In an isotopically pure 143Nd3+:Y7LiF4 crystal we demonstrate an optical quantum memory on a single photon level using the atomic frequency comb memory protocol. Using weakened laser pulses we demonstrate storage efficiency of 6.5% with the storage time of ~60 ns and signal to noise ratio of around 3.
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Akhmedzhanov, R.A., Gushchin, L.A., Nizov, N.A. et al. Single-photon Level Quantum Memory in an Isotopically Pure 143Nd3+:Y7LiF4 Crystal. Jetp Lett. (2024). https://doi.org/10.1134/S0021364024601167
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DOI: https://doi.org/10.1134/S0021364024601167