One dimensional sub-wavelength gratings, also known as metagratings have attracted
enormous attention due to the relatively simpler design configurations with versatile …

Terahertz waves are finding important applications in diverse fields, and meanwhile the
manipulation of terahertz waves calls for the development of various functional devices …

It is well known that higher diffraction order suggests a stronger dispersion for gratings with
the same period. Here, a broadband high-efficiency three-layer all-dielectric rectangular …

Periodic photonic lattices based on Guided-Mode Resonance (GMR) enable the
manipulation of the incident light, making them essential components in a plethora of optical …

Reflection losses due to refractive index mismatch limit the obtainable diffraction efficiencies
for transmission gratings in the highly dispersive regime, ie, with period to wavelength ratios …

In this paper, a novel bidirectional dual-functional metal-dielectric reflective grating with a
double-sided structure is described, which can achieve transverse-electric (TE) polarization …

We propose a nonreciprocal diffraction system based on the photonic Aharonov-Bohm
effect. The implementation utilizes the simultaneous up and down photonic transition of …

We theoretically and numerically analyze and design a three-layer rectangular-groove
dielectric grating based on modal design and rigorous numerical calculation. This three …

A simple approach based on effective medium theory is proposed and applied to evaluate
and design a polarization–insensitive antireflection metagrating for terahertz waves. The …

We design a three-layer rectangular-groove dielectric transmission grating that can be used
as a polarization-selective beam splitter. For TE polarization, the grating is equivalent to a …