Superlens
![The Binocular microscope is a conventional optical system. Spatial resolution is confined by a diffraction limit that is a little above 200 nanometers.](/Images/godic/202501/19/Loupe-binoculaire-p10308913800.jpg")
![Schematic depictions and images of commonly used metallic nanoprobes that can be used to see a sample in nanometer resolution. Notice that the tips of the three nanoprobes are 100 nanometers.[4]](/Images/godic/202501/19/Commonly_used_metallic_nanoprobes3800.jpg")
![DVD – A DVD is a large, fast compact digital disk that can hold video, audio, and/or computer data. A laser is employed for data transfer.](/Images/godic/202501/19/DVD3800.png")
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A practical superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution. Many lens designs have been proposed that go beyond the diffraction limit in some way, but there are constraints and obstacles involved in realizing each of them.