Heatmap from Scientific Research

The top row of panels show the measured photoemission momentum maps of the +1 h Ω sideband (E – EF = 0.63 eV, Δt = 0 fs). As the polarization of the IR pulses (double-headed arrows in the inset) is rotated to Φ = 90° + 4° = 94°, the spectral weight becomes more intense for + ky (horizontal arrows in the bottom panels).

DOI