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Efficient optical pumping of Zeeman spin levels in Nd3+: YVO4

Identifieur interne : 007904 ( Main/Exploration ); précédent : 007903; suivant : 007905

Efficient optical pumping of Zeeman spin levels in Nd3+: YVO4

Auteurs : Mikael Afzelius [Suisse] ; Matthias U. Staudt [Suisse] ; Hugues De Riedmatten [Suisse] ; Nicolas Gisin [Suisse] ; Olivier Guillot-Noël [France] ; Philippe Goldner [France] ; Robert Marino [France] ; Pierre Porcher [France] ; Enrico Cavalli [Italie] ; Marco Bettinelli [Italie]

Source :

RBID : Pascal:10-0351218

Descripteurs français

English descriptors

Abstract

We demonstrate that Zeeman ground-state spin levels in Nd3+: YVO4 provides the possibility to create an efficient A- system for optical pumping experiments. The branching ratio R in the A-system is measured experimentally via absorption spectroscopy and is compared to a theoretical model. We show that R can be tuned by changing the orientation of the magnetic field. These results are applied to optical pumping experiments, where significant improvement is obtained compared to previous experiments in this system. The tunability of the branching ratio in combination with its good coherence properties and the high oscillator strength makes Nd3+: YVO4 an interesting candidate for various quantum information protocols.


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Le document en format XML

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<term>Absorption spectra</term>
<term>Branching ratio</term>
<term>Doping</term>
<term>Energy-level splitting</term>
<term>Ground states</term>
<term>Magnetic field effects</term>
<term>Neodymium additions</term>
<term>Optical pumping</term>
<term>Oscillator strengths</term>
<term>Yttrium Vanadates</term>
<term>Zeeman effect</term>
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<keywords scheme="Pascal" xml:lang="fr">
<term>Pompage optique</term>
<term>Effet Zeeman</term>
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<term>Décomposition niveau énergie</term>
<term>Rapport branchement</term>
<term>Spectre absorption</term>
<term>Effet champ magnétique</term>
<term>Dopage</term>
<term>Force oscillateur</term>
<term>Addition néodyme</term>
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<div type="abstract" xml:lang="en">We demonstrate that Zeeman ground-state spin levels in Nd
<sup>3+</sup>
: YVO
<sub>4</sub>
provides the possibility to create an efficient A- system for optical pumping experiments. The branching ratio R in the A-system is measured experimentally via absorption spectroscopy and is compared to a theoretical model. We show that R can be tuned by changing the orientation of the magnetic field. These results are applied to optical pumping experiments, where significant improvement is obtained compared to previous experiments in this system. The tunability of the branching ratio in combination with its good coherence properties and the high oscillator strength makes Nd
<sup>3+</sup>
: YVO
<sub>4</sub>
an interesting candidate for various quantum information protocols.</div>
</front>
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}}

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Data generation: Tue Dec 5 10:43:12 2017. Site generation: Tue Mar 5 14:07:20 2024