par Ludvik Martinu
Laboratoire des revêtements fonctionnels et d’ingénierie des surfaces - LaRFIS
Département de génie physique, École Polytechnique de Montréal, Québec, Canada
Groupe de physique et technologie des couches minces – GCM
Regroupement québécois sur les matériaux de pointe - RQMP
Résumé
Optical coating (OC) applications represent a multibillion dollar market worldwide ; they range from antireflective (AR) coatings found in most optical components and low emissivity windows in buildings and automobiles to narrowband optical interference filters used in telecommunications. Most OCs in use today are passive devices formed by stacking dielectric or metallic layers with linear and isotropic optical properties. As the range of applications of
OCs continuously broadens and extremely attractive market opportunities arise, it is becoming increasingly important to develop new thin film materials with specific multifunctional properties, and to predict and optimize the functional performance of the thin film devices including their mechanical, tribological, electrical, barrier, thermal and other characteristics, as well as their smart (active) properties and long term environmental stability.
This presentation will summarize the most recent trends in the optical thin films including different aspects of the process, materials and coating system performance illustrated by the work from our Functional Coating and Surface Engineering Laboratory [FCSEL-LaRFIS] at the École Polytechnique de Montréal. Particular emphasis will be given to the understanding of the film growth using pulsed plasma-based techniques and modulated ion bombardment effects. Specific examples of the discrete and graded OC designs, process control strategies, and performance assessment will include optical security interference structures for the protection of banknotes and precious documents, OC on plastics such as in ophthalmic lenses, smart radiators for the thermal control in satellites, optical thin film sensors, as well as wearand
corrosion resistant decorative coatings.
Ludvik MARTINU est Professeur à l’École Polytechnique de Montréal, Directeur du Functional Coating and Surface Engineering Laboratory (FCSEL-LaRFIS), Directeur associé du Thin Film Research Center situé sur le campus de l’Université de Montréal et membre du Comité Exécutif du Quebec Consortium on Advanced Materials. Il est l’auteur de plus de 170 articles dans des Revues internationales à comité de lecture et de 17 chapitres d’ouvrages. Il séjourne à l’Institut Fresnel du 25 janvier au 10 avril 2011 à l’invitation de l’École Centrale Marseille et de l’équipe RCMO.
Ses thématiques de recherche concernent la physique et la technologie des couches minces, et en particulier le développement de nouveaux procédés de dépôt à assistance plasma et de matériaux nanostructurés.
Invitation : Michel Lequime (RCMO)
ResearchGate
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