse amplification are usually limited by the damage threshold of the components utilized for the final pulse compression and transport of the compressed beams. Sub-picosecond laser damage is a complex process involving various nonlinear photoionization and relaxation mechanisms, and no current theory can reliably predict damage threshold values for arbitrary combinations of laser parameters, optical coating properties, and ambient conditions. To evaluate the damage resistance of candidate high-reflectivity coatings for the distribution of compressed PW and multi-PW pulses within experimental areas of the ELI beamlines facility, a series of laser damage tests in high vacuum were conducted. In this work, we present threshold values for high-reflectance (HR) dielectric coatings tested according to different protocols in conditions specific to their operation. We compare results acquired using S-on-1, R-on-1, and Raster Scan routines for several samples and discuss their accuracy.

Název v anglickém jazyce

Comparison of different LIDT testing protocols for PW and multi-PW class high reflectivity coatings

Popis výsledku anglicky

Development of state-of-the-art high-power laser systems requires accurate information about the damage resistance of critical optical components. Since damage threshold fluence decreases significantly with decreasing pulse length, highpower systems based on chirped-pulse amplification are usually limited by the damage threshold of the components utilized for the final pulse compression and transport of the compressed beams. Sub-picosecond laser damage is a complex process involving various nonlinear photoionization and relaxation mechanisms, and no current theory can reliably predict damage threshold values for arbitrary combinations of laser parameters, optical coating properties, and ambient conditions. To evaluate the damage resistance of candidate high-reflectivity coatings for the distribution of compressed PW and multi-PW pulses within experimental areas of the ELI beamlines facility, a series of laser damage tests in high vacuum were conducted. In this work, we present threshold values for high-reflectance (HR) dielectric coatings tested according to different protocols in conditions specific to their operation. We compare results acquired using S-on-1, R-on-1, and Raster Scan routines for several samples and discuss their accuracy.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Laser-Induced Damage in Optical Materials 2016

ISBN

978-1-5106-0437-7

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

13

Strana od-do

"Roč. 10014 (2016)"

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Boulder, CO

Datum konání akce

25. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000394528400015