Results 81 to 90 of about 68,202 (308)

Holography for fermions

open access: yesJournal of High Energy Physics, 2004
The holographic interpretation is a useful tool to describe 5D field theories in a 4D language. In particular it allows one to relate 5D AdS theories with 4D CFTs. We elaborate on the 5D/4D dictionary for the case of fermions in AdS$_5$ with boundaries.
CONTINO, ROBERTO, Pomarol, Alex
openaire   +5 more sources

Scalable Lithium Niobate Nanoimprinting for Nonlinear Metalenses

open access: yesAdvanced Materials, EarlyView.
A broadband polycrystalline lithium niobate platform is developed for highly versatile and scalable fabrication of nonlinear metasurfaces. This work demonstrates simultaneous second harmonic generation and wavefront‐shaping via a metalens on this platform.
Ülle‐Linda Talts   +3 more
wiley   +1 more source

Exploring shot noise and Laser Doppler imagery with heterodyne holography [PDF]

open access: yes, 2012
Heterodyne Holography is a variant of Digital Holography, where the optical frequencies of signal and reference arms can be freely adjusted by acousto-optic modulators. Heterodyne Holography is an extremely versatile and reliable holographic technique, which is able the reach the shot noise limit in sensitivity at very low levels of signal.
arxiv   +1 more source

Michelson Holography: Dual-SLM Holography with Camera-in-the-loop Optimization [PDF]

open access: yes, 2020
We introduce Michelson Holography (MH), a holographic display technology that optimizes image quality for emerging holographic near-eye displays. Using two spatial light modulators, MH is capable of leveraging destructive interference to optically cancel out undiffracted light corrupting the observed image.
arxiv   +1 more source

Anomaly holography

open access: yesNuclear Physics B, 2008
26 pages, references ...
Gripaios, B, West, S
openaire   +2 more sources

Deconstruction and holography [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2003
It was recently pointed out that the physics of a single discrete gravitational extra dimension exhibits a peculiar UV/IR connection relating the UV scale to the radius of the effective extra dimension. Here we note that this non-locality is a manifestation of holography, encoding the correct scaling of the number of fundamental degrees of freedom of ...
Djordje Minic   +3 more
openaire   +4 more sources

Energy Transfer from the Liquid Crystal Bulk to the Surface Enables Dynamic Topographies via Anisotropic Plasticized Networks

open access: yesAdvanced Materials Interfaces, EarlyView.
Surface topographical deformation is enhanced in liquid crystal polymer/oligomer network coatings by integrating nonreactive liquid crystal 5CB as a plasticizer, which facilitates the creation of dynamic polymer‐based solid optical devices. Abstract Surfaces with dynamic topographies play a pivotal role in modern technology by providing adaptable ...
Yuxin You   +6 more
wiley   +1 more source

X‐ray magnetic circular dichroism

open access: yesMajor Reference Works, Page 508-515., 2022
International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.

Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
Gerrit van der Laan C. Chantler   +2 more
wiley  

+1 more source

Ghost Images in Helioseismic Holography? Toy Models in a Uniform Medium [PDF]

open access: yes, 2018
Helioseismic holography is a powerful technique used to probe the solar interior based on estimations of the 3D wavefield. Porter--Bojarski holography, which is a well-established method used in acoustics to recover sources and scatterers in 3D, is also an estimation of the wavefield, and hence it has the potential to be applied to helioseismology ...
arxiv   +1 more source

Metasurface Holography with Multiplexing and Reconfigurability

open access: yesNanomaterials, 2023
Metasurface holography offers significant advantages, including a broad field of view, minimal noise, and high imaging quality, making it valuable across various optical domains such as 3D displays, VR, and color displays.
Yijun Zou   +3 more
doaj   +1 more source

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