Two groups of researchers have shown that the minimum size of a laser need not be restricted by the wavelength of light it emits, provoking a rethink of what optics and lasers can do at the nanoscale.
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Hill, M. Lasers go beyond diffraction limit. Nature Nanotech 4, 706–707 (2009). https://doi.org/10.1038/nnano.2009.330
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DOI: https://doi.org/10.1038/nnano.2009.330
