This paper proposes a metasurface-enhanced structured light (SL) depth-sensing platform capable of scattering high-density (~10K) dot arrays over a 180° field of view (FOV). The platform utilizes subwavelength-scale light manipulation for enhanced FOV and diffraction efficiency compared to conventional methods. A proof-of-concept demonstration involving depth estimation of face masks is presented, utilizing a stereo matching algorithm. Furthermore, a high-throughput manufacturing method using nanoparticle-embedded resin (nano-PER) imprinting is demonstrated, enabling metasurface replication on various substrates. The authors suggest potential applications in face recognition and automotive robot vision.

Gyeongtae Kim, Yeseul Kim, Jooyeong Yun, Seong-Won Moon, Seokwoo Kim, Jaekyung Kim, Junkyeong Park, Trevon Badloe, Inki Kim, Junsuk Rho