INVESTIGADORES
KUNIK Dario
artículos
Título:
Photothermal Microscopy
Autor/es:
ZALDIVAR FAUNDO; DARÍO KUNIK; OSCAR E. MARTÍNEZ; NELIDA MINGOLO
Revista:
Procedia Materials Science
Editorial:
Elsevier
Referencias:
Año: 2014
ISSN:
2211-8128
Resumen:
An accessory for a commercial optical microscope was implemented to map the thermal diffusivity of the sample with highspatial resolution. The system is based in the photothermal technique recently developed by the group. It consists in themeasurement with a probe laser of the surface curvature induced by the heat delivered by a modulated pump laser. A lock-indetection technique provides the signal amplitude and phase as a function of the modulation frequency. The accessory wasmounted on the camera port of a metallographic microscope Olympus BX51. Results obtained on different samples arepresented.
