Results 41 to 50 of about 32,600 (191)

Holographic M5 branes in AdS 7 × S 4

open access: yesJournal of High Energy Physics, 2021
We study classical M5 brane solutions in the probe limit in the AdS 7 × S 4 background geometry that preserve the minimal amount of supersymmetry. These solutions describe the holography of codimension-2 defects in the 6d boundary dual N $$ \mathcal{N} $$
Varun Gupta
doaj   +1 more source

Transpyrenean Encounter on Advanced Materials

open access: yesMaterials and Devices, 2017
TEAM1 has taken place in Sete (France) on 4, 5, 6 july 2017. It has gathered a little less than 40 participants who presented communications on various fields of advanced materials, and on experimental facilities or experimental methods, that are briefly
Pierre Saint-Grégoire
doaj   +1 more source

Holographic Cosmology and its Relevant Degrees of Freedom [PDF]

open access: yes, 1999
We reconsider the options for cosmological holography. We suggest that a global and time--symmetric version of the Fischler-Susskind bound is the most natural generalization of the holographic bound encountered in AdS and De Sitter space.
Dawid, Richard
core   +6 more sources

Modelling a Holographic Particle Counter

open access: yesProceedings, 2018
In order to design an imaging unit of a novel holographic particle counter an aerosol particle model was developed to generate a virtual hologram plane of an aerosol volume of interest.
Georg Brunnhofer, Alexander Bergmann
doaj   +1 more source

Holography, Fourier Optics, and Beyond Photonic Crystals: Holographic Fabrications for Weyl Points, Bound States in the Continuum, and Exceptional Points

open access: yesAdvanced Photonics Research, 2021
Since the 1990s, applications of holography and Fourier optics have been significantly expanded from the spatial modulation of light propagation to the nanofabrication of superlattices.
Yongjun Lim   +5 more
doaj   +1 more source

Ultrafast volume holography for stretchable photonic structures

open access: yesOptics Express, 2019
Stretchability and flexibility are two key requirements for manipulating the propagation of light in compact and high-performance lab-on-a-chip systems. These requirements are best met by embedding stretchable and flexible tuning elements such as volume phase gratings (VPGs) in polydimethylsiloxane (PDMS), making them attractive alternatives to ...
Nicholas Cheng Yang Tham   +3 more
openaire   +3 more sources

Hologrphy and holographic dark energy model

open access: yes, 2005
The holographic principle is used to discuss the holographic dark energy model. We find that the Bekenstein-Hawking entropy bound is far from saturation under certain conditions.
't Hooft G   +22 more
core   +2 more sources

Determination of Radiation Pressure in Acoustic Levitation by Optical Acoustic-Field Measurement

open access: yesIEEE Access, 2019
Pulsed digital holography was used to determine the acoustic radiation force on objects suspended in a single-axis acoustic levitator. Digital holography provided both the object images and the optical phase data required to determine the instantaneous ...
James J. Scire
doaj   +1 more source

Photomechanical Solid Polymers: Model for Pressure and Strain Induced by Photoisomerization and Photo-Orientation

open access: yesApplied Sciences, 2022
Photoactive polymers are important for fundamental studies and applications in several area of photonics such as data storage and holography and nonlinear optics and photomechanics.
Zouheir Sekkat
doaj   +1 more source

Particles concentration and distribution over fixed rippled beds under waves by digital in-line holography

open access: yesComptes Rendus. Mécanique, 2022
Digital in-line holography (DIH) measurements are performed in a wave flume tank to study the three dimensional distribution of spherical Polyvincyl Chloride (PVC) particles over three fixed rippled beds under regular water waves.
Mallat, Bachar   +3 more
doaj   +1 more source

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