Optical atomic clocks represent the state of the art in the frontier of modern measurement
science. In this article a detailed review on the development of optical atomic clocks that are …

Atomic polarization phenomena im**e upon a number of areas and processes in physics.
The dielectric constant and refractive index of any gas are examples of macroscopic …

We demonstrate the long-distance transmission of an ultrastable optical frequency derived
directly from a state-of-the-art optical frequency standard. Using an active stabilization …

We present precision measurements with MHz uncertainty of the energy gap between
asymptotic and well bound levels in the electronic ground state X Σ 1 g+ of the K 39 2 …

We have explored the performance of two “dark fibers” of a commercial telecommunication
fiber link for a remote comparison of optical clocks. The two fibers, linking the Leibniz …

Optical frequency measurements of the intercombination line (6 s 2) S 0 1-(6 s 6 p) P 1 3 in
the isotopes of ytterbium are carried out with the use of sub-Doppler fluorescence …

We demonstrate a means of increasing the signal-to-noise ratio in a Ramsey–Bordé
interferometer with spatially separated oscillatory fields on a thermal atomic beam. The S 0 …

Abstract We perform Ramsey–Bordé spectroscopy on laser-cooled magnesium atoms in
free fall to measure the 1 S 0→ 3 P 1 intercombination transition frequency. The measured …

We present a spectroscopy scheme for the 7 kHz wide 689 nm intercombination line of
strontium. We rely on shelving detection, where electrons are first excited to a metastable …

The |$X^{1}\Sigma ^{+}_{g}$|X1Σg+ ground state of Mg2 studied by Fourier-transform
spectroscopy | The Journal of Chemical Physics | AIP Publishing Skip to Main Content …