Results 21 to 30 of about 32,600 (191)

The artistic use of parallax and lenses revealing the invisible in holography [PDF]

open access: yes, 2012
There are many artistic resources offered by holography: third-dimension registration and reconstruction, immateriality, color interpretation, holographic space, realism, etc.
García Robles, Rocío, Oliveira, R. M.
core   +1 more source

Imaging of Volume Phase Gratings in a Photosensitive Polymer, Recorded in Transmission and Reflection Geometry

open access: yesApplied Sciences, 2014
Volume phase gratings, recorded in a photosensitive polymer by two-beam interference exposure, are studied by means of optical microscopy. Transmission gratings and reflection gratings, with periods in the order of 10 μm down to 130 nm, were investigated.
Tina Sabel, Michael Zschocher
doaj   +1 more source

Cosmic Holography [PDF]

open access: yes, 2000
A new version of holographic principle for cosmology is proposed, which dictates that particle entropy within `cosmological apparent horizon' should not exceed gravitational entropy associated with the apparent horizon.
Bak, Dongsu, Rey, Soo-Jong
core   +2 more sources

On the Space-Time Uncertainty Principle and Holography [PDF]

open access: yes, 1998
In this note further evidence is collected in support of the claim that the space-time uncertainty principle implies holography, both within the context of Matrix Theory and the framework of the proposed duality between certain conformal field theories ...
Awata   +7 more
core   +2 more sources

Spatially Resolved Analysis of Bragg Selectivity

open access: yesApplied Sciences, 2015
This paper targets an inherent control of optical shrinkage in photosensitive polymers, contributing by means of spatially resolved analysis of volume holographic phase gratings.
Tina Sabel
doaj   +1 more source

Application of Lippmann interference photography to data storage [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2008
Lippmann’s interference photography is an elegant process to record coloured images in the volume of a sensitive material. We propose to use this technique for wavelength multiplexed data storage in a page-oriented approach.
Contreras Kevin   +3 more
doaj   +1 more source

Study of Full-Color Multiplexed Transmission Holograms of Diffusing Objects Recorded in Photopolymer Bayfol HX

open access: yesPhotonics, 2021
A wavelength multiplexing procedure for color transmission volume holograms of diffusing objects recorded in Bayfol® HX200 photopolymer is proposed. For the recording, three lasers of 442 nm, 532 nm and 633 nm, and a Spectralon® diffusing object were ...
Marina Sevilla   +4 more
doaj   +1 more source

Compressive Holographic Video [PDF]

open access: yes, 2016
Compressed sensing has been discussed separately in spatial and temporal domains. Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths from a single 2D image.
Chen, Huaijin   +6 more
core   +5 more sources

Inherent Holography In Fuzzy Spaces and An N-tropic Approach To The Cosmological Constant Problem [PDF]

open access: yes, 2006
In this letter we show that the noncommutative spaces, and in particular fuzzy spheres, are natural candidates which explicitly exhibit the holography, by noting that the smallest physically accessible volume is much larger that the expected Planckian ...
Abe   +25 more
core   +2 more sources

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