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Correction to ‘Complex photonic response reveals three-dimensional self-organization of structural coloured bacterial colonies’

In our work ‘Complex photonic response reveals three-dimensional self-organization of structural coloured bacterial colonies’ [1], we study the optical response and organization of bacterial colonies using several techniques including electron microscopy. After publication, we have been notified by the facilities of the transmission electron system used for imaging of bacterial colony cross-sections that the calibration of the images reported in figure 1f, electronic supplementary material, figures S2d and S4a contained an error. The image calibration has changed from an original 0.001971 μm/pixel, to the correct value of 0.004067 μm/pixel. Therefore, the length of the scale bar in figure 1f changes to 2.06 μm. Please note that this changes the lattice constant obtained from these TEM images to a value comparable to the cryogenic SEM images (figure 1d ). However, the large gaps between the cells indicate that there is still a significant amount of shrinkage inside the sample. Therefore, our conclusions on the reliability of using imaging techniques for size determination remain unaltered.