Eurekalert July 24, 2019
Researchers at Stanford University designed arrays of ultra-thin silicon disks that work in pairs to trap the light and enhance its spiraling motion until it finds its way out. This results in high transmission in the forward direction. When illuminated in the backwards direction, the acoustic vibrations spin in the opposite direction and help cancel out any light trying to exit. Theoretically, there is no limit to how small this system could be. According to the researchers efficient photonic diodes is paramount to enabling next-generation computing, communication and even energy conversion technologies. The increased speed and bandwidth of light would enable faster solutions to some of the hardest scientific, mathematical and economic problems…read more. Open Access TECHNICAL ARTICLE
Nature Communications http://dx.doi.org/10.1038/s41467-019-11175-z