Spectrally resolved single-shot wavefront sensing of broadband high-harmonic sources
, 2017 Wavefront sensors are an important tool to characterize coherent beams of extreme ultraviolet radiation. However, conventional Hartmann-type sensors do not allow for independent wavefront characterization of different spectral components that may be ...
0000-0003-4753-3173 +5 more
core +2 more sources
Programmable Chiral Radiation via Spin‐Decoupled Metasurface with Integrated Compound Phases
Advanced Science, EarlyView.A programmable spin‐decoupled metasurface integrating propagation and geometric phases enables high‐purity chiral radiation with reconfigurable emission direction. Spin‐selective radiators combined with a compound phase decoupling strategy suppress undesired components, while embedded PIN diodes allow real‐time directional control.
Lu Song +8 more
wiley +1 more source
Spatio-temporal modelling of wave formation in an excitable chemical medium based on a revised FitzHugh-Nagumo model [PDF]
, 2010 The wavefront profile and the propagation velocity of waves in an experimentally observed Belousov-Zhabotinskii reaction are analyzed and a revised FitzHumgh-Nagumo(FHN) model of these systems is identified.
Billings, S.A. +5 more
core
Reconstructing Focal Topological Curves through Vortex Spots from Multifocal Metasurfaces
Advanced Science, EarlyView.Multichannel multifocal silicon metasurfaces are built to reconstruct focal topological curves using an array of vortex spots, and upconverted fluorescence is used to directly visualize the morphology of the near‐infrared focal fields. Abstract Structured light plays an important role in modern photonics.
Hongguang Dong +4 more
wiley +1 more source
On-sky multi-wavelength phasing of segmented telescopes with the Zernike phase contrast sensor
, 2011 Future Extremely Large Telescopes will adopt segmented primary mirrors with several hundreds of segments. Cophasing of the segments together is essential to reach high wavefront quality.
Cavarroc +20 more
core +3 more sources
On-sky reconstruction of Keck Primary Mirror Piston Offsets using a\n Zernike Wavefront Sensor [PDF]
, 2022 Maaike van Kooten +5 more
openalex +1 more source
Surface Adhesion Engineering for Armored Metasurfaces and Beyond
Advanced Science, EarlyView.Targeting primary causes of dysfunctionality in optical systems, an “armored” metasurface is developed based on Persson's model and Hertzian theory, enabling anti‐dust, anti‐scratch, anti‐impact, and anti‐water, heat resistance capabilities, alongside excellent optical antireflection performance.
Lianwei Chen +10 more
wiley +1 more source
Wavefront Reconstruction of Discontinuous Phase Objects Using Directional Derivatives
, 2023 Ricardo Legarda-Sáenz +2 more
openalex +1 more source
Varifocal Meta‐Lens for Multifunctional Focusing and Imaging
Advanced Science, EarlyView.A varifocal meta‐lens enables dynamic switching between conventional focusing and non‐diffracting autofocusing beams, relying on a phase design with dual interpretations in both real space and the spatial frequency domain. By integrating a Moiré‐based tuning mechanism, the system achieves continuous focal length control in both modes.
Rong Lin +6 more
wiley +1 more source
Physical Interpretation of Diffractive Optical Networks for High‐Dimensional Vortex Mode Sorting
Advanced Science, EarlyView.The first layer‐resolved physical interpretation of diffractive optical networks trained for high‐dimensional vortex mode sorting is presented, revealing transformation division phenomena linked to saturated performance as layer numbers increase. This analysis reconciles physical theorems with network operations, enabling physics‐driven design of ...
Ruitao Wu +7 more
wiley +1 more source