Results 51 to 60 of about 68,202 (308)
Heterodyne Holography with full control of both signal and reference arms [PDF]
Appl. Opt. 55, A8-?A16 (2016), 2015 Heterodyne holography is a variant of phase shifting holography in which reference and signal arms are controlled by acousto optic modulators. In this review paper, we will briefy describe the method and its properties, and we will illustrate its advantages in experimental applications.
arxiv +1 more source
Robust Holographic Reconstruction by Deep Learning with One Frame
Photonics, 2023 A robust method is proposed to reconstruct images with only one hologram in digital holography by introducing a deep learning (DL) network. The U-net neural network is designed according to DL principles and trained by the image data set collected using ...
Xianfeng Xu +3 more
doaj +1 more source
Roadmap on digital holography [Invited].
Optics Express, 2021 This Roadmap article on digital holography provides an overview of a vast array of research activities in the field of digital holography. The paper consists of a series of 25 sections from the prominent experts in digital holography presenting various ...
B. Javidi +24 more
semanticscholar +1 more source
Holography for cosmology [PDF]
Physical Review D, 2010 We propose a holographic description of four-dimensional single-scalar inflationary universes, and show how cosmological observables, such as the primordial power spectrum, are encoded in the correlation functions of a three-dimensional QFT. The holographic description correctly reproduces standard inflationary predictions in the limit where a ...
P. McFadden, K. Skenderis
openaire +5 more sources
Formation of diffraction gratings in optically patternable hydrogel films
Nano Select, Volume 3, Issue 12, Page 1583-1587, December 2022., 2022 It is shown that a local change in optical properties can be induced in functionalized hydrogel films by photochemical crosslinking, making them suitable for volume holographic patterning. Applications are discussed as multifunctional biomedical material capable of integrating optical functions, such as for advanced intraocular lens (IOL) implants ...
Tina Sabel‐Grau +3 more
wiley +1 more source
Metasurface orbital angular momentum holography
Nature Communications, 2019 Allowing subwavelength-scale-digitization of optical wavefronts to achieve complete control of light at interfaces, metasurfaces are particularly suited for the realization of planar phase-holograms that promise new applications in high-capacity ...
H. Ren +11 more
semanticscholar +1 more source
Mass Hierarchies and Quantum Gravity Constraints in DKMM‐refined KKLT
Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023 Abstract We carefully revisit the mass hierarchies for the KKLT scenario with an uplift term from an anti D3‐brane in a strongly warped throat. First, we derive the bound resulting from what is usually termed “the throat fitting into the bulk” directly from the Klebanov‐Strassler geometry.
Ralph Blumenhagen +2 more
wiley +1 more source
Holography in superspace [PDF]
Journal of High Energy Physics, 2000 36 pages, LaTeX, references ...
Harlan Robins +7 more
openaire +5 more sources
AIP Advances, 2011 We report the observation of large changes in the electro-optical properties of nematic liquid crystal (NLC) due to inclusion of small concentration of 10 nm diameter gold nanoparticles (GNPs).
M. Inam +3 more
doaj +1 more source
Three-dimensional de Sitter holography and bulk correlators at late time [PDF]
, 2022 We propose an explicitly calculable example of holography on 3-dimensional de Sitter space by providing a prescription to analytic continue a higher-spin holography on 3-dimensional anti-de Sitter space. Applying the de Sitter holography, we explicitly compute bulk correlation functions on 3-dimensional de Sitter space at late time in a higher-spin ...
arxiv +1 more source