Results 171 to 180 of about 103,433 (302)
Portable Filter-Free Lens-Free Incoherent Digital Holography System
A portable incoherent digital holography system without a polarization filter or a refractive lens was developed. Phase-shifted self-interference incoherent holograms of light diffracted from an object were generated without attenuation due to a ...
Tatsuki Tahara
doaj +1 more source
Fresnel Magnetic Imaging of Ultrasmall Skyrmion Lattices
This study uncovers periodic contrast reversal in ultrasmall skyrmion lattice imaging through defocus‐modulated Fresnel magnetic microscopy, elucidating its origin in the sinusoidal contrast transfer function mechanism and providing fundamental insights into defocus‐mediated phase‐to‐intensity conversion processes in nanoscale magnetic imaging ...
Yongsen Zhang +11 more
wiley +1 more source
Phase retrieval of an electron vortex beam using diffraction holography [PDF]
Federico Venturi +8 more
openalex +1 more source
High-speed full-color computer-generated holography using a digital micromirror device and fiber-coupled RGB laser diode [PDF]
Shuhei Yoshida
openalex +1 more source
Programmable Chiral Radiation via Spin‐Decoupled Metasurface with Integrated Compound Phases
A programmable spin‐decoupled metasurface integrating propagation and geometric phases enables high‐purity chiral radiation with reconfigurable emission direction. Spin‐selective radiators combined with a compound phase decoupling strategy suppress undesired components, while embedded PIN diodes allow real‐time directional control.
Lu Song +8 more
wiley +1 more source
Phase added sub-stereograms for accelerating computer generated holography
David Blinder, Peter Schelkens
openalex +1 more source
Water‐Wave Pancharatnam‐Berry Phase Induced by 4D Spin‐Orbit State Evolution
The first observation of the Pancharatnam‐Berry (PB) phase in water waves is reported, revealing its extraordinary properties including unbounded phase values, spin‐momentum‐locked unidirectional channels, and a Poincaré hypersphere representation. These findings demonstrate the universality of the PB phase across different wave systems and in higher ...
Wanyue Xiao +3 more
wiley +1 more source
Multi‐modal optical imaging reveals microvascular pulsatility in the brain cortex of awake and anaesthetized mice. Awake hemodynamics in male mice are found to be remarkably stable until late life, with flow pulsatility being significantly higher than in females, despite similar average perfusion.
Mia Viuf Skøtt +5 more
wiley +1 more source
Orbital Angular Momentum Meta‐Holography with Full‐Polarization Control
This work demonstrates full‐polarization‐controlled orbital angular momentum (OAM) holography using a single‐layer dielectric metasurface. By independently modulating the complex‐amplitude distributions of two circular polarizations, arbitrary spatially varying polarization is achieved while preserving OAM properties.
Yue Han +6 more
wiley +1 more source

