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

BACKGROUND Future high-performance portable and wearable optical devices and
systems with small footprints and low weights will require components with small form …

The research and development of optical metasurfaces has been primarily driven by the
curiosity for novel optical phenomena that are unattainable from materials that exist in nature …

We present a computational framework for efficient optimization-based “inverse design” of
large-area “metasurfaces”(subwavelength-patterned surfaces) for applications such as multi …

Compact varifocal lenses are essential to various imaging and vision technologies.
However, existing varifocal elements typically rely on mechanically actuated systems with …

In this study, three samples of commercial titanium dioxide nanoparticles (TiO2) in different
sizes were used to investigate their effect on the formulation of sunscreen creams. The aim …

The high refractive indexes and low optical losses of dielectrics are preferred for designing
highly efficient metasurfaces with unprecedented wavefront control such as near-unity …

The realization of hybrid optics could be one of the best ways to fulfill the technological
requirements of compact, light-weight, and multi-functional optical systems for modern …

Electromagnetic wave absorbers have been investigated for many years with the aim of
achieving high absorbance and tunability of both the absorption wavelength and the …

We demonstrate optimization of optical metasurfaces over 10^ 5–10^ 6 degrees of freedom
in two and three dimensions, 100–1000+ wavelengths (λ) in diameter, with 100+ parameters …