Thermo-plasmonics in self-organized materials

L. De Sio, T. Placido, R. Comparelli, L. Curri, N. Tabiryan, T. Bunning
Beam Engineering for Advanced Measurements Company, US

Keywords: soft matter, plasmonic nanoparticles, photothermal heating


Conversion of near infrared radiation into heat, controlled at the nanoscale, is achieved and detected by exploiting the localized plasmonic resonance (LPR) of gold nanorods (GNRs) trapped in thermosensitive self-organized materials such as Liquid Crystals (LCs). The localized heating from the nanosources induces a modification in the alignment of the surrounding medium; this induces a variation of the LCs properties and modifies the spectral position of the LPR of GNRs