Like amplitude, phase and frequency, polarization is one of the fundamental properties of
light, which can be used to record, process and store information. Optical metasurfaces are …

Unlike traditional optical components, which rely on the gradual accumulation of light along
the optical path over a distance much larger than the wavelength to form a wavefront …

Electromagnetic metastructures stand for the artificial structures with a characteristic size
smaller than the wavelength, which may efficiently manipulate the states of light. However …

Fourier optics, the principle of using Fourier transformation to understand the functionalities
of optical elements, lies at the heart of modern optics, and it has been widely applied to …

Achromatic metalens composed of arrays of subwavelength nanostructures with spatially
varying geometries is attractive for a number of optical applications. However, the limited …

Metasurfaces, two dimensional (2D) metamaterials comprised of subwavelength features,
can be used to tailor the amplitude, phase and polarisation of an incident electromagnetic …

Silicon nitride (Si N) is one of the emerging semiconductor materials that are used in both
linear and nonlinear all-optical integrated devices. Its excellent dielectric properties, high …

Traditional objective lenses in modern microscopy, based on the refraction of light, are
restricted by the Rayleigh diffraction limit. The existing methods to overcome this limit can be …

Photonic metasurface, a 2D array of plasmonic or dielectric optical meta-atoms, provides a
versatile and compact platform for manipulating the polarization, phase and amplitude of …

In this paper, we propose a broadband infrared stealth metamaterial absorber based on an
improved metal-dielectric-metal structure where its top pattern consists of multi-layers. The …