Results 51 to 60 of about 12,678 (263)
Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, EarlyView.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
Partial Monte Carlo sampling for computer generated holograms
Engineering ReportsCGH is considered as the key technology to integrate synthetic 3D imaging to get best photo‐realistic rendering quality and optimum viewing experience.
Alfonso Blesa +2 more
doaj +1 more source
Generation of Generalized-Gauss Laser Beams via a Spatial Light Modulator [PDF]
, 2018 Generalized-Gauss laser beams can be described as a continuous transition between the well-known Hermite-Gauss (HG) and Laguerre-Gauss (LG) laser beams.
Conry Young, Jessica P, Dix, Samantha
core +3 more sources
Nonplanar photolithography with computer-generated holograms [PDF]
Optics Letters, 2005 We outline a method for accomplishing photolithography on grossly nonplanar substrates. First we compute an approximation of the diffraction pattern that will produce the desired light-intensity distribution on the substrate to be patterned. This pattern is then digitized and converted into a format suitable for manufacture by a direct-write method ...
Maiden, A. +6 more
openaire +4 more sources
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Interpolation-Filtering Method for Image Improvement in Digital Holography
Applied SciencesDigital holography is actively used for the characterization of objects and 3D-scenes, tracking changes in medium parameters, 3D shape reconstruction, detection of micro-object positions, etc.
Alexander V. Kozlov +5 more
doaj +1 more source
Holographic generation of highly twisted electron beams [PDF]
, 2014 Free electrons can possess an intrinsic orbital angular momentum, similar to those in an electron cloud, upon free-space propagation. The wavefront corresponding to the electron's wavefunction forms a helical structure with a number of twists given by ...
Boyd, Robert W. +5 more
core +2 more sources
Advanced Functional Materials, EarlyView.Modular diffractive deep neural network metasurfaces encode and reconstruct holograms across layer combinations and wavelengths, enabling secure, multifunctional operation. Each layer acts independently yet composes jointly, yielding up to m(2N −1) channels for m wavelengths and N layers.
Cherry Park +4 more
wiley +1 more source
Triplicator phase-only hologram and its use as a snapshot optical convolver and correlator
Journal of the European Optical Society-Rapid PublicationsIn this work we extend the optimum phase triplicator diffraction grating profile to a phase-only hologram. This modified hologram generates three equally-energetic orders with the highest diffraction efficiency, yielding a direct version and an inverted ...
Gao Shang +3 more
doaj +1 more source
Synthesis of an arbitrary axial field profile by computer-generated holograms [PDF]
, 1994 Computer-generated holograms are employed to design any desired intensity distribution along the propagation axis for a finite specified ...
Rosen, Joseph, Yariv, Amnon
core +1 more source