On page 4716 of ref. [1], the ω ⁶ dependence of the hole power transmission mentioned in the discussion should be ω ⁴. The power transmission depends on the aperture diameter a as a ⁶ as observed in references [26–28] in our paper. In addition, we have recently learned that a similar correspondence as the one that we observe between the time-derivative of the incident field and the near-field component E_z at the hole edge, was also observed in an earlier THz nearfield experiment by Mitrofanov et al.[2] This experiment measured the in-plane electric field, at a fixed position directly behind a small aperture, using a dipole antenna integrated with the structure, and should have been included as a reference for completeness.