Results 91 to 100 of about 1,085,446 (213)
Electron, EarlyView.Physics‐driven advances in optical nanobiosensors for rapid, miniaturized, and point‐of‐care diagnostics for next‐generation decentralized and personalized healthcare based on sensor intelligence. ABSTRACT Public health emergencies and the escalating burden of chronic diseases necessitate a paradigm shift from centralized laboratory testing to rapid ...
Vishal Chaudhary +5 more
wiley +1 more source
Grating‐Lens Empowered Metafiber for Large‐Angle Light Collection With 3D Nanoprinted Structures
Laser &Photonics Reviews, EarlyView.A grating‐lens‐based Metafiber enables efficient light coupling into single‐mode fibers at large incidence angles. By combining diffraction and focusing on the fiber facet using a 3D nanoprinted holographic structure, light is selectively coupled only at specific angles while suppressing unwanted signals. This approach achieves high coupling efficiency
Jun Sun, Markus A. Schmidt
wiley +1 more source
Boltzmann Entropy, the Holographic Bound and Newtonian Cosmology
Proceedings, 2017 The holographic principle sets an upper bound on the total (Boltzmann) entropy content of the Universe at around 10 123 k B ( k B being Boltzmann’s constant).
Pedro Fernández De Córdoba +1 more
doaj +1 more source
HoloSpec: Dispersion‐Based 4D Computational Holographic Hyperspectral Imaging
Laser &Photonics Reviews, EarlyView.HoloSpec, a compact dispersion‐based computational holographic system, achieves four‐dimensional imaging by retrieving 3D spatial structure and high‐resolution spectra from only two monochromatic snapshots. Using a single prism and a monochrome sensor, it resolves 430 spectral channels with 3 nm experimental resolution and 30 μm$\mathrm{\mu}\mathrm{m}$
Jingyan Chen +3 more
wiley +1 more source
The Holographic Principle in a Cosmological Setting [PDF]
, 2003 We study the holographic principle in a cosmological context. First, entropy bounds are derived from the holographic principle and applied within a Anti-de Sitter spacetime.
Savonije, Ivo Lothar
core +14 more sources
The baryonic phase in holographic descriptions of the QCD phase diagram
, 2012 We study holographic models of the QCD temperature-chemical potential phase diagram based on the D3/D7 system with chiral symmetry breaking. The baryonic phase may be included through linked D5-D7 systems. In a previous analysis of a model with a running
Kim, K.-Y. +10 more
core +1 more source
The holographic multi-entropy cone
Journal of High Energy PhysicsWe generalize the holographic entropy cone (HEC) to the holographic multi-entropy cone (HMEC) by adjoining multi-entropy coordinates to the standard entropy coordinates.
Xin-Xiang Ju, Yang Zhao
doaj +1 more source
Holographic Screens in Ultraviolet Self-Complete Quantum Gravity
Advances in High Energy Physics, 2014 This paper studies the geometry and the thermodynamics of a holographic screen in the framework of the ultraviolet self-complete quantum gravity. To achieve this goal we construct a new static, neutral, nonrotating black hole metric, whose outer (event ...
Piero Nicolini, Euro Spallucci
doaj +1 more source
Entanglement Entropy of AdS Black Holes
Entropy, 2010 We review recent progress in understanding the entanglement entropy of gravitational configurations for anti-de Sitter gravity in two and three spacetime dimensions using the AdS/CFT correspondence.
Maurizio Melis, Mariano Cadoni
doaj +1 more source
Generating Helical Polymorphic Beams Using Dielectric Metasurfaces
Laser &Photonics Reviews, EarlyView.Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh +3 more
wiley +1 more source