Subwavelength imaging refers to the ability to capture or visualize details smaller than the wavelength of the light or other waves used for imaging. This is pivotal in nanotechnology, where the structures of interest are often much smaller than the wavelength of visible light, typically in the range of 1-100 nanometers. Traditional optical microscopes are limited by the diffraction limit, which prevents them from resolving features smaller than approximately half the wavelength of the light used.
