Electromagnetically-induced-transparency spectroscopy of high-lying Rydberg states in 39K
Abstract
We present a study of the Rydberg spectrum in 39K for n S and n D3 /2 series connected to 5 2P1 /2 using two-photon spectroscopy based on electromagnetically induced transparency in a heated vapor cell. We observed some 80 transitions from 5 P1 /2 to Rydberg states with principal quantum numbers n ∼50 -90 , and determined their transition frequencies and state energies with sub-GHz precision. Our spectroscopy results lay the groundwork for using Rydberg atoms as sensitive microwave photon detectors in searches for dark matter axions in the ∼40 -200 μ eV mass range, which is a prime range for future axion searches suggested by theory studies.
- Publication:
-
Physical Review A
- Pub Date:
- April 2022
- DOI:
- 10.1103/PhysRevA.105.042808
- arXiv:
- arXiv:2112.04614
- Bibcode:
- 2022PhRvA.105d2808Z
- Keywords:
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- Physics - Atomic Physics
- E-Print:
- Physical Review A 105, 042808 (2022)