Fig. 2: Molecular-frame angle-resolved photoelectron spectra of OCS.
From: Setting the photoelectron clock through molecular alignment
These data were obtained a–c experimentally and computationally from d–f TDDFT and g–i ADK-SM calculations. a, d, g Split graphical representation as a comparison of the photoelectron distributions for parallel and perpendicular alignment for the experimental and computational results, respectively. b, e, h Corresponding projected energy distributions of photoelectrons along the Y axis, angularly integrated within a cone of ±20°, as well as the ratio of the integral-normalised perpendicular and parallel distributions, on logarithmic scales. Energies are reported in units of the ponderomotive energy Up. c, f, i First derivatives of the photoelectron-energy distributions to evaluate the high-energy cut-off for the two molecular-alignment cases. All TDDFT computational results were obtained by averaging over different laser-molecule orientations according to the experimental alignment distributions and by adding a constant to account for the experimental background level. The ADK-SM results refer to a single laser intensity and perfect alignment for both cases. See Supplementary Note 2 for details.
