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Proceedings Paper

Generalized two-temperature fitting algorithm for ultrashort laser heating of metal film and nanoparticles (Conference Presentation)
Author(s): Paul Bresson; Jean-François Bryche; Julien Moreau; Paul-Ludovic Karsenti; Mondher Besbes; Denis Morris; Paul Charette; Michael Canva

Paper Abstract

Few studies in literature have try to quantitatively compare the 2T model with experimental data at very short time scale and study the dependency and importance of model’s parameters. We have developed a new numerical model and fitting algorithm which combined the 2T model, thermal conduction and 3D FEM EM code to link the spatial distribution of temperature to the optical reflectivity of the sample. Using a state-of-the-art pump-probe setup allowing the acquisition of the full spectro-temporal optical response of the sample, we have compared measurements on thin gold films and array of nanostructures with our model.

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11278, Ultrafast Phenomena and Nanophotonics XXIV, 1127814 (10 March 2020); doi: 10.1117/12.2545328
Show Author Affiliations
Paul Bresson, Lab. Nanotechnologies Nanosystemes (LN2) (Canada)
Lab. Charles Fabry (France)
Jean-François Bryche, Lab. Nanotechnologies Nanosystemes (LN2) (Canada)
Julien Moreau, Lab. Charles Fabry (France)
Paul-Ludovic Karsenti, Université de Sherbrooke (Canada)
Mondher Besbes, Lab. Charles Fabry (France)
Denis Morris, Lab. Nanotechnologies Nanosystemes (LN2) (Canada)
Paul Charette, Lab. Nanotechnologies Nanosystemes (LN2) (Canada)
Michael Canva, Lab. Nanotechnologies Nanosystemes (LN2) (Canada)

Published in SPIE Proceedings Vol. 11278:
Ultrafast Phenomena and Nanophotonics XXIV
Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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