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Spotlight Summary for the article "Mitigation of laser-induced contamination in vacuum in high-repetition-rate high-peak-power laser systems"

Bartels, Nils (2021) Spotlight Summary for the article "Mitigation of laser-induced contamination in vacuum in high-repetition-rate high-peak-power laser systems". Optical Society of America. [Other]

Full text not available from this repository.

Official URL: https://www.osapublishing.org/spotlight/summary.cfm?id=446379

Abstract

Preventing laser-induced contamination (LIC) is key for achieving a reliable long-term operation of high-power laser systems. Modern laser systems are often operated in a vacuum environment, either to avoid non-linear effects and absorption in air (e.g. in EUV lithography) or because it is required by the specific application (e.g. for space lasers and in many scientific experiments). Unfortunately, this vacuum operation comes at a price, since it enhances the outgassing of volatile organic molecules. These molecules can be absorbed on optical surfaces and form deposits that grow upon laser-irradiation and result in a degradation of system performance. In the featured publication, Hubka et al. from the ELI beamlines in Prague share results of their efforts to mitigate LIC on optics of the Allegra laser system. They explore different cleaning methods and find that in-situ radio-frequency (RF) generated plasma etching is very beneficial for enabling a reliable system operation. The article thereby addresses many important practical aspects such as the cleaning speed and the placement of the RF plasma source. This makes the article a "must-read" for anyone facing problems from laser-induced contamination and anyone who has the wish to never face them.

Item URL in elib:https://elib.dlr.de/141438/
Document Type:Other
Title:Spotlight Summary for the article "Mitigation of laser-induced contamination in vacuum in high-repetition-rate high-peak-power laser systems"
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bartels, NilsNils.Bartels (at) dlr.deUNSPECIFIED
Date:2021
Journal or Publication Title:OSA Applied Optics
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:Optical Society of America
Status:Published
Keywords:contamination, optics, cleaning, laser
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics > Active Optical Systems
Deposited By: Bartels, Nils
Deposited On:30 Mar 2021 09:35
Last Modified:30 Mar 2021 09:35

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