Fig. 6
From: Attosecond coherent control of free-electron wave functions using semi-infinite light fields
Attosecond-nanometer modulation of plasmonic near-fields. a Energy-filtered image of the plasmonic interference pattern created in the designed plasmonic Fabry–Perot resonator. The tilt angles are set to ϑ = 0° and α = 12.9°, while the optical pulses are 60 fs long. b Spatiotemporal mapping of the plasmonic coherent control at attosecond-nanometer scale. c Measured temporal modulation of the plasmon-mode amplitude. d Fourier transform of the measured temporal trace
