Even your Macbook or smartphone displays time which is synchronized to the NIST-F1 clock, a cesium fountain atomic clock (aka the ‘Atomic Clock’) that is part of a global consortium of atomic ...

With access to a 10-MHz timebase from a cesium fountain atomic clock — no less a clock than the one that’s used to define the SI second, by the way — [Daniel] looked for ways to sync the ...

This is a “caesium fountain”, called Nist-F3, and it is the tuning fork for America’s official atomic clocks, the ur-clock. It rings not sound but microwaves. The best caesium clocks count ...

Time is vital to the functioning of our everyday lives: from the watches on our wrists to the GPS systems in our phones.

The invention – called the optical lattice clock – is a thousand times more accurate than cesium atomic clocks used for international timekeeping and is a contender for redefining how long a ...

A feedback loop is also used to stabilize the 578-nm laser frequency to the clock transition. Absolute frequency measurements are carried out relative to a local caesium-fountain primary frequency ...

Time standards and frequency standards can include cesium or rubidium atomic clocks, quartz oscillators, hydrogen masers and other master clocks. Time reference sources are used in networks & ...

As the industry’s first high-performance optical cesium atomic clock, the OSA 3300 HP sets new standards for accuracy and stability, while assuring 10 years of operation. It also strengthens ...

Atomic clocks typically excite cesium atoms with photons of energy 4 x 10-5 electronvolts. The most promising nucleus for a ...

As the world’s first commercial optical cesium atomic clock, the OSA 3300 HP provides unmatched timing accuracy and long-term stability, offering a 10-year lifespan compared to the five-year ...