Light intensity in reflection mode of PAAO (2nd sample 2nd anodization)

Light intensity data recorded during the anodization of aluminum polycrystal. Light source: SLS201L/M (ThorLabs). Spectrometer: USB4000 (OceanOptics). Spectra acquisition software: SpectraSuite (OceanOptics). Integration time: 250 us. Scans to average: 10. Spectrum is recorded every 500 ms during anodization. ref.txt includes reference spectra just before the start of anodization process. Anodization was performed in 0.3 mol/L oxalic acid at 40 V for 6 min 34 s.