[HTML][HTML] Survey of hyperfine structure measurements in alkali atoms

M Allegrini, E Arimondo, LA Orozco - Journal of Physical and Chemical …, 2022 - pubs.aip.org
The spectroscopic hyperfine constants for all the alkali atoms are reported. For atoms from
lithium to cesium, only the long lived atomic isotopes are examined. For francium, the …

Controlling the dynamics of quantum mechanical systems sustaining dipole-forbidden transitions via optical nanoantennas

R Filter, S Mühlig, T Eichelkraut, C Rockstuhl… - Physical Review B …, 2012 - APS
We suggest to excite dipole-forbidden transitions in quantum mechanical systems by using
appropriately designed optical nanoantennas. The antennas are tailored such that their near …

Rutherford scattering of electron vortices

R Van Boxem, B Partoens, J Verbeeck - Physical Review A, 2014 - APS
By considering a cylindrically symmetric generalization of a plane wave, the first-order Born
approximation of screened Coulomb scattering unfolds two new dimensions in the scattering …

Observation of electric quadrupole transitions to Rydberg states of ultracold rubidium atoms

D Tong, SM Farooqi, EGM Van Kempen, Z Pavlovic… - Physical Review A …, 2009 - APS
We report the observation of dipole-forbidden, but quadrupole-allowed, one-photon
transitions to high-Rydberg states in Rb. Using pulsed uv excitation of ultracold atoms in a …

Study of the velocity-selection satellites present in the () electric quadrupole transitions in atomic rubidium

FS Ponciano-Ojeda, C Mojica-Casique… - Journal of Physics B …, 2023 - iopscience.iop.org
This article presents detailed experimental and theoretical studies of the satellite
fluorescence lines observed when the $5 P_ {3/2}\to 6P_J $,($ J= 1/2$, $3/2$) electric …

Observation of the electric-dipole-forbidden transition in atomic rubidium using optical-optical double-resonance spectroscopy

F Ponciano-Ojeda, S Hernández-Gómez… - Physical Review A, 2015 - APS
Direct evidence of excitation of the 5 p 3/2→ 6 p 3/2 electric-dipole-forbidden transition in
atomic rubidium is presented. The experiments were performed in a room-temperature …

Projectile transverse momentum controls emission in electron vortex ionization collisions

A Plumadore, AL Harris - Journal of Physics B: Atomic, Molecular …, 2020 - iopscience.iop.org
The realization of electron vortex (EV) beams in the past decade has led to numerous
proposed applications in fields from electron microscopy to control and manipulation of …

A distorted-wave approach to the elastic scattering of twisted electrons

AL Harris, S Fritzsche - arxiv preprint arxiv:2411.14558, 2024 - arxiv.org
The elastic scattering of spinless vortex electrons on realistic target atoms has been
investigated. In particular, expressions are derived in different approximations for the elastic …

Electric-dipole forbidden transitions for probing atomic state preparation: the case of the Autler–Townes effect

F Ramírez-Martínez, F Ponciano-Ojeda… - Journal of Physics B …, 2021 - iopscience.iop.org
This work demonstrates an scheme in which a weak electric quadrupole (E2) transition with
a controlled frequency detuning in a ladder configuration is used as an extremely non …

Use of the electric dipole forbidden transition in Rb as a non-perturbing probe of atom dynamics in an operating magneto-optical trap

LM Hoyos-Campo, FS Ponciano-Ojeda… - New Journal of …, 2024 - iopscience.iop.org
Results of spectroscopy experiments using the 5P3/2→ 6P3/2 electric dipole forbidden
transition in cold rubidium atoms are presented. Production of this forbidden transition is …