A hollow-core optical fibre filled with warm caesium atoms can temporarily store the properties of photons. Michael Sprague from the University of Oxford, UK, explains to Nature Photonics how this optical memory could be a useful building block for fibre-based quantum optics.
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Graydon, O. Hollow memories. Nature Photon 8, 340 (2014). https://doi.org/10.1038/nphoton.2014.77
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DOI: https://doi.org/10.1038/nphoton.2014.77
