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Laser optics in space failure risk due to laser induced contamination

Kokkinos, Dimitris and Schroeder, Helmut and Fleury‑Frenette, K. and Georges, M. P. and Riede, Wolfgang and Tzeremes, Georgios and Rochus, P. (2017) Laser optics in space failure risk due to laser induced contamination. CEAS Space Journal, 9, pp. 153-162. Springer. DOI: 10.1007/s12567-016-0137-1 ISSN 1868-2502

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Abstract

In this paper, a study of the evolution and morphology of UV laser-induced contamination (LIC) on optical surfaces due to hydrocarbons will be presented. LIC is a major hazard for lasers that operate in vacuum conditions. Recent studies have shown that the manufacturing method and cleaning of optical components can significantly mitigate LIC growth but never stop it completely. To better understand and model the evolution of LIC the deposition rate and transmission decay were observed via a CCD camera that measured laser induced fluorescence (LIF) and energy detectors, respectively. The affected sites were observed using Atomic Force Microscopy (AFM) and Phase Shift Interferometry (PSI). The LIC affected area diameters obtained by different experimental conditions were then compared with the theoretical prediction derived by the model. Very good agreement between this empirical model and the experimental results was found for the relevant parameter regimes under investigation. A novel methodology to determine the possibility of permanent optical damage due to LIC produced thermal effects is also discussed.

Item URL in elib:https://elib.dlr.de/114884/
Document Type:Article
Title:Laser optics in space failure risk due to laser induced contamination
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kokkinos, DimitrisUNSPECIFIEDUNSPECIFIED
Schroeder, Helmuthelmut.schroeder (at) dlr.deUNSPECIFIED
Fleury‑Frenette, K.UNSPECIFIEDUNSPECIFIED
Georges, M. P.UNSPECIFIEDUNSPECIFIED
Riede, Wolfgangwolfgang.riede (at) dlr.deUNSPECIFIED
Tzeremes, GeorgiosEuropean Space Agency (esa/estec)UNSPECIFIED
Rochus, P.Université de LiègeUNSPECIFIED
Date:June 2017
Journal or Publication Title:CEAS Space Journal
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:9
DOI :10.1007/s12567-016-0137-1
Page Range:pp. 153-162
Publisher:Springer
ISSN:1868-2502
Status:Published
Keywords:Laser-induced contamination, Laser-induced damage, Hydrocarbon contamination, UV enhanced deposition
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Schröder, Dr.rer.nat. Helmut
Deposited On:28 Nov 2017 11:00
Last Modified:28 Nov 2017 11:00

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