Results 21 to 30 of about 2,603 (192)
Photonics, 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
Using a holographic imager on a tethered balloon system for microphysical observations of boundary layer clouds [PDF]
Atmospheric Measurement Techniques, 2020 Conventional techniques to measure boundary layer clouds such as research aircraft are unable to sample in orographically diverse or densely populated areas.
F. Ramelli +3 more
doaj +1 more source
Novel Perspectives on the Characterization of Species-Dependent Optical Signatures of Bacterial Colonies by Digital Holography. [PDF]
PLoS ONE, 2016 The use of light diffraction for the microbiological diagnosis of bacterial colonies was a significant breakthrough with widespread implications for the food industry and clinical practice.
Igor Buzalewicz +3 more
doaj +1 more source
Holography-based quantum projector in a state space of linear photon momentum
New Journal of Physics, 2015 A transmission volume hologram is evaluated as a quantum projector operating on linear momentum states of individual photons in a four-dimensional state space.
Mark T Gruneisen +3 more
doaj +1 more source
Moment‐Based Shape‐Learning Holography for Fast Classification of Microparticles
Advanced Photonics Research, 2023 Compact computational in‐line holography based on deep learning is an attractive single‐shot approach to image microparticles dispersed in 3D volume. The particle shape contains valuable information for species classification, but the dataset acquisition
Haixin Luo +5 more
doaj +1 more source
Three-dimensional spatiotemporal focusing of holographic patterns
Nature Communications, 2016 Three-dimensional computer-generated holography cannot be implemented with temporal focusing. Here, Hernandez et al. use two spatial light modulators to control transverse- and axial-target light distribution, generating spatiotemporally focused patterns
Oscar Hernandez +5 more
doaj +1 more source
Supersymmetric black holes with spiky horizons
Journal of High Energy Physics, 2021 We use the recipe of [1] to find half-BPS near-horizon geometries in the t3 model of N = 2, D = 4 gauged supergravity, and explicitely construct some new examples.
Federico Faedo +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou +6 more
wiley +1 more source
Crossing a large-N phase transition at finite volume
Journal of High Energy Physics, 2021 The existence of phase-separated states is an essential feature of infinite-volume systems with a thermal, first-order phase transition. At energies between those at which the phase transition takes place, equilibrium homogeneous states are either ...
Yago Bea +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This Perspective highlights atom probe tomography as a powerful tool for understanding the atomic‐scale defect chemistry in HfO2‐based ferroelectrics. 3D mapping of dopants, point defects, and interface chemistry can provide new insight into defect‐driven mechanisms underpinning the ferroelectricity in the system and guide the design of more reliable ...
Kasper Hunnestad +3 more
wiley +1 more source