나노구조광소자 연구실

We are developing ultra-fast electrically-tunable plasmonic metasurfaces based on coupling of plasmonic resonances in metallic nanostructures with intersubband transitions in multiple-quantum-well (MQW) structures. The MQW structure is designed to have a diagonal transition in real space, allowing for voltage-tunable intersubband transition energies through the Quantum-confined Stark effect. In this configuration, the absorption spectra of the metasurface under normal incidence of light can be changed according to the voltage bias. We are developing ultra-fast electrically-tunable plasmonic metasurfaces based on coupling of plasmonic resonances in metallic nanostructures with intersubband transitions in multiple-quantum-well (MQW) structures. We are developing highly-nonlinear metasurfaces based on coupling of electromagnetically-engineered plasmonic nanoresonators with quantum-engineered intersubband nonlinearities.