Measurement of cesium $8\,^2P_{J}\rightarrow 6\,^2P_{J'}$ electric quadrupole transition probabilities using fluorescence spectroscopy

TL;DR

This study measures the electric quadrupole transition probabilities in cesium atoms using fluorescence spectroscopy, providing data that supports theoretical models and aids in dark matter detection research.

Contribution

It presents the first experimental determination of cesium $8P_{J} ightarrow 6P_{J'}$ transition probabilities via fluorescence spectroscopy, aligning with theoretical calculations.

Findings

Transition probabilities agree with theoretical predictions

Provides key parameters for coherent amplification tests

Enhances understanding of cesium atomic properties

Abstract

Fluorescence spectra of the $8P_{J} \rightarrow 6P_{J'}$ ($J$ and $J'$ = 3/2, 1/2) electric quadrupole transition of cesium atoms have been observed with a heated cesium vapor cell. We determined the ratio of the transition probabilities of $8P_{J}\rightarrow6P_{J'}$ to $8P_{J}\rightarrow5D_{3/2}$ by comparing their respective photon emission rates. The results are in good agreement with our theoretical calculations. These measurements provide crucial parameters for tests of coherent amplification method and improve knowledge of cesium properties which are essential to dark matter detection through atomic transitions.