Journal
PHYSICAL REVIEW B
Volume 102, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.102.155127
Keywords
-
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- French doctoral contract (MESRI)
- Universite Paris-Saclay
- Fonds de recherche du Quebec-Nature et technologies (FRQNT)
- FRQNT
- [273433]
Ask authors/readers for more resources
In this work, a pump-probe experiment is used to study the ultrafast dynamics of heat transfer in thin gold films and gold nanostructures on glass substrates, following local heating by ultrashort laser pulses. Full spectrotemporal differential reflectivity and transmission maps were obtained for different film thicknesses (30, 50, 80, 150, and 200 nm) and different laser fluences (0.38 to 9.5 Jm(-2)). For arrays of gold nanorods, the two orthogonal probe polarizations were also acquired. We propose an improved model for these phenomena based on a modified two-temperature model that integrates thermal conduction and the three-dimensional finite element method model to link the spatiotemporal temperature maps to the spectrotemporal optical response maps. The impact of an underlying titanium adhesion layer is reported. Excellent agreement between numerical and experimental data for both the gold films and the nanostructures is shown.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available