In the quest to realize analog signal processing using subwavelength metasurfaces, in this
paper, we present the first demonstration of programmable time-modulated metasurface …

As one of the cutting-edge technologies in advanced information science, wave-based
cryptography is a prerequisite to enable a plethora of secure encrypting platforms which can …

Wave-based signal processing has witnessed a significant expansion of interest in a variety
of science and engineering disciplines, as it provides new opportunities for achieving high …

Digital Metasurfaces have recently offered tremendous opportunities in real-time
manipulation of terahertz (THz) waves in programmable ways to reach special applications …

Recently, it was revealed that conventional gradient metasurfaces are fundamentally limited
on their overall efficiency to reroute the im**ing waves towards arbitrary directions in …

Recently, tunable metagratings have attracted substantial attention in manipulating the
diffraction of electromagnetic waves with considerable flexibility, but they are usually limited …

We theoretically formulate and experimentally demonstrate the design of metagratings
(MGs) composed of periodic rectangular grooves in a metallic medium, intended for perfect …

Realizing multifunctional applications in a simple structure has garnered great interest. For
this purpose, we theoretically and numerically demonstrate that an easy-to-fabricate …

Metasurfaces can be used to manipulate the beam direction beyond the Snell's law by the
constitutive gradient elements. Independent control of the phase response of each element …

Extra-ordinary optical transmission (EOT) through subwavelength plasmonic nanoapertures
is possible due to the funneling of light via surface plasmons (SPs) at the resonant …