Sensing circularly polarized IR to read photon's spin direction for fiber-optic telecommunications and quantum-level data transmission

https://www.eurekalert.org/news-releases/1121828

"1st single-device sensor covering UV through IR (previously excluded IR)... instead of forcing light-absorbing material twisty, used high-performance quantum dots as light absorbers, introducing twist into chiral molecules' bonded to zinc oxide layer only electrons with specific spin can pass through.... when light hits sensor, resulting electric current changes based on whether light is spinning left/ right... doubles information sent per photon/ near impossible interception... quantum key distribution, medical imaging"