Measurement of holmium Rydberg series through magneto-optical trap depletion spectroscopy

J. Hostetter, J. D. Pritchard, J. E. Lawler, and M. Saffman
Phys. Rev. A 91, 012507 – Published 16 January 2015

Abstract

We report measurements of the absolute excitation frequencies of Ho165 4f116sns and 4f116snd odd-parity Rydberg series. The states are detected through depletion of a magneto-optical trap via a two-photon excitation scheme. Measurements of 162 Rydberg levels in the range n=40–101 yield quantum defects well described by the Rydberg-Ritz formula. We observe a strong perturbation in the ns series around n=51 due to an unidentified interloper at 48515.47(4) cm1. From the series convergence, we determine the first ionization potential EIP=48565.910(3) cm1, which is three orders of magnitude more accurate than previous work. This work is an important step towards using Ho atoms for collective encoding of a quantum register.

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  • Received 3 December 2014

DOI:https://doi.org/10.1103/PhysRevA.91.012507

©2015 American Physical Society

Authors & Affiliations

J. Hostetter*, J. D. Pritchard, J. E. Lawler, and M. Saffman

  • Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706, USA

  • *hostetter@wisc.edu
  • msaffman@wisc.edu

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Issue

Vol. 91, Iss. 1 — January 2015

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