New chip opens door to AI computing at light speed

https://phys.org/news/2024-02-chip-door-ai.html

"uses light in SiPh chips... vector-matrix multiplication in neural networks powering AI... silicon 150 nm thin only in specific regions... height variations control light propagation through chip, since height variations distributed causes light scattering in specific patterns, allowing calculations at light speed... can adopt as add-on speeding up training and classification... faster, energy efficient, unhackable: no need to store sensitive information with many computations in parallel... graphics processing units"

Related: Researchers develop new integration technique for efficient coupling of III-V and silicon

https://phys.org/news/2024-02-technique-efficient-coupling-iii-silicon.htm