Compound Vector Light Generator Based on a Metasurface

Metasurface holograms for visible light

Holography, a revolutionary 3D imaging technique, has been developed for storing and recovering the amplitude and phase of light scattered by objects. Later, single-beam computer-generated phase holography was proposed for restoring the wavefront from a given incidence. However, because the phase modulation depends on the light propagation inside the material, the thickness of phase holograms u...

A retargetable vector code generator

This paper describes the prototype implementation of a retargetable vector code generator which applies recent advances in automatic (scalar) code generation techniques to the task of generating code for a vector source language. The source language is a subset of Fortran 8X, the proposed successor to the Fortran 77 standard. The target machine is an attached vector processor. This work extends...

Dynamic metasurface lens based on MEMS technology

Visible light focusing flat lenses based on hybrid dielectric-metal metasurface reflector-arrays

Conventional metasurface reflector-arrays based on metallic resonant nanoantenna to control the wavefront of light for focusing always suffer from strong ohmic loss at optical frequencies. Here, we overcome this challenge by constructing a non-resonant, hybrid dielectric-metal configuration consisting of TiO2 nanofins associated with an Ag reflector substrate that provides a broadband response ...

Slowing down light using a dendritic cell cluster metasurface waveguide

Slowing down or even stopping light is the first task to realising optical information transmission and storage. Theoretical studies have revealed that metamaterials can slow down or even stop light; however, the difficulty of preparing metamaterials that operate in visible light hinders progress in the research of slowing or stopping light. Metasurfaces provide a new opportunity to make progre...