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Photon Echoes Produced by Switching Electric Fields

A. L. Alexander·J. J. Longdell·M. J. Sellars·N. B. Manson
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Abstract

We demonstrate photon echoes in Eu$^{3+}$:Y$_{2}$SiO$_{5}$ by controlling the inhomogeneous broadening of the Eu$^{3+}$ $^{7}$F$_{0}\leftrightarrow^{5}$D$_{0}$ optical transition. This transition has a linear Stark shift and we induce inhomogeneous broadening by applying an external electric field gradient. After optical excitation, reversing the polarity of the field rephases the ensemble, resulting in a photon echo. This is the first demonstration of such a photon echo and its application as a quantum memory is discussed.

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A. L. Alexander, J. J. Longdell, M. J. Sellars, N. B. Manson. 2005-11-25. Photon Echoes Produced by Switching Electric Fields. https://doi.org/10.1103/physrevlett.96.043602

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