Designing a spiral ladder-inspired tool that allows precision control of light direction and polarization

https://www.eurekalert.org/news-releases/1064840

"quantum dot next to nanostructure enables directional emission or circular polarisation... all mirror symmetries must be broken in structure emitting chiral waves... twisted bilayer metasurfaces of 2 layers periodically arranged discs with notches carved at specific angles generating electricity... disc notches cause asymmetry, allowing emitted waves' polarisation control of distance between layers, angle between notches, lateral shift of top/ bottom discs... biological/ chemical sensing, optic communications, quantum computing"