Making dark exciton states shine unlocks new frontiers for nanotechnology for quantum communication and ultra-compact photonic devices

https://www.eurekalert.org/news-releases/1105654

"fabricated optical cavity using gold nanotubes/ 2D tungsten diselenide semiconductors... amplified dark excitons 300,000X for visibility, long lifetimes, reduced decoherence... tunable using electric/ magnetic fields, allowing precise control... previously unobserved on/off switchable spin-forbidden dark excitons enables faster, smaller, more energy-efficient quantum information/ computing devices without altering fundamental nature of previously dark excitons... on-chip photonics, sensors, advanced communication"