Fig. 3: QFIM signal and near-field waveform inside a bowtie antenna.
From: Ultrafast imaging of terahertz electric waveforms using quantum dots
a Local QFIM signal in the gap of the bowtie (blue circles) and the modeled temporal luminescence evolution (gray) based on the incident waveform. b Scaling of the peak QFIM signal (circles) as a function of the maximum incident field strength. c Comparison of the driving far-field waveform (green) and the simulated local near-field inside the bowtie gap (red). d Corresponding spectra of both waveforms shown in (c)
