The Z-vector method in the relativistic coupled-cluster framework is used to calculate the
magnetic hyperfine structure constant (AJ) of alkali metals and singly charged alkaline earth …

The dynamic polarizabilities of the atomic states with angular momentum j> 1/2 are sensitive
to the angle between the quantization axis e ̂ z and the polarization vector ε ̂ owing to the …

In this work, we calculate dynamic polarizabilities and hyperfine-structure A and B constants
of a few low-lying states for Sc 2+. The sum-over-states technique is applied to calculate the …

Experiments with vortex beams have shown a surge of interest in controlling cold atoms.
Most of the controlling protocols are dominated by circularly polarized light due to its ability …

A systematic study of Sc iii atomic properties is carried out using a high-precision relativistic
all-order method where all single, double, and partial-triple excitations of the Dirac-Fock …

We report a method for loading 43 Ca+ ions selectively in a linear Paul trap using ultraviolet
light-emitting-diodes (LEDs) for the second excitation in a two-step photo-ionization process …

The linewidth of a 397nm laser was narrowed below 1MHz by locking it to a Fabry-Perot
interferometer. In addition, the cavity length of the interferometer was referenced to the …

We demonstrate direct frequency-comb (FC) spectroscopy of the dipole-forbidden 4s^
2S_1/2–3d^ 2D_5/2 transition in trapped Ca^+ 40 ions using an unamplified FC laser. The …

The interrogation of an ultranarrow clock transition of a single trapped ion for optical
frequency metrology requires a laser stabilized to a couple of Hz per second with a linewidth …

Abstract Two-photon (2E1) decay rates are calculated for metastable 3d j states in Ca+, 4d j
states in Sr+ and 5d j states in Ba+ to evaluate contributions of these transitions to the …