Correction to: Nature Photonics https://doi.org/10.1038/s41566-021-00792-0, published online 15 April 2021.

In the version of this Article originally published, the x axis of the Fig. 4a inset was incorrectly labelled –10, 0, 1, 0; it should have read –10, 0, 10. The original and corrected figures are shown below.

Fig. 4
figure 1

Original and corrected.