This advancement could advance data transmission capabilities in fields requiring light-based encoding, such as telecommunications.
The Aalto team’s breakthrough stems from manipulating metallic nanoparticles using an electric field to form a unique pattern called a “quasicrystal.”Modern communication heavily relies on encoding information onto various carriers, with laser light transmitted through fiber optic cables as one of the most common methods. However, as the demand for data transmission grows, the need for more efficient encoding techniques has become pressing.
“This research is on the relationship between the symmetry and the rotationality of the vortex, i.e. what kinds of vortices can we generate with what kinds of symmetries. Our quasicrystal design is halfway between order and chaos,” Päivi Törmä, one of the study authors, says. By controlling the symmetry within these quasicrystals, the researchers can create complex light vortices that carry different types of encoded information.
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