Autonomous excitation transfer in quantum dot mixtures via network of optical near-field interactions at the nanoscale

We examine autonomous optical excitation transfer in mixtures of different-sized quantum dots networked via optical near-fields at the nanometer scale. We theoretically and experimentally demonstrate optical excitation transfer via the network of optical near-field interactions among quantum dots. The topology-dependent efficiency of excitation transfer is also investigated. The results of our analysis of autonomous and energy-efficient light-matter interactions at the nanoscale, called nanophotonics, will provide useful insights into the design of robust and energy-efficient information and communications systems and networks.