Isotope shift and hyperfine splitting of the $4s\to 5p$ transition in potassium

Abstract

We have investigated $4s{}^2{S}_{1/2}\to 5p{}^2{P}_{1/2}$ transition ($D_1$ line) of the potassium isotopes ${}^{39}$K, ${}^{40}$K, and ${}^{41}$K using Doppler-free laser saturation spectroscopy. Our measurements reveal the hyperfine splitting of the $5p{}^2{P}_{1/2}$ state of ${}^{40}$K and we have determined the specific mass shift and the nuclear field shift constants for the blue $D_1$ line.

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• Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate
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Cited by in corpus (5)

• Low-temperature, high-density magneto-optical trapping of potassium using the open 4S-5P transition at 405 nm
• Survey of hyperfine structure measurements in alkali atoms
• Absolute absorption on the potassium D lines:theory and experiment
• Velocity-selective EIT measurement of potassium Rydberg states
• Hyperfine effects on potassium tune-out wavelengths and polarizabilities