You can perform a million AI calculations at once using just an LCD screen and a patterned piece of plastic.
April 1, 2026
Original Paper
Large-scale nonlinear optical computing with incoherent light via linear diffractive systems
arXiv · 2603.29131
The Takeaway
Instead of using power-hungry computer chips, this system uses the way light naturally waves and bends to process data at massive scales. It proves that high-level AI tasks can be done entirely through the physical properties of light propagation, making complex computing possible with almost no electricity.
From the abstract
Nonlinear computation is essential for various information processing tasks. Optical implementations are attractive because passive light propagation can manipulate high-dimensional signals with extreme throughput and parallelism; yet realizing nonlinear mappings in optical hardware remains challenging due to the weak nonlinearity of optical materials and the large intensities required to induce nonlinear interactions. This challenge is further amplified in many systems that operate with incoher