Figure 2

Quantification of ToF-CUP’s depth resolution.
(a) Side view and photograph of the height-varying fin-pattern target used in the experiment. The ToF-CUP system was placed perpendicularly to the target base and collected backscattered photons from the target surface. (b) Reconstructed x, y, datacube representing the backscattered laser pulse intensity from the fins with different depths. (c) Representative x-y frames at
and 280 ps. Supplementary Video 1 shows the ToF snapshots of the x-y light distributions. Scale bar: 10 mm.