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In this work we realize an optical memory for polarization state of light that is based on atomic frequency comb protocol in a 153Eu:Y2SiO5 crystal. In order to compensate for the absorption and refraction anisotropy of the crystal we use a setup with multiple passes through the sample with intermediary rotation of polarization. We obtain memory efficiency of ∼25% with a storage time of ∼165 ns and fidelity of over 85%.
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Ахмеджанов et al. (2022) studied this question.
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