Results 181 to 190 of about 446,471 (361)

Varifocal Meta‐Lens for Multifunctional Focusing and Imaging

open access: yesAdvanced 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

Stability of a Generalized Trigonometric-Quadratic Functional Equation

open access: yesJournal of Function Spaces and Applications, 2013
Janyarak Tongsomporn, Vichian Laohakosol
doaj   +1 more source

Physical Interpretation of Diffractive Optical Networks for High‐Dimensional Vortex Mode Sorting

open access: yesAdvanced 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

Green's Function Perspective on the Nonlinear Density Response of Quantum Many-Body Systems. [PDF]

open access: yesJ Stat Phys
Vorberger J   +4 more
europepmc   +1 more source

Tunable Photoluminescent and Photothermal Properties of Organic Cocrystals Containing Hydrogen‐Bonded Interlocked Planar Molecules

open access: yesAdvanced Science, EarlyView.
Engineering intramolecular hydrogen‐bonded planar architectures provides a versatile strategy for modulating the photoluminescent and photothermal behaviors of organic cocrystals. This work not only overcomes the limitations of selecting conjugated (hetero)aromatic compounds to meet the requirements of planarity and rigidity for cocrystal precursors ...
Xinmeng Chen   +12 more
wiley   +1 more source

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