Results 191 to 200 of about 18,795 (259)

Multispectral Concentric Grafted Perfect Vector Vortex Beam

open access: yesLaser &Photonics Reviews, EarlyView.
Multispectral structured light offers powerful opportunities for increasing information capacity. A multispectral concentric grafted perfect vector vortex beam is proposed to engineer topological charges and polarization. A metasurface can graft different perfect vector vortex beams across concentric spatial regions and extend this concept to ...
Guanchao Wang   +6 more
wiley   +1 more source

Ultrathin Microlens Arrays for Dynamic Beam Shaping Based on 3D Lithography. [PDF]

open access: yesMicromachines (Basel)
Cheng R   +5 more
europepmc   +1 more source

High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands

open access: yesLaser &Photonics Reviews, EarlyView.
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan   +4 more
wiley   +1 more source

Facile, etch-free atomic layer-coated resist templates for rapid prototyping of efficient visible metasurfaces. [PDF]

open access: yesMicrosyst Nanoeng
Seong J   +8 more
europepmc   +1 more source

A Single-Layer Full-Color Diffractive Waveguide by Lithography. [PDF]

open access: yesNanomaterials (Basel)
Li Y   +5 more
europepmc   +1 more source

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