Monolithically Integrated Metasurface on a PCSEL for Depth Perception.

ABSTRACT: Dot projectors are pivotal for depth perception in modern consumer electronics, from smartphones to extended reality devices, enabling applications in computational imaging, machine vision, and privacy-preserving technologies. However, existing dot projector designs face significant challenges related to their size and power consumption. Here, we demonstrate the first monolithic integration of a metasurface hologram and a photonic crystal surface-emitting laser (PCSEL) to realize a chip-scale structured light projector. This approach achieves unprecedented reductions in both device footprint and power usage, while preserving practical 3D sensing capabilities. Our wafer-level design features a compact footprint of 0.025 mm³, representing an approximately 2450-fold reduction in vo

SUBMITTER: Hsu WC 

PROVIDER: S-EPMC12291584 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature