Presentation
18 June 2024 Modelization of photo-induced thermal processes in multilayer coatings with optical tools
Paul Rouquette, Claude Amra, François Thullier, Gabriel Soriano, Michel Lequime, Helene T. Krol, Myriam Zerrad
Author Affiliations +
Abstract
Photo-induced thermal phenomena are omnipresent in precision optical systems. Interferential filters are subjected to optical powers that are weakly absorbed but lead to temperature rises that can alter system performance: spectral drift, wave-front modification, damage, etc. In addition, absorption processes lead to heat transfers by conduction, radiation and convection that are important to predict or control. In this context, we have developed a comprehensive model dedicated to photo-induced thermal phenomena in interference filters, with the particularity that these models are developed and implemented with the same tools commonly used to address optical properties in thin films. These results lead us to address a number of inverse problems concerning the determination of thermal parameters or imaginary indices of thin-film materials, as well as the control of thermal radiation. Also, we investigate the detail of thermal energy transferred to the guided modes of a multilayer.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul Rouquette, Claude Amra, François Thullier, Gabriel Soriano, Michel Lequime, Helene T. Krol, and Myriam Zerrad "Modelization of photo-induced thermal processes in multilayer coatings with optical tools", Proc. SPIE PC13020, Advances in Optical Thin Films VIII, PC130200B (18 June 2024); https://doi.org/10.1117/12.3023029
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KEYWORDS
Inverse optics

Optical coatings

Multilayers

Thermal modeling

Thermography

Optical properties

Systems modeling

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