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We report measurements of the absolute energies of the hyperfine componentsof the $12s \ ^2S_{1/2}$ and $13s \ ^2S_{1/2}$ levels of atomic cesium,$^{133}$Cs. Using the frequency difference between these components, wedetermine the hyperfine coupling constants for these states, and report thesevalues with a relative uncertainty of $\sim$0.06 %. We also examine thehyperfine structure of the $11d \ ^2D_{J}$ ($J=3/2, 5/2$) states, and resolvethe sign ambiguity of the hyperfine coupling constants from previousmeasurements of these states. We also derive new, high precision values for thestate energies of the $12s \ ^2S_{1/2}$, $13s \ ^2S_{1/2}$ and $11d \ ^2D_{J}$states of cesium.

physical review. a/physical review, a

Measurement of the hyperfine coupling constants and absolute energies of  the $12s \ ^2S_{1/2}$, $13s \ ^2S_{1/2}$, and $11d \ ^2D_{J}$ levels in  atomic cesium