New light trap design supercharges atom-thin semiconductors

Atomically thin semiconductors like tungsten disulfide (WS₂) are emerging as key materials for next-generation photonic technologies. Even though they are only a single layer of atoms, they can host tightly bound excitons, which are electron and hole pairs that interact strongly with light. These materials can also produce new colors of light through nonlinear optical effects such as second-harmonic generation. Because of these properties, they are promising for applicat...