BIC architectures typically face a fundamental trade-off between high quality (Q) factors and wide-angle chiral operation. Scientists have now developed a planar dielectric metasurface that overcomes ...

Topological complexity is a central concept that bridges the abstract methodologies of algebraic topology with the practical challenges of robot motion planning. It provides a numerical invariant that ...

Researchers from the University of East Anglia, working with partners in South Africa, have shown that light can twist and spin in empty space without mirrors, lenses, or special materials. By ...