Metasurfaces and planar photonic crystals are two classes of subwavelength diffractive
optical devices offering novel functionalities. The former employ independently operating …

As optical metasurfaces become progressively ubiquitous, the expectations from them are
becoming increasingly complex. The limited number of structural parameters in the …

Metamaterial absorbers have been a topic of considerable interest in recent years, with a
particular focus on Terahertz (THz) frequencies due to many natural materials having a …

Optical dispersion, the variation of the speed of light with frequency in a material, presents
significant challenges in modern optical systems, including chromatic aberration and pulse …

An optical device for aberration correction (eg, chromatic aberration correction) is disclosed.
The optical device includes an optical component (eg, a spherical lens) and a metasurface …

Diffractive optical elements (DOEs) are thin, light-weight devices capable of shaping light
both spatially and spectrally. Classical light is a multivariate vector field: at each wavelength …

The past decade has seen an explosion of development in new devices, modalities, and
architectures for advanced sensing, computation, and communication. This growth has been …