Fig. 2: Simulation of spatiotemporal focusing.

a DMD grating orientation. Blue dashed lines indicate the 2D grating with separation d1 formed by the mirror grid spacing. Orange dashed lines indicate the 1D grating with separation d₂ formed by mirror tilt. Bottom part of figure indicates corresponding DMD mirror tilts for pixels in the “on,” “off,” and “neutral” states. b Simulated xy-plane profiles of peak I² for progressive z-positions along the propagation direction of the spatiotemporal focusing near the print plane for a 1.52 mm × 2.28 mm rectangular pattern of DMD pixels being spatially and temporally focused. c Normalized I² of the laser pulse profile in time for select z-positions along the center (optical axis) of the pattern from b. d I² values for different z-positions along the center (optical axis) of the pattern from b