Nanowerk July 15, 2020
High-frequency electromagnetic waves are used to transmit and process information in microelectronic devices. To gain a better understanding of precisely the way magnons behave and propagate in different structures researchers in Switzerland examined how electromagnetic waves propagate, and how they could be manipulated, in artificial ferromagnetic quasicrystals. They found that under controlled conditions a single electromagnetic wave coupled to an artificial quasicrystal splits into several spin waves which then propagate within the structure. Each of these spin waves represents a different phase of the original electromagnetic wave, carrying different information. By imaging wavefronts in quasicrystals, insight is gained into how the discovered features materialize as a dense wavelength division multiplexer…read more. Open Access TECHNICAL ARTICLE
Scanning electron microscopy images of circular nanoholes (dark) patterned on a) Penrose P2 and b) Penrose P3 quasicrystal lattices… Credit: Advanced Functional Materials, 15 July 2020.