optics.org

NIST scientists produce selectable-wavelength lasers in tiny circuits

Scientists may be on the cusp of launching a similar technological revolution — this time using light. In a significant advance toward that goal, the U.S. National Institute of Standards and ...

Bringing quantum time into the lab—a single clock can run young and old at once

Few concepts in physics are as familiar, yet as enigmatic, as time. In Einstein's theory of relativity, time is not absolute: ...

Chinese scientists develop crystal that could lead to ultra-precise nuclear clocks

Chinese breakthrough in ultraviolet crystals could lead to navigation systems resistant to jamming ...
IEEE

Research on Time Scale of Cesium Atomic Clocks Based on Kalman Plus Weights Algorithm

Abstract: High-performance atomic clocks provide the foundation for precise time measurement. Common high-performance atomic clocks in time-keeping laboratories include hydrogen masers and cesium ...