Analysis of Rydberg Excitation in Rubidium

Erik Brekke

Published Jan 1, 2023• 0 citations

Abstract

We demonstrate Rydberg state excitation in thermal rubidium vapor through the 6p state using light at 420 nm and 1015 nm. The system is analyzed through fluorescence, electromagnetically induced transparency and microwave coupling.

DOI: 10.1364/cleo_at.2023.jth2a.1

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Publisher

Abstract

DOI: 10.1364/cleo_at.2023.jth2a.1

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In this work, we precisely measure the transition energies between the Rydberg state n

\text{D}_{5/2}

to the nearby Rydberg states $(\e{n}+2)\text{P}_{3/2}$, $(\e{n}-2)\text{F}_{7/2}$ for the range $41\leq \e{n}\leq46$. This was done by carrying out microwave spectroscopy via Electromagnetically Induced Transparency (EIT) in a room temperature vapor reference cell of Rubidium, which is similar to the experimental approach followed by Li et al. [Results in Physics \textbf{29}, 104728 (2021)]. This range is interesting because there is a quasi Förster resonance between the atomic pair

43\text{D}_{5/2}+43\text{D}_{5/2}

and

45\text{P}_{3/2}+41\text{F}_{7/2}

. We compared the obtained results with numerically calculated transition energies based on previously tabulated quantum defect numbers by various research groups using both hot and ultra-cold atomic samples. Our data are more consistent with measurements made within ultra-cold atomic systems [Phys. Rev. A \textbf{67}, 052502 (2003), Phys. Rev. A \textbf{74}, 054502 (2006)].