Supplementary information for Gliozzi, A.S., Miniaci, M., Chiappone, A. et al. Tunable photo-responsive elastic metamaterials. Nat Commun 11, 2576 (2020). https://doi.org/10.1038/s41467-020-16272-y and raw data for Fig. 3 therein. Each file contains data for the spectra corresponding to each different temperature. The file has a suffix XXC, where XX indicates the temperature of the climate chamber in decrees C. Data are organized in two columns: the first is frequency in kHz, the second is FFT magnitude in dB The Video file 'represents the evolution of the transmission spectrum under illumination (data reltive to Fig. 2c in the main text), with 1 spectrum per second. At t=100s the sample is illuminated (first pillar) until t=360s. Then the spectrum reverts to the initial one