Correction to: Nature Nanotechnology https://doi.org/10.1038/s41565-020-0672-y, published online 13 April 2020.

In the version of this Article originally published online, in Fig. 1a, in the bottom x axis label, the unit for the optomechanical disk radius was incorrectly given as ‘m’, and should have been ‘µm’. This error has now been corrected in all versions of the Article.