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

Summary:

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