However, aluminum is tricky. The element is difficult to measure with lasers, as well as cool to absolute zero. But when ...

There's a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and ...

The laser beam traveled 3.6 kilometers (over 2 miles) via fiber optic links to NIST, where a frequency comb (acting as a “ruler for light”) allowed the aluminum ion clock’s laser to adopt its superior ...

NIST scientists have published results establishing a new atomic clock, NIST-F4, as one of the world’s most accurate timekeepers, priming the clock to be recognized as a primary frequency ...

They concluded that the performance of their OFD system is sufficient to support an atomic reference with stability better than the commercially available cesium clock that has frequency ...

Timekeeping has always been one of humankind’s greatest fascinations. From observing the sun’s shadow to engineering atomic precision, the evolution of timekeeping devices spans centuries of ...

Adtran today launched the latest additions to its Oscilloquartz optical cesium portfolio, expanding access to precision timing across a wider range of network environments. The new OSA 3200 SP and ...

The LN-CSAC combines a crystal oscillator and an atomic clock in a single device, offering a low-phase noise of 10 Hz < −120 dBc/Hz, an Allan Deviation (ADEV) stability of < 1E-11 at 1-second ...