Optical metasurfaces with subwavelength thickness hold considerable promise for future
advances in fundamental optics and novel optical applications due to their unprecedented …

Free from phase-matching constraints, plasmonic metasurfaces have contributed
significantly to the control of optical nonlinearity and enhancement of nonlinear generation …

The term Poincaré beam, which describes the space-variant polarization of a light beam
carrying spin angular momentum (SAM) and orbital angular momentum (OAM), plays an …

Geometric phase is a unifying and central concept in physics, including optics. As a matter of
fact, optics played a pivotal role from the inception of this new paradigm, as some of the first …

Janus monolayers, a class of two‐faced 2D materials, have received significant attention in
electronics, due to their unusual conduction properties stemming from their inherent out‐of …

In terahertz (THz) technologies, generation and manipulation of THz waves are two key
processes usually implemented by different device modules. Integrating THz generation and …

The geometric phase concept has profound implications in many branches of physics, from
condensed matter physics to quantum systems. Although geometric phase has a long …

Artificial microstructures, which allow us to control and change the properties of wave fields
through changing the geometrical parameters and the arrangements of microstructures …

Nonlinear wavefront control is a crucial requirement in realizing nonlinear optical
applications with metasurfaces. Numerous aspects of nonlinear frequency conversion and …

Metasurfaces, benefiting from the flexibility in engineering the resonance, near-field,
symmetry, and scattering properties of individual building blocks, are promising not only for …