Microwave to optical photon conversion via fully concentrated rare-earth-ion crystals

Jonathan R. Everts, Matthew C. Berrington, Rose L. Ahlefeldt, Jevon J. Longdell

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    43 Citations (Scopus)

    Abstract

    Most investigations of rare-earth ions in solids for quantum information have used crystals where the rare-earth ion is a dopant. Here, we analyze the conversion of quantum information from microwave photons to optical frequencies using crystals where the rare-earth ions, rather than being dopants, are part of the host crystal. These concentrated crystals are attractive for frequency conversion because of their large ion densities and small linewidths. We show that conversion with both high efficiency and large bandwidth is possible in these crystals. In fact, the collective coupling between the rare-earth ions and the optical and microwave cavities is large enough that the limitation on the bandwidth of the devices will instead be the spacing between magnon modes in the crystal.

    Original languageEnglish
    Article number063830
    JournalPhysical Review A
    Volume99
    Issue number6
    DOIs
    Publication statusPublished - 21 Jun 2019

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