Absolute Frequency Measurement of the 2p²(³p)3s ²P–2p²(³p)3p ²D^o Transitions in Neutral ¹⁴N

Authors

K. J. Ahrendsen, Smith College
C. Maruko, Smith College
K. R. Albert-Aranovich, Smith College
Q. Berfield-Brewer, Smith College
A. Esseln, Smith College
L. Guo, Smith College
A. E. Ishimwe, Smith College
Y. Kuzniar, Smith College
A. E. Mckenna, Smith College
K. J.Soto Villarreal, Smith College
A. Uprety, Smith College
L. Vieira Da Silva, Smith College
K. F. Vogt, Smith College
W. D. Williams, Smith CollegeFollow

Author ORCID Identifier

K. J. Ahrendsen: 0000-0003-2324-043X

C. Maruko: 0000-0002-6723-8115

K. R. Albert-Aranovich: 0000-0002-0876-7316

K. A. Esseln: 0009-0002-4493-7797

K. A. E. Ishimwe: 0009-0009-0722-8714

K. A. E. McKenna: 0009-0006-6468-6250

K. K. J. Soto Villarreal: 0009-0008-4186-9788

L. Vieira Da Silva: 0009-0008-9190-561X

K. F. Vogt: 0000-0002-4519-7500

W. D. Williams: 0000-0001-8446-8329

Document Type

Article

Publication Date

10-1-2023

Publication Title

Physical Review A

Abstract

We report absolute frequency measurements on the three excited-state transitions connecting the 2⁢𝑝2⁡(3⁢𝑃)⁢3⁢𝑠2⁢𝑃1/2,3/2 and 2⁢𝑝2⁡(3⁢𝑃)⁢3⁢𝑝⁡2⁢𝐷∘3/2,5/2 states in neutral 14N using saturated absorption spectroscopy in a glass cell filled with a mixture of nitrogen and argon gas and driven with a radio-frequency electric field. The absolute transition frequencies are found to be 319 288 834(150), 319 085 445(125), and 316 795 808(140) MHz for the 1/2–3/2, 3/2–5/2, and 3/2–3/2 transitions, respectively. This work represents the saturated absorption measurements for these transitions. These results are approximately a factor of 5 improvement over previous results, despite being conservative estimates. We found that the overlapping hyperfine structure prevented fitting individual spectral features, presenting difficulties for possible future tests of quantum electrodynamics in seven-electron systems. A better understanding of the amplitude behavior of a merged hyperfine structure will allow the extrapolation of the center of gravity frequencies for these transitions to sub-MHz precision using our collected data.

Volume

108

Issue

4

DOI

10.1103/PhysRevA.108.042815

ISSN

24699926

Comments

Published as archived.

Recommended Citation

Ahrendsen, K. J.; Maruko, C.; Albert-Aranovich, K. R.; Berfield-Brewer, Q.; Esseln, A.; Guo, L.; Ishimwe, A. E.; Kuzniar, Y.; Mckenna, A. E.; Villarreal, K. J.Soto; Uprety, A.; Da Silva, L. Vieira; Vogt, K. F.; and Williams, W. D., "Absolute Frequency Measurement of the 2p²(³p)3s ²P–2p²(³p)3p ²D^o Transitions in Neutral ¹⁴N" (2023). Physics: Faculty Publications, Smith College, Northampton, MA.
https://scholarworks.smith.edu/phy_facpubs/110