Science Daily April 5, 2021 Previously NIST researchers had demonstrated that atom-based sensors can receive commonly used communications signals. Now a team of researchers in the US (University of Colorado, NIST) used a Rydberg atom-based sensor for determining the angle of arrival of an incident RF signal, key part for a potential atomic communications system. They measured phase differences of a 19.18 gigahertz experimental signal at two locations inside the vapor cell for various angles of arrival. Comparisons of these measurements with both the full-wave simulation and the plane wave theoretical model show that the atom-based sub-wavelength phase measurements can […]
Tag Archives: Advanced communications
Developing technologies that run on light
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 […]