WebApr 14, 2024 · We observe a weakly allowed optical transition of atomic ytterbium from the ground state to the metastable state 4 f 13 5 d 6 s 2 (J = 2) for all five bosonic and two … WebOct 20, 2024 · Optical lattice clocks benefit from a large number of interrogated atoms, which naturally reduces the frequency instability. Still, optical lattice clocks require a complex loading scheme from a Zeeman slower or a 2D magneto-optical pre-loading trap. The optical trap is shallow, needs accurate adjustments and is sensitive to vibrations.
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WebFeb 17, 2024 · Such a “magic wavelength” lattice doesn’t affect the clock frequency at all, letting you use it as a clock. Like the ions, the atoms in the optical lattice are confined very tightly, which ... WebJan 20, 2024 · The second technical area calls for performers to develop an optical atomic clock in a transportable package that could fit on a Navy ship or in a field tent to provide GPS-equivalent, nanosecond precision for 30 days in the absence of GPS. ROCkN is a four-year program consisting of two, two-year phases. In Phase 1, performers in both technical ... fitbox frankfurt city
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The idea of trapping atoms in an optical lattice using lasers was proposed by Russian physicist Vladilen Letokhov in the 1960s. The theoretical move from microwaves as the atomic "escapement" for clocks to light in the optical range (harder to measure but offering better performance) earned John L. Hall and Theodor W. Hänsch the Nobel Prize in Physics in 2005. One of 2012's Physics N… WebJul 10, 2024 · An optical clock has three predominant components. The first is an extremely steady “reference” frequency supplied by a slim optical absorption line in an atom or ion. The second component is ... WebFeb 27, 2024 · the development of a transportable optical ion clock . up to Remuneration Group 14 TVöD Bund full-time (39 hours/week) fixed-term contract . The place of work is Hannover. fitboxgate