Plasmonic nanoparticles (NPs) are particularly efficient converters of light into heat, making them useful as remote-controlled nanometric sources of heat in numerous applications. However, measuring the temperature of a NP under illumination is not a simple task.
In our recent paper in ACS Nano, we present a nanothermometry method based on anti-Stokes photoluminescence emission. Acquiring a hyperspectral confocal image we can obtain the photothermal coefficient of single nanoparticles (NPs) and estimate their temperature increase when they are being irradiated.
This work was a great collaboration with many friends, from the groups of Prof. Stefan Maier (LMU Munich), Prof. Guillermo Acuna (Uni Fribourg, Switzerland), and Prof. Diego Pallarola (UNSAM, Buenos Aires).
“In Situ Photothermal Response of Single Gold Nanoparticles Through Hyperspectral Imaging Anti-Stokes Thermometry”
Mariano Barella, Ianina L. Violi, Julian Gargiulo, Luciana P. Martinez, Florian Goschin, Victoria Guglielmotti, Diego Pallarola, Sebastian Schlücker, Mauricio Pilo-Pais, Guillermo P. Acuna, Stefan A. Maier, Emiliano Cortes, Fernando D. Stefani
