6 research outputs found
All-Dielectric Meta-optics for High-Efficiency Independent Amplitude and Phase Manipulation
Metasurfaces, composed of subwavelength scattering elements, have
demonstrated remarkable control over the transmitted amplitude, phase, and
polarization of light. However, manipulating the amplitude upon transmission
has required loss if a single metasurface is used. Here, we describe
high-efficiency independent manipulation of the amplitude and phase of a beam
using two lossless phase-only metasurfaces separated by a distance. With this
configuration, we experimentally demonstrate optical components such as
combined beam-forming and splitting devices, as well as those for forming
complex-valued, three-dimensional holograms. The compound meta-optic platform
provides a promising approach for achieving high performance optical
holographic displays and compact optical components, while exhibiting a high
overall efficiency
Antireflection and Wavefront Manipulation with Cascaded Metasurfaces
10.1103/PhysRevApplied.14.064044Physical Review Applied14606404