Sub-second volumetric 3D printing by synthesis of holographic light fields
Summary
Nature reports DISH (digital incoherent synthesis of holographic light fields), a method enabling sub-second volumetric 3D printing of millimeter-scale objects without rotating the sample. By combining a rotating periscope, a DMD-based holographic projector, adaptive optics calibration, and a wave-optics optimization framework, the approach achieves about 11–19 μm resolution across 1 cm depth in 0.6 s using low-viscosity inks, with demonstrations across multiple materials and a fluidic channel for mass production. The work discusses performance limits, comparison to prior CAL approaches, and avenues for acceleration via hardware upgrades and AI/GPU-based computation.