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arXiv · 1611.03569

Measuring the branching ratios from the $y^8 {\rm P}_{9/2}$ state to metastable states in europium

Yuki Miyazawa·Ryotaro Inoue·Keiji Nishida·Toshiyuki Hosoya·Mikio Kozuma
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Abstract

We measure the branching ratios from the $y^8{\rm P}_{9/2}$ excited state to six metastable states of europium through fluorescence spectroscopy of an atomic beam. The sum of the six branching ratios is estimated to be $1.05(2)\times 10^{-3}$. This research provides us with insightful information to determine the feasibility of using the $a^8{\rm S}_{7/2} - y^8{\rm P}_{9/2}$ transition in order to implement the Zeeman slowing for europium atoms in the ground state. Based on this result, we also propose a scheme for Zeeman slowing and magneto-optical trapping, using a specific metastable state which has a cyclic transition.

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Yuki Miyazawa, Ryotaro Inoue, Keiji Nishida, Toshiyuki Hosoya, Mikio Kozuma. 2016-11-11. Measuring the branching ratios from the $y^8 {\rm P}_{9/2}$ state to metastable states in europium. https://doi.org/10.1016/j.optcom.2017.01.059

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