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 ...

Sampling is a pivotal element in the design of metasurfaces, enabling a broad spectrum of applications. Despite its flexibility, sampling can result in reduced efficiency and unintended diffractions, ...

Nyquist pulse generation underpins modern high-speed optical communications by producing sinc-shaped waveforms that occupy the minimum spectral bandwidth for a given data rate. These pulses, ...