There has been substantial interest in miniaturizing optical systems by flat optics. However,
one essential optical component, free space, fundamentally cannot be substituted with …

Most optical systems involve a combination of lenses separated by free-space regions
where light acquires the required angle-dependent phase delay for a certain functionality …

We present full-Maxwell topology-optimization design of a single-piece multilayer metalens,
about 10 wavelengths λ in thickness, which simultaneously focuses over a 60 angular range …

Multilevel diffractive lenses (MDLs) have emerged as an alternative to both conventional
diffractive optical elements (DOEs) and metalenses for applications ranging from imaging to …

The thinnest possible camera is achieved by removing all optics, leaving only the image
sensor. We train deep neural networks to perform multi-class detection and binary …

The past twenty years have witnessed the advent and extensive study of metamaterials and,
more recently, metasurfaces. These concepts have widely extended the range of available …

Multilevel diffractive lenses (MDLs) have emerged as an alternative to both conventional
diffractive optical elements (DOEs) and metalenses for applications ranging from imaging to …

Transformation optics is a new and highly active field of research, which employs the
mathematics of differential geometry to design optical materials and devices with unusual …

Using Inverse Design to Devise a Space-Compressing Optic Page 1 Using Inverse Design to
Devise a Space-Compressing Optic Jordan TR Pagé1,2,*, Orad Reshef¹, Robert W. Boyd1,2,3 …