Label‐free super‐resolution (LFSR) imaging relies on light‐scattering processes in
nanoscale objects without a need for fluorescent (FL) staining required in super‐resolved FL …

Contents Introduction................................................... 264Classic Approaches................................
........... 265 Recent Approaches........................................... 266Sparse Phase …

The Gerchberg–Saxton (GS) algorithm, which retrieves phase information from the
measured intensities on two related planes (the source plane and the target plane), has …

Ptychography is a particularly powerful coherent diffraction imaging technique. In
ptychography, a localized beam that illuminates the object is scanned in a step-wise fashion …

The problem of recovering a signal from its phaseless Fourier transform measurements,
called Fourier phase retrieval, arises in many applications in engineering and science …

Frequency-resolved optical gating (FROG) is a very popular technique for complete
characterization of ultrashort laser pulses. In FROG, a reconstruction algorithm retrieves the …

For more than a century, the wavelength of light was considered to be a fundamental limit on
the spatial resolution of optical imaging. Particularly in light microscopy, this limit, known as …

In intensity-modulation and direct-detection (IM-DD) communication systems, electrical
chromatic dispersion (CD) compensation cannot be directly applied in the transceivers due …

The Abbe diffraction limit, which relates the maximum optical resolution to the numerical
aperture of the lenses involved and the optical wavelength, is generally considered a …

In this comprehensive review, we delve into super-resolution optical imaging techniques
and their diverse applications. Our primary focus is on linear optics super-resolution …