Results 191 to 200 of about 2,542,170 (251)

Near‐Infrared Polarimetric Imaging With Nonlinear Flat‐Optics

open access: yesLaser &Photonics Reviews, Volume 20, Issue 18, 18 September 2026.
ABSTRACT A compact and broadband polarimetric imaging platform is presented, based on second‐harmonic generation (SHG) in nonlinear flat‐optics. The system employs periodic all‐dielectric AlGaAs gratings to induce polarization‐dependent SH emission, enabling pixel by pixel direct retrieval of the full Stokes vector from an input intensity distribution ...
Evgenii Menshikov   +6 more
wiley   +1 more source

Multispectral Concentric Grafted Perfect Vector Vortex Beam

open access: yesLaser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
Multispectral structured light offers powerful opportunities for increasing information capacity. A multispectral concentric grafted perfect vector vortex beam is proposed to engineer topological charges and polarization. A metasurface can graft different perfect vector vortex beams across concentric spatial regions and extend this concept to ...
Guanchao Wang   +6 more
wiley   +1 more source

Wavelength and Full‐Polarization Encrypted Orbital Angular Momentum Meta‐Holography

open access: yesLaser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
By multiplexing three independent degrees of freedom of light, a single‐layer geometric‐phase metasurface encrypts 24 distinct holographic images across 3 wavelengths, 12 pairs of orthogonal polarizations, and 4 OAM channels, taking advantage of axial chromatic dispersion to reconstruct the color images at the same plane. ABSTRACT Multiplexing multiple
Yue Han   +5 more
wiley   +1 more source

Reconfigurable Giant Nonreciprocity at Near‐Normal Incidence via Phase‐Change Magneto‐Optical Metagratings

open access: yesLaser &Photonics Reviews, Volume 20, Issue 18, 18 September 2026.
A phase‐change magneto‐optical metagrating combines GST switching with InAs guided‐mode resonances to achieve strong nonreciprocal absorption contrast near normal incidence. A static magnetic bias creates direction‐dependent resonant splitting, while GST crystallization quenches and latches the response.
Ye Ming Qing   +5 more
wiley   +1 more source

Shining Light on Quantum Materials: Interplay of Symmetry, Quantum Geometry, and Nonlinear Photocurrents

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 9, September 2026.
Nonlinear photocurrents provide broadband spectroscopic access to quantum materials from terahertz to optical frequencies. Their sensitivity to spin, orbital, chiral, topological, and quantum‐geometric properties enables insights across ferroelectrics, magnetic and two‐dimensional materials, moiré heterostructures, topological flat bands, and light ...
Kurosch Mehrgan   +2 more
wiley   +1 more source

Broadband and Enhanced Second‐Harmonic Generation in Metallic 3R‐TaS2

open access: yesSmall, Volume 22, Issue 53, 21 September 2026.
A pronounced and robust SHG response has been observed in metallic 3R‐TaS2. It shows broadband SH conversion from 1020 nm to 1410 nm. Moreover, compared to the sapphire substrate, 3R‐TaS2 flakes with various thicknesses on the gold substrate showed different SHG enhancement; the enhancement factors range from 2.7 to 45.5.
Ruo‐Si Chen   +9 more
wiley   +1 more source

Bionic Tactile Skins for Robotics: Fundamentals, Advances, and Future Prospects

open access: yesSmartSys, Volume 2, Issue 3, September 2026.
ABSTRACT Robotic bionic tactile skins (RBTSs), as crucial components of next‐generation robotic systems, have attracted significant attention in recent years. By enabling robots to achieve human‐like tactile perception and interact effectively with their surroundings, RBTSs play an essential role in enhancing robotic intelligence.
Jiajun Wu   +8 more
wiley   +1 more source

Quantum Plasmonic Dynamics Modeled via a Modified Langevin Noise Formalism: Numerical Studies of Single‐Photon Emission and Two‐Photon Interference

open access: yesNanophotonics, Volume 15, Issue 16, 26 August 2026.
Based on the modified Langevin noise formalism and BA‐MA theory, optimized computational formulations are demonstrated for quantum plasmonic simulations without explicit BA–MA mode construction. Plasmonic Hong‐Ou‐Mandel interference, g2, atomic population, and single‐photon probability amplitudes are efficiently analyzed, revealing directional single ...
Jisang Seo   +5 more
wiley   +1 more source

Relative Effects of Fabry‐Perot, Mie, and Guided‐Mode Resonance in Periodic Photonic Lattice Physics

open access: yesNanophotonics, Volume 15, Issue 16, 26 August 2026.
The physical origins of resonance effects in one‐dimensional periodic photonic lattices are studied to assess the relative roles of Fabry–Perot, Mie, and guided‐mode resonance mechanisms. It is shown that lattice resonance is fundamentally governed by lateral leaky Bloch modes and their coupling to external radiation via guided‐mode resonance.
Yu Sung Choi   +6 more
wiley   +1 more source

Planar Super‐Oscillation Diffractive Lenses: Practical Developments and Applications

open access: yesNanophotonics, Volume 15, Issue 16, 26 August 2026.
This review examines planar super‐oscillation diffractive lenses as a unified framework for super‐oscillatory lenses and supercritical lenses. It focuses on applications in super‐resolution imaging, micro/nanofabrication, and precision measurement and relates their application‐specific requirements to focal‐field control, multiobjective design ...
Yutian Cheng   +6 more
wiley   +1 more source

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