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Thermally Functionalised Optical Surfaces - 2024 Progress
Lahmaïd, Ismaël; Batlle Mari, Lucas; Vandormael, Denis et al.
2025
 

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Keywords :
Molecular contamination; Thermal degassing; Outgassing; Additive manufacturing; Smart surface; Thermoelastic behaviour; Mirrors; TiN; Micro-Heaters; IBS Process; Four-terminal sensing; Interferometric microscopy
Abstract :
[en] In-flight recondensation of outgassing molecular species from a satellite platform or payloads could compromise the performance of onboard optical instruments. In our group, we investigate alternative ways to circumvent this issue through thermally functionalised optical surfaces. Micro-heating systems directly integrated within the surface of optical components offer the potential to increase power efficiency as well as heat transfer homogeneity in degassing molecular contaminations. Preliminary models of such heating systems are under development and the investigation of manufacturing processes has been initiated.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Lahmaïd, Ismaël ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Batlle Mari, Lucas ;  Université de Liège - ULiège > Faculté des Sciences > Master sc. spatiales, fin approf.
Vandormael, Denis
François, Arnaud
Delannay, Laurent;  UC Louvain > Materials and Civil Engineering > Institute of Mechanics
Fleury-Frenette, Karl ;  Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège) ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Language :
English
Title :
Thermally Functionalised Optical Surfaces - 2024 Progress
Publication date :
07 February 2025
Event name :
PhD Day 2025 Space4Relaunch
Event organizer :
Space4Relaunch
Event place :
Bruxelles, Belgium
Event date :
07/02/2025
Funders :
SPW EER - Service Public de Wallonie. Economie, Emploi, Recherche
Funding number :
2210181
Funding text :
The present research is part of the Space4ReLaunch project, which is supported by the SPW Economie Emploi Recherche of the Walloon Region, under the grant agreement nr 2210181
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since 12 May 2025

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