In 1873, Ernst Abbe proposed the famous diffraction limit theory, stating that the resolution of an optical system is limited by the light wavelength ...

Angular resolution is a crucial metric for RF direction-finding systems, representing their ability to distinguish between signals incident from two closely adjacent angles. However, due to the ...

The printable resolution is visible lightDiffraction limitIts value is determined by about 100,000 dpi. However, with such a method of blending a large number of dyes, this limit can not be reached ...

Researchers have developed a new microscope that can visualize the optical response of surfaces at an unprecedented spatial resolution of one nanometer. This paves the way for optical microscopy of ...

Schematic of the planar device for producing dark- field speckle patterns. (Image from USTC). Credit: Douguo Zhang et al. Researchers from the University of Science and Technology of China (USTC) have ...