META 2021, META'12

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Optical control of a sub-diffraction light grid for surface imaging beyond the diffraction limit
anne sentenac, jules girard, geoffroy scherrer, andrea cattoni, A Haghiri-Gosnet, Anne Talneau, benoit cluzel, frederique de Fornel, roland ayuk, ugo giovannini, emeric mudry

Last modified: 2012-01-05


We create experimentally at the surface of a nanostructured cover-slip, a periodic light pattern, with a period smaller than one third of the illumination wavelength (l=633 nm), which can be translated and rotated just by changing the illumination angle. We show that this high frequency light grid can be used in a far-field optical microscope to provide images well beyond the diffraction limit, comparable to that obtained with a near-field microscope.


super-resolution imaging, nanophotonics, near-field optics