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arXiv · 2606.13046

Thermal characterisation by Scanning Photothermal Radiometry using a random undersampled measurement scheme

Florian Crouau·Alejandro Mateos-Canseco·Jérémie Maire·Jean-Luc Battaglia·Stéphane Chevalier
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Abstract

Scanning Photothermal Radiometry (SPR) is an active thermal technique that is simultaneously non-destructive, contactless, and allows for temporal resolutions on the order of nanoseconds, spatial resolutions down to the sub-micrometre scale and at different depths. This scanning method can be time consuming thus this work shows that it is possible to reduce the amount of measurements taken by 6 when using SPR on a sample consisting of carbon fibres in an aluminium matrix. It uses irregular sampling on sparse signals, and a weighted random technique to further decrease the amount of samples needed.

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Florian Crouau, Alejandro Mateos-Canseco, Jérémie Maire, Jean-Luc Battaglia, Stéphane Chevalier. 2026-06-11. Thermal characterisation by Scanning Photothermal Radiometry using a random undersampled measurement scheme. https://arxiv.org/abs/2606.13046

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