Spectroscopy of laser cooling transitions in MgF

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Main Authors: Pilgram, Nickolas H., Baldwin, Benjamin, La Mantia, David S., Eckel, Stephen P., Norrgard, Eric B.
Format: Preprint
Published: 2024
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author Pilgram, Nickolas H.
Baldwin, Benjamin
La Mantia, David S.
Eckel, Stephen P.
Norrgard, Eric B.
author_facet Pilgram, Nickolas H.
Baldwin, Benjamin
La Mantia, David S.
Eckel, Stephen P.
Norrgard, Eric B.
contents We measure the complete set of transition frequencies necessary to laser cool and trap MgF molecules. Specifically, we report the frequency of multiple low $J$ transitions of the $X^2Σ^+(v^{\prime\prime}=0,1) \rightarrow A^2Π_{1/2}(v^\prime=0)$, $X^2Σ^+(v^{\prime\prime}=1,2) \rightarrow A^2Π_{1/2}(v^\prime=1)$, and $X^2Σ^+(v^{\prime\prime}=1) \rightarrow B^2Σ^+(v^{\prime}=0)$ bands of MgF. The measured $X^2Σ^+(v^{\prime\prime}=1)\rightarrow B^2Σ^+(v^\prime=0)$ spectrum allowed the spin-rotation and hyperfine parameters of the $B^2Σ^+(v=0)$ state of MgF to be determined. Furthermore, we demonstrate optical cycling in MgF by pumping molecules into the $X^2Σ^+(v=1,2)$ states. Optical pumping enhances the spectroscopic signals of transitions originating in the $N^{\prime\prime}=1$ level of the $X^2Σ^+(v^{\prime\prime}=1,2)$ states.
format Preprint
id arxiv_https___arxiv_org_abs_2403_11785
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Spectroscopy of laser cooling transitions in MgF
Pilgram, Nickolas H.
Baldwin, Benjamin
La Mantia, David S.
Eckel, Stephen P.
Norrgard, Eric B.
Atomic Physics
Chemical Physics
We measure the complete set of transition frequencies necessary to laser cool and trap MgF molecules. Specifically, we report the frequency of multiple low $J$ transitions of the $X^2Σ^+(v^{\prime\prime}=0,1) \rightarrow A^2Π_{1/2}(v^\prime=0)$, $X^2Σ^+(v^{\prime\prime}=1,2) \rightarrow A^2Π_{1/2}(v^\prime=1)$, and $X^2Σ^+(v^{\prime\prime}=1) \rightarrow B^2Σ^+(v^{\prime}=0)$ bands of MgF. The measured $X^2Σ^+(v^{\prime\prime}=1)\rightarrow B^2Σ^+(v^\prime=0)$ spectrum allowed the spin-rotation and hyperfine parameters of the $B^2Σ^+(v=0)$ state of MgF to be determined. Furthermore, we demonstrate optical cycling in MgF by pumping molecules into the $X^2Σ^+(v=1,2)$ states. Optical pumping enhances the spectroscopic signals of transitions originating in the $N^{\prime\prime}=1$ level of the $X^2Σ^+(v^{\prime\prime}=1,2)$ states.
title Spectroscopy of laser cooling transitions in MgF
topic Atomic Physics
Chemical Physics
url https://arxiv.org/abs/2403.11785