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The clock is the latest demonstration that a much more precise definition of the official second is possible and that new applications of clocks are feasible.
Chip-based devices known as frequency combs, which measure the frequency of light waves with unparalleled precision, have revolutionized time keeping, the
In research, sometimes the bumpy path proves to be the best one. By creating tiny, periodic bumps in a miniature racetrack for light, researchers at the
Researchers at the National Institute of Standards and Technology (NIST) have devised a photonic circuit on a chip that transforms a single incoming beam of
Physicist Jun Ye has a knack for making every second count—literally. At JILA, a joint research institute of the University of Colorado and the National
NIST recognizes the importance of the infrastructure that provides positioning, timing, and navigation (PNT) information to the scientific knowledge, economy
The initial public draft of NIST IR 8323r1, Foundational PNT Profile: Applying the Cybersecurity Framework for the Responsible Use of Positioning, Navigation
Networks linking atomic clocks on satellites with those on Earth promise an exciting new frontier for science, including in the search for mysterious dark
Like a vocal coach who extends the octave range of an opera singer, researchers at the National Institute of Standards and Technology (NIST) have expanded by
JILA physicists have measured Albert Einstein’s theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever
Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have significantly improved the ability of a type of optical
Stable is the chip-scale clock that uses a different laser, or so says the latest research from NIST physicists. Our scientists replaced an old infrared
The natural, or resonance, frequency at which a simple harmonic oscillator vibrates reveals with exquisite sensitivity the essential properties of the physical