Results 71 to 80 of about 68,202 (308)

High-dimensional entanglement-enabled holography for quantum encryption [PDF]

open access: yesPhys. Rev. Lett. 130, 053602 (2023), 2023
As an important imaging technique, holography has been realized with different physical dimensions of light,including polarization, wavelength, and time. Recently, quantum holography has been realized by utilizing polarization entangled state with the advantages of high robustness and enhanced spatial resolution, comparing with classical one.
arxiv  

Geometric and physical configurations of meta‐atoms for advanced metasurface holography

open access: yesInfoMat, 2021
Funding information Hyundai Motor Group, Grant/Award Number: Hyundai Motor Chung MongKoo fellowship; LG Display, Grant/Award Number: LGD-SNU incubation program; National Research Foundation of Korea, Grant/Award Numbers: CAMM-2019M3A6B3030637, NRF ...
Joohoon Kim   +5 more
semanticscholar   +1 more source

Aging and holography [PDF]

open access: yesJournal of High Energy Physics, 2010
Aging phenomena are examples of `non-equilibrium criticality' and can be exemplified by systems with Galilean and scaling symmetries but no time translation invariance. We realize aging holographically using a deformation of a non-relativistic version of gauge/gravity duality.
Juan I. Jottar   +3 more
openaire   +3 more sources

3D differential interference contrast microscopy using polarisation‐sensitive tomographic diffraction microscopy

open access: yesJournal of Microscopy, Volume 289, Issue 2, Page 128-133, February 2023., 2023
Summary Tomographic diffraction microscopy (TDM) is a generalisation of digital holographic microscopy (DHM), for which the illumination angle onto the sample is fully controlled, which has become a tool of choice for 3D, high‐resolution imaging of unlabelled samples.
Nicolas Verrier   +4 more
wiley   +1 more source

Metasurface holography: from fundamentals to applications [PDF]

open access: yesNanophotonics, 2018
Holography has emerged as a vital approach to fully engineer the wavefronts of light since its invention dating back to the last century. However, the typically large pixel size, small field of view and limited space-bandwidth impose limitations in the ...
Lingling Huang   +2 more
semanticscholar   +1 more source

High-dimensional orbital angular momentum multiplexing nonlinear holography

open access: yesAdvanced Photonics, 2021
Nonlinear holography has been identified as a vital platform for optical multiplexing holography because of the appearance of new optical frequencies. However, due to nonlinear wave coupling in nonlinear optical processes, the nonlinear harmonic field is
Xinyuan Fang   +6 more
semanticscholar   +1 more source

Polarization fields in GaN/AlN nanowire heterostructures studied by Off axis holography [PDF]

open access: yesJournal of Physics: Conference Series 471 (2013) 012019, 2014
In this work, we present an off-axis holography study of GaN/AlN heterostructured nanowires grown by plasma-assisted molecular-beam epitaxy. We discuss the sample preparation of nanowire samples for electron holography and combine potential profiles obtained using holography with theoretical calculations of the projected potential in order to gain ...
arxiv   +1 more source

Fabrication Method for Spin-Coating ITO-Competitive PEDOT:PSS onto PVDF Film

open access: yesInternational Journal of Polymer Science
This paper shows a four-order reduction of magnitude in sheet resistance for spin-coating poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) onto polyvinylidene fluoride (PVDF) film for a final sheet resistance comparable to commercially ...
Luke Johnson   +6 more
doaj   +1 more source

Nanooptical elements for visual verification

open access: yesScientific Reports, 2021
This paper focuses on the development of flat diffractive optical elements (DOEs) for protecting banknotes, documents, plastic cards, and securities against counterfeiting.
Alexander Goncharsky   +3 more
doaj   +1 more source

An investigation of AdS2 backreaction and holography [PDF]

open access: yes, 2016
A bstractWe investigate a dilaton gravity model in AdS2 proposed by Almheiri and Polchinski [1] and develop a 1d effective description in terms of a dynamical boundary time with a Schwarzian derivative action.
Julius Engelsöy   +2 more
semanticscholar   +1 more source

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