A research team at POSTECH has developed a novel multidimensional sampling theory to overcome the limitations of flat optics. Their study not only identifies the constraints of conventional sampling ...

With rapid advancement in data acquisition technology (i.e.analog-to-digital and digital-to-analog converters) and the explosive introduction of micro-computers, selected complex linear and nonlinear ...

Scattering-type scanning near-field optical microscopy (s-SNOM) allows spectroscopic imaging with spatial resolution below the diffraction limit. With suitable light sources, s-SNOM is instrumental in ...

Sampling theory in shift-invariant spaces extends classical bandlimited reconstruction to a broad class of function spaces generated by the integer shifts of one or more prototype functions. In this ...

When electrical engineers hear the name "Nyquist," they think of what Harry Nyquist is best known for: his Sampling Theorem. Evidence of its importance is everywhere. Products like cell phones, audio ...

Mathematics has long been accepted as a tool to model the physical reality. For many it is hard to grasp that math actually “does something.” The reality is that mathematics based instructions in ...