Extended Data Fig. 2: Characterization of the flatness and coplanarity of adjacent membranes.
From: Hundred-fold enhancement in far-field radiative heat transfer over the blackbody limit

a–d, Data from laser scanning confocal microscope scans across adjacent membranes showing the flatness of 270-nm-thick (a), 486-nm-thick (b), 6,712-nm-thick (c) and 11,405-nm-thick (d) membranes. Line profiles were taken over the red dashed line indicated in the surface plots in the insets.