Excitation of Forbidden Electronic Transitions in Atoms by Hermite–Gaussian Modes

verfasst von

Anton A. Peshkov, Elena Jordan, Markus Kromrey, Karan K. Mehta, Tanja E. Mehlstäubler, Andrey Surzhykov

Abstract

Photoexcitation of trapped ions by Hermite–Gaussian (HG) modes from guided beam structures is proposed and investigated theoretically. In particular, simple analytical expressions for the matrix elements of induced atomic transitions are derived that depend both on the parameters of HG beams and on the geometry of an experiment. By using these general expressions, the (Formula presented.) electric octupole (E3) transition is investigated in an Yb

⁺ ion, localized in the low–intensity center of the HG

₁₀ and HG

₀₁ beams. It is shown how the corresponding Rabi frequency can be enhanced by properly choosing the polarization of incident light and the orientation of an external magnetic field, which defines the quantization axis of a target ion. The calculations, performed for experimentally feasible beam parameters, indicate that the achieved Rabi frequencies can be comparable or even higher than those observed for the conventional Laguerre–Gaussian (LG) modes. Since HG-like modes can be relatively straightforwardly generated with high purity and stability from integrated photonics, these results suggest that they may form a novel tool for investigating highly-forbidden atomic transitions.

Organisationseinheit(en)

Institut für Quantenoptik
Laboratorium für Nano- und Quantenengineering

Externe Organisation(en)

Physikalisch-Technische Bundesanstalt (PTB)
Cornell University
Technische Universität Braunschweig

Typ

Artikel

Journal

Annalen der Physik

Band

535

ISSN

1521-3889

Publikationsdatum

08.09.2023

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Physik und Astronomie (insg.)

Elektronische Version(en)

https://doi.org/10.1002/andp.202300204 (Zugang: Offen)