Results 81 to 90 of about 61,905 (297)
Advanced Materials Interfaces, EarlyView.This review provides a detailed introduction to the fabrication and modulation of nanostructured mechano‐bactericidal surfaces and emphasizes integration of photoactive materials, chemical biocides, stimuli‐responsive self‐cleaning coatings, and electro‐mediated strategies to achieve multifunctional and synergistic antimicrobial effects, providing ...
Yiwen Zhong +8 more
wiley +1 more source
Possible Discrimination of Black Hole Origins from the Lensing Rate of DECIGO and B-DECIGO Sources
The Astrophysical Journal, 2023 In this paper, we forecast the expected detection rates and redshift distributions of gravitationally lensed gravitational waves (GWs) from three different mass distributions of primordial black holes (PBHs) and two stellar formation models of ...
Bin Liu +4 more
doaj +1 more source
Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems
Advanced Optical Materials, EarlyView.The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley +1 more source
Quasar Milli-lensing and Cold Dark Matter (TNG50) Subhaloes. I. Image Splitting
The Astrophysical JournalWe use numerical mass density profiles from the TNG50 simulation to study the impact of gravitational milli-lensing by dark matter subhaloes on the images of lensed quasars.
E. Mediavilla +3 more
doaj +1 more source
Analytical approach to strong gravitational lensing from ultracompact objects [PDF]
Physical Review D, 2019 Strong gravitational lensing from black holes results in the formation of relativistic images, in particular, relativistic Einstein rings. For objects with event horizons, the radius of the unstable light ring (photon sphere) is the lowest radius at ...
R. Shaikh +3 more
semanticscholar +1 more source
Anisotropic Second‐ and Third‐Harmonic Hermite–Gaussian Beam Generation with NbOI2 Holograms
Advanced Photonics Research, EarlyView.Anisotropic second‐ and third‐harmonic Hermite–Gaussian (HG) beam generation is demonstrated with ultrathin NbOI2 grating holograms to produce the nonlinear HG01 and HG10 modes with high anisotropy ratios. The relative magnitudes of the second‐ and third‐order nonlinear susceptibility tensor elements of NbOI2 crystal are extracted. These demonstrations
Jayanta Deka, Jie Gao, Xiaodong Yang
wiley +1 more source
Constraining the Rastall parameters in static space–times with galaxy-scale strong gravitational lensing [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Recently, Rastall gravity has undergone a significant surge in popularity. We obtain a power-law total mass-density profile for the inner region (within several effective radius) of early-type galaxies (ETGs) from the space-time structures which are ...
Rui Li +3 more
semanticscholar +1 more source
STRONG GRAVITATIONAL LENSING AND ITS COSMIC CONSTRAINTS [PDF]
Modern Physics Letters A, 2013 In this paper, we propose a new method to use the strong lensing data sets to constrain a cosmological model. By taking the ratio [Formula: see text] as cosmic observations, one can completely eliminate the uncertainty caused by the relation σSIS= fEσ0which characterizes the relation between the stellar velocity dispersion σ0and the velocity dispersion
Lixin Xu, Nannan Wang
openaire +4 more sources
Advanced Photonics Research, EarlyView.Self‐mixing interferometry is a powerful technique that brings together the exceptional sensitivity of phase measurements with the unequalled simplicity of the self‐mix configuration based on modulation of the cavity field induced by the return from the target. According to the selected measurand, displacement or vibration, and to the analog of digital
Silvano Donati
wiley +1 more source
Strong gravitational lensing with Gauss-Bonnet correction [PDF]
Journal of Cosmology and Astroparticle Physics, 2014 In this paper we investigate the strong gravitational lensing with Gauss-Bonnet gravity. By considering the logarithmic term for deflection angle, we obtain the deflection angle $\hat $ and corresponding parameters $\bar{a}$ and $\bar{b}$. Finally, by using the relations between the observables and lensing parameters, we estimate the observables such ...
H. Vaez, Jafar Sadeghi
openaire +3 more sources