Breaking the diffraction limit for the resolution of conventional optical systems has long been the primary aim of optical imaging. The recently demonstrated far-field optical superlens is paving the way to this elusive goal.
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Narimanov, E. Optical Nanoscope. Nature Photon 1, 260–261 (2007). https://doi.org/10.1038/nphoton.2007.57
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DOI: https://doi.org/10.1038/nphoton.2007.57
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