Bulletin of the American Physical Society
52nd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 66, Number 6
Monday–Friday, May 31–June 4 2021; Virtual; Time Zone: Central Daylight Time, USA
Session U06: Spectroscopy, Lifetimes, Oscillator Strengths
2:00 PM–3:48 PM,
Thursday, June 3, 2021
Chair: Charles Sukenik, Old Dominion
Abstract: U06.00006 : Observation of the narrow inner-shell orbital transition in atomic erbium at 1299nm
3:00 PM–3:12 PM
Live
Presenter:
Alexander Patscheider
Author:
Alexander Patscheider
Collaborations:
A. Patscheider 1, G. Natale 1, D. Petter 1, L. Chomaz 1, M. J. Mark 1,2, B. Yang 1, F. Ferlaino 1,2
1: Institut für Experimentalphysik, Universitat Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
2: Institut für
Here, we report on the observation of a narrow inner-shell orbital transition of erbium at 1299.21nm, and, for the first time, on coherent control of the atomic state with this optical transition. High-resolution spectroscopy is performed on five erbium isotopes and the transition lines are characterized with high accuracy. We determine the natural linewidth of the transition, which reaches a sub-Hertz level of 0.9(1)Hz, by coherently populating the atoms on the excited state and monitoring the decay rate. The atomic polarizability of the excited state relative to the ground state is measured and a near magic wavelength condition is realized. We finally present theoretical predictions on the atomic polarizability over a broad range, revealing further opportunities for using this long-live excited state.
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