Thermal and elastic characterizations by photothermal microscopy (invited)

Julien Jumel (1) , Denis Rochais (2) , Franck Enguehard (2) , François Lepoutre (1)

1 ONERA - The French Aerospace Lab [Châtillon]
2 CEA Le Ripault - CEA Le Ripault

A photothermal microscope based on photoreflectance and interferometric techniques is used to measure, on the same field, the thermal properties and the thermoelastic response of samples heated by a focused intensity modulated laser beam. In imaging mode, this instrument provides two-dimensional thermal or mechanical qualitative maps. In characterization configuration thermal and thermoelastic properties, with resolutions of a few micrometers, can be quantitatively measured if careful analysis of the signals is made.

Domaines: Thermique [physics.class-ph]

Julien Jumel, Denis Rochais, Franck Enguehard, François Lepoutre. Thermal and elastic characterizations by photothermal microscopy (invited). Review of Scientific Instruments, 2002, 74 (1), pp.608-611. ⟨10.1063/1.1523136⟩. ⟨hal-01287447⟩