University of Tokyo researchers develop "diffraction casting" optical computing method for high-speed, energy-efficient computing.

Researchers at the University of Tokyo have developed a new optical computing method called "diffraction casting," which improves upon traditional shadow casting. This technique uses light wave properties for more efficient and flexible optical elements, potentially enabling high-speed, energy-efficient computing. It can perform basic logic operations and may have applications in image processing and machine learning. However, commercial availability is expected in about 10 years as further development is needed.