Topologically distinct photonic crystals (IMAGE) City College of New York Caption Topologically distinct photonic crystals (orange and blue) with a layer of hexagonal boron nitride on top enable coupling of topological light and lattice vibrations to form chiral half-light half-vibration excitations, which can be directionally guided along 1D channels in robust manner. Credit Image credit: Filipp Komissarenko and Sriram Guddala Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.