Results 101 to 110 of about 655,925 (308)
Nearly 180° Field‐of‐View Metalens for Miniaturized Imaging Systems
Laser &Photonics Reviews, EarlyView.A compact, single‐layer metalens is developed with an ultra‐wide field of view of ≈180 degrees. Utilizing a unique quadratic phase profile, this metalens overcomes traditional issues like axial and color dispersion. It operates across red, green, and blue wavelengths with non‐polarized light, promising enhanced imaging capabilities for integration into
Azhar Javed Satti +9 more
wiley +1 more source
, 2016 An azimuthally electric-polarized vector beam (APB), with a polarization vortex, has a salient feature that it contains a magnetic-dominant region within which electric field ideally has a null while longitudinal magnetic field is maximum.
Capolino, Filippo +2 more
core +2 more sources
Electrically Tunable Binary-Phase Fresnel Lens Based on Polymer Dispersed Liquid Crystal
Medžiagotyra, 2017 This is a proposal for a Fresnel lens with an electrically tunable binary-phase made of polymer dispersed liquid crystal (PDLC), which has relatively fast response time and low applied voltage.
Hui LI +4 more
doaj +1 more source
Laser &Photonics Reviews, EarlyView.A scattering‐robust 3D speckle customization method is proposed to enhance both resolution and imaging depth in scattering tissue. Applied to light‐field microscopy (LFM), it improves 3D resolution by over twofold under strong optical scattering. In wide‐field fluorescence imaging, it enables a substantial improvement in imaging depth, allowing imaging
Yue Xing +4 more
wiley +1 more source
Large-scale spectral bandwidth compression by complex electro-optic temporal phase modulation
, 2018 Spectral-temporal shaping of quantum light has important applications in quantum communications and photonic quantum information processing. Electro-optic temporal lenses have recently been recognized as a tool for noise-free, efficient spectral ...
Karpinski, Michal, Sosnicki, Filip
core +1 more source
MetalMat, EarlyView.This review explores current strategies for shaping two‐dimensional transition metal dichalcogenides (TMDs) beyond their planar form. It highlights how strain engineering, nanopatterning, and growth on complex substrates modulate their mechanical, optical, and electronic properties.
C. Grazianetti +6 more
wiley +1 more source
Real-time digital holographic microscopy observable in multi-view and multi-resolution
, 2010 We propose a real-time digital holographic microscopy, that enables simultaneous multiple reconstructed images with arbitrary resolution, depth and positions, using Shifted-Fresnel diffraction instead of Fresnel diffraction.
Ichihashi, Yasuyuki +3 more
core +1 more source
Design of Fresnel lens with spherical facets for concentrated solar power applications
International Journal of Energy Research, 2019 In this paper, a ray‐tracing model is developed using MATLAB based on mathematical formulations used in the design of Fresnel lens with spherical facets.
Kuldeep Awasthi +2 more
semanticscholar +1 more source
Correlated X‐Ray and Electron Microscopies of a Single Biphasic GaAs Nanowire
Small Methods, EarlyView.Nano‐focused scanning X‐ray diffraction microscopy at a synchrotron light source, combined with transmission electron microscopy, reveals a clear correlation between the nanoscale distribution of cubic and hexagonal segments in a GaAs nanowire with subtle variations in inter‐reticular spacing, bending, and twisting.
Thomas Dursap +14 more
wiley +1 more source
Spatial convolution and correlation of optical fields via degenerate four-wave mixing [PDF]
, 1978 A nonlinear optical technique is described that performs, essentially instantaneously, the functions of spatial correlation and convolution of spatially encoded waves.
AuYeung, John +3 more
core +1 more source