Results 91 to 100 of about 128,668 (300)
Advanced Science, EarlyView.Acoustic holograms act as key tools for information encryption, yet current schemes limit encryption dimensionality/security and require time‐consuming decryption. A compact device integrates multi‐dimensional cascaded acoustic holography with particle manipulation, employs extra secret keys, enables rapid decryption, and is validated via 1D/2D/3D ...
Qin Lin +8 more
wiley +1 more source
Holographic fabrication of reconfigurable diffractive elements [PDF]
EPJ Web of ConferencesThe fabrication of Diffractive Optical Elements (DOEs) involves the analog patterning of material surfaces on the scale of light wavelength. This typically requires multi-step lithographic processes.
Reda Francesco +4 more
doaj +1 more source
Holographic optical elements: Fabrication and testing [PDF]
The basic properties and use of holographic optical elements were investigated to design and construct wide-angle, Fourier-transform holographic optical systems for use in a Bragg-effect optical memory. The performance characteristics are described along
Ralston, L. M., Shareck, M., Zech, R. G.
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Advanced Science, EarlyView.Transition metal and chalcogen substituents are introduced into 2D antiferromagnet, NiPS3, and comprehensive photoluminescence and Raman spectroscopy studies are conducted to investigate how spin orbit entangled exciton and two magnon scattering evolve as functions of substituent concentration.
Cong Tai Trinh +12 more
wiley +1 more source
PhotonicsInfrared optical vortices are used in the field of optical communications at wavelengths around 1550 nm. A versatile method to generate them is with a Spatial Light Modulator (SLM); however, they are expensive devices and cannot be easily integrated into
Álvaro Paredes-Amorín +3 more
doaj +1 more source
Multifacet holographic optical elements [PDF]
New types of holographic optical elements, combining the flexibility of computer generated holograms with the large space bandwidth product and high diffraction efficiency of interferometrically recorded volume phase holograms, are demonstrated.
Case, S. K., Haugen, P. R.
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Quantum teleportation of optical images with frequency conversion
, 2006 We describe a new version of continuous variables quantum holographic teleportation of optical images. Unlike the previously proposed scheme, it is based on the continuous variables quantum entanglement between the light fields of different frequencies ...
A. Furusawa +12 more
core +1 more source
Advanced Science, EarlyView.This work provides a multifunctional programmable transmissive metasurface with phase and amplitude manipulation capability in the sub‐6G band. By applying different coding strategies, the proposed metasurface can realize vortex beam generation, holographic imaging under phase coding mode, and multi‐beam forming in phase‐amplitude joint coding mode ...
Hao Tian Shi +8 more
wiley +1 more source
Manipulating light at distance by a metasurface using momentum transformation
, 2014 A momentum conservation approach is introduced to manipulate light at distance using metasurfaces. Given a specified field existing on one side of the metasurface and specified desired field transmitted from the opposite side, a general momentum boundary
Caloz, Christophe, Salem, Mohamed A.
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New Photo-Thermo-Refractive Glasses for Holographic Optical Elements: Properties and Applications
, 2017 This chapter presents a survey of recent achievements of the ITMO University (St. Petersburg, Russia) in developing new holographic media such as fluoride, chloride, and bromide silicate photo-thermo-refractive (PTR) glasses as well as the holographic ...
N. Nikolay +3 more
semanticscholar +1 more source