THz-induced Insulator-to-Metal Transition in Stacked VO2 Nano-slits

We study the nonlinear, field dependent properties of stacked nano-slit array structures. Specifically, by measuring the field dependent THz transmission, we are able to resolve the insulator-to-metal transition of VO 2 embedded in nano-slits. 2D simulations support the experimental data and allow for the calibration of the enhanced THz fields in the nano-slit volume.