%%%Manuscript Dataset%%% Title: "An all-dielectric metasurface polarimeter" Author(s): Shah, Yash; Dada, Adetunmise; Grant, James; Cumming, David; Altuzarra, Charles; Nowack, Thomas; Lyons, Ashley; Clerici, Matteo; Faccio, Daniele DOI: https://doi.org/10.1021/acsphotonics.2c00395 The data in this set are organised into the following folders: "Figure 2" folder: This contains the data plotted in Figure 2 (a) - (i) of the manuscript. The simulation data are provided in *.mat format and the experimental data is provided in *.asc format. Experimental diffraction patterns and finite-difference time-domain (FDTD) simulations for the degenerate polarization states. @@@@@@@@@@@@@@@@@@ "Figure 3" folder: This contains the data plotted in Figure 3 (a) - (d) of the manuscript. The data is provided in Excel *.xlsx format. Using the intensity of the diffracted spots to extract the Stokes parameters and comparing with analytical Stokes’ values.