Photonic innovation: researchers in the US have created an optical metamaterial that can perform vector–matrix multiplication. (Courtesy: iStock/Henrik5000) A new silicon photonics platform that can ...

Photonic structures that can perform mathematical operations and solve equations are becoming increasingly popular due to the resurgence of optical analogue computing with the promise of low-power, ...

1. A **basis** is a coordinate system. 2. A vector has different coordinate columns in different bases. 3. A linear transformation has different matrix representations in different input/output bases.

The integration of electromagnetic waves into analogue computing systems has provided opportunities for ultrafast, low-power computations. Traditional metasurfaces often face challenges in ...