Raw experimental data for Figure 4. Format: pairs of wavelength (nm), photon counts File naming system: In article, label "Sample 1" refers to sample PSi350, label "Sample 2" refers to PSi34. Temperature is 1.5K in all cases (included in some filenames); Acquisition time is 1s or 10s as indicated in file names; Magnetic field is indicated in filenames either as 1,5T (meaning 1.5 Tesla) or 1T5 (meaning the same); Level of exposure to oxygen is indicated in the collective ZIP file name