Circuit Model for Nanoscale Optical Frequency Electronics

We developed a simple lumped-element circuit model for a resonant vacuum nanoantenna driven by beyond 100 THz optical excitations. The circuit model was implemented in SPICE for fast, easy, and accessible simulation of integrated optical-frequency-nanoantenna circuits. We also designed and simulated an ultrafast memory cell with read and write functions. Our work demonstrates that vacuum nanoantennas can enable logic and memory operations at beyond 100 THz frequencies.