SPIE Nanoscience + Engineering – 9 August 2017 –  San Diego, California United States
Title: “Tunable coupling between exciton-polariton and exciton-surface plasmon in hybrid systems consisting of VO2 nanoparticles and quantum dots”

Abstract: Vanadium dioxide (VO2) features a semiconductor to metal phase change characteristic that leads to an abrupt change in the particle’s optical properties. A hybrid system consisting of semiconductor quantum dot (SQD) and vanadium dioxide nanoparticle (VO2NP) can support the coherent coupling of exciton-polaritons and exciton-plasmon polaritons in the semiconductor and metal phases of the VO2NP, respectively. In this talk, we theoretically show that the controlling over the VO2NP phase change transition alters the SQD optical response drastically in comparison to a bare SQD. The results can be applied to the design of thermal sensors at the nanoscale.