Super-resolution microscopy

Super-resolution microscopy is a series of super-resolution imaging techniques in optical microscopy that allow such images to have resolutions higher than those imposed by the diffraction limit, which is due to the diffraction of light. Super-resolution imaging techniques rely on the near-field (photon-tunneling microscopy as well as those that use the Pendry Superlens and near field scanning optical microscopy) or on the far-field.

Source: Wikipedia — Super-resolution microscopy (CC BY-SA 4.0)