Results 241 to 250 of about 5,691 (305)

The Generation and Control of Irregularly Shaped Perfect Vector Vortex Beams on Hybrid Poincaré Spheres Using All‐Dielectric Metasurfaces

open access: yesNanophotonics, Volume 15, Issue 3, 12 February 2026.
Based on an all‐dielectric metasurface with cross‐phase modulation, we achieve the generation and polarization control of integers and fractional order irregular perfect vector vortex beams on the hybrid Poincaré sphere, opening a new avenue for optical field manipulation.
Xiaojie Sun   +7 more
wiley   +1 more source

Solid‐State Vortex Laser at Eye‐Safe Band: A Perspective

open access: yesNanophotonics, Volume 15, Issue 2, 27 January 2026.
As one of the ideal vortex sources, solid‐state vortex laser at eye‐safe band has attracted considerable attention because of its potentials in multifunctional lidar. In this perspective, we summarize the schemes of eye‐safe vortex laser and discuss prospects for future development.
Haojun Zhang   +4 more
wiley   +1 more source

Phase Modulation for Quadruplex Channels of Arbitrary Orthogonal Polarization States via Bilayer Metasurfaces

open access: yesNanophotonics, Volume 15, Issue 2, 27 January 2026.
This work demonstrates a strategy for four‐channel phase modulation and flexible energy distribution of arbitrary orthogonal states of polarization under incomplete polarization conversion conditions. Such a strategy can be implemented through an all‐dielectric free‐standing bilayer metasurface configuration and can be used for multichannel optical ...
Wei Wang   +7 more
wiley   +1 more source

Speckle-driven single-shot orbital angular momentum recognition with ultra-low sampling density. [PDF]

open access: yesNat Commun
Wang Z   +10 more
europepmc   +1 more source

An Epsilon‐Near‐Zero‐Based Nonlinear Platform for Ultrafast Re‐Writable Holography

open access: yesNanophotonics, Volume 15, Issue 2, 27 January 2026.
We show that an unstructured, sub‐wavelength thick epsilon‐near‐zero material, such as ITO, can be efficiently used for ultrafast re‐writable holography over a broad bandwidth range. We showcase two powerful applications of our scheme, that is, spatial structuring of light and optical computation.
M. Zahirul Alam   +5 more
wiley   +1 more source

Magnetic‐Field Tuning of the Spin Dynamics in the Quasi‐2D Van der Waals Antiferromagnet CuCrP2S6

open access: yesAdvanced Functional Materials, Volume 36, Issue 5, 15 January 2026.
This study reveals 2D character of the spin dynamics in CuCrP2S6, as well as complex field dependence of collective excitations in the antiferromagnetically ordered state. Their remarkable tuning from the antiferromagnetic to the ferromagnetic type with magnetic field, together with the non‐degeneracy of the magnon gaps favorable for the induction of ...
Joyal John Abraham   +16 more
wiley   +1 more source

Floquet-Bloch valleytronics. [PDF]

open access: yesNat Commun
Fragkos S   +8 more
europepmc   +1 more source

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