Optically printed metallic nanoparticles as nano‐sources of heat

ZAZA, CECILIA; GARGIULO, JULIÁN; VIOLI, IANINA L.; YOON JUN; SCHUMACHER, LUDMILLA; KONIG MATHIAS; SCHLÜCKER, SEBASTIAN; STEFANI, FERNANDO D.; MAIER, STEFAN A.

Porquerolles

Workshop; PHOTOTHERMAL EFFECTS IN PLASMONICS; 2018

Metallic nanoparticles (NPs) present enhanced light absorption when illuminated at its plasmonic resonance, therefore producing light-controlled heat.Optical printing employs optical forces for the assembly of individual NPs in determined positions of a substrate with nanometric precision and with great flexibility in patterns design[1]. The illumination of these NPs arrangements could then produce complex temperature fields which can be employed in several applications, from enhanced nanocatalysis to optofluidics.One of the most difficult challenges in such systems is to properly calibrate and characterize the produced temperature fields with high spatial accuracy, which is not possible using conventional electric methods. Here, we will present our efforts to quantify temperature increases at the single particle level using photoluminescence emission from printed particles.