A new plasmonic fiber probe uses linearly polarized light and energy recycling for broadband nanofocusing with resolution ...

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 ...

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 ...

Pushing optical imaging below the diffraction limit usually requires complicated illumination schemes and still suffers from weak, unstable signals ...

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 ...

Researchers achieved nanometer-scale resolution without requiring a dark state, expanding super-resolution imaging to non-fluorescent molecules and non-optical waves. The findings published in Nature ...

Achieving optical imaging beyond the diffraction limit imposed by a single finite aperture remains an important objective in astronomy, remote ...