nanophotonics
(3)
Deptrum
Deptrum (光鉴科技) is a Chinese 3D vision company founded in 2018 by three Silicon Valley scientists, including a former Apple depth-hardware lead. It builds full-stack 3D depth-sensing solutions - nanophotonic chips, structured-light and Time-of-Flight cameras, and AI perception algorithms - that let machines see and measure the physical world. Its hardware powers robots, smart cockpits, palm-payment terminals, smartphones and new-retail systems across finance, automotive and IoT.
Lightelligence
Lightelligence builds photonic and optoelectronic hybrid computing hardware that moves and processes AI data with light instead of electrons. Spun out of MIT in 2017 on the back of a landmark Nature Photonics paper, the company designs silicon-photonics chips, optical interconnects, and AI accelerators aimed at the bandwidth and energy bottlenecks of modern data centers. In April 2026 it listed in Hong Kong as the world's first AI silicon-photonics chip stock, jumping roughly 400% on debut.
Metalenz
Metalenz is a Boston-based deep-tech company that replaces stacks of curved glass lenses with a single flat, nanostructured semiconductor chip called a metasurface. Spun out of Harvard's Capasso Lab, it is the first company to mass-produce meta-optics, shrinking cameras and sensors for smartphones, biometrics, and 3D sensing. Its flagship Polar ID brings polarization-based, payment-grade face authentication to devices at a fraction of the size and cost of existing systems.