Collecting up 80% of light emitted from tiny color center diamond defects by placing nanodiamonds into specially designed hybrid nanoantennas

https://www.eurekalert.org/news-releases/1098823

"room temperature chip-based single photon emission of quantum information... much of this light is lost in all directions, making it hard to capture and use... embedding nanodiamonds containing nitrogen-vacancy center defects into center of hybrid nanoantennas of metal/ dielectric layers in bullseye pattern instead of letting it scatter... quantum computers, secure quantum communication, ultra-sensitive sensors"