Publication - Journal Article Laser Refrigeration of Ytterbium‐Doped Sodium–Yttrium–Fluoride Nanowires DOI https://doi.org/10.1002/adma.201600406 Journal Article Advanced Materials, vol. 28, iss. 39, pp. 8658-8662, 2016 Authors Xuezhe Zhou, Bennett E. Smith, Paden B. Roder, Peter J. Pauzauskie Language English