Fig. 1: CEP-dependent charge generation in nanoantenna arrays.
From: On-chip petahertz electronics for single-shot phase detection
a Schematic of the charge generation process in the network showing two electric fields with a π CEP shift corresponding to charge generated with positive Q(φ = 0) or negative sign Q(φ = π). b Optical microscope image of an integrated nanoantenna network contacted with gold leads. c Scanning electron microscope image of a metallic nanoantenna array. d Finite-element method simulation using COMSOL of the spatial field enhancement distribution of a single antenna pair. e Schematic of the nanoscopic emission process, showing the sub-cycle electron currents generated in the antenna-vacuum junction by the driving field.
