Systems for tunable nanocube plasmonic resonators and methods for forming

A tunable plasmonic resonator system, comprising:

• a substrate, wherein the substrate includes a semiconductor material having a carrier density distribution,
• an array of plasmonic resonators comprising an array of nanostructures positioned on a surface of the substrate;
• and
• a plurality of junctions formed between each of the array of nanostructures and the substrate forming a plurality of Schottky junctions;
• wherein changing the carrier density distribution of the semiconductor material tunes a plasmonic response of at least one plasmonic resonator in the array of plasmonic resonators.

A tunable plasmonic resonator system, comprising:

• a substrate, wherein the substrate includes a semiconductor material having a carrier density distribution;
• a nanostructure coupled to the substrate;
• and
• a dielectric layer positioned between the substrate and the nanostructure;
• wherein a plasmonic response of the nanostructure is variable based on varying the carrier density distribution of the semiconductor material.