Generating Helical Polymorphic Beams Using Dielectric Metasurfaces
Laser &Photonics Reviews, EarlyView.Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh +3 more
wiley +1 more source
Second-order asymptotics of fractional Gagliardo seminorms as s → 1 - and convergence of the associated gradient flows. [PDF]
Fract Calc Appl AnalKubin A, Pagliari V, Tribuzio A.
europepmc +1 more source
Laser &Photonics Reviews, EarlyView.A zero‐dimensional perovskite‐inspired scintillator (Cs3Cu2I5) is developed as a high‐radiation‐resilient radionuclide analyzer capable of operating under extreme γ‐ray environments. Even after 200 kGy irradiation, the device fully restores its original spectroscopic performance through simple thermal annealing, demonstrating intrinsic defect ...
Jiwon Seo +9 more
wiley +1 more source
Rolling Bearing Fault Diagnosis via Meta-BOHB Optimized CNN-Transformer Model and Time-Frequency Domain Analysis. [PDF]
Sensors (Basel)Wang Y, Jiang H, Tong B, Song S.
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Compact Single‐Shot Incoherent Edge Detection With a Polarization‐Multiplexed Metalens
Laser &Photonics Reviews, EarlyView.A polarization‐sensitive metalens enables single‐shot incoherent edge detection by generating two polarization‐dependent images and digitally subtracting them to realize a high‐pass optical transfer function. ABSTRACT Edge detection under incoherent illumination is highly desirable for compact vision systems but remains challenging due to the lack of ...
Weiyan Li +17 more
wiley +1 more source
Electromechanical Characteristics Analysis of Magnetic Shield on Superconducting Magnetic Levitation Train. [PDF]
Micromachines (Basel)Hu M, Zhang L, Tao R, Wang P.
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A Test Function Method for Weakly Coupled Systems With Derivative‐Type Nonlinearity
Mathematische Nachrichten, EarlyView.ABSTRACT We consider a two by two system of inequalities which include fractional powers of the Laplace operator, coupled through a semilinear term of derivative type. We prove the nonexistence of global‐in‐time weak solutions for powers below the critical curve and possibly on the critical curve.
Marcello D'Abbicco, Antonio Lagioia
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Time series image coding classification theory based on Lagrange multiplier method. [PDF]
Sci RepJiang W, Zhao M, Li H.
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Macromolecular Rapid Communications, EarlyView.We establish a correlation between the mid‐IR photonic response of Passive Daytime Radiative Cooling systems and their thermal radiation performances, characterized within a dedicated setup that simulates the irradiance toward outer space under controlled and reproducible conditions.
Emma Spotorno +5 more
wiley +1 more source
Multi-chaotic signal identification employing a causal cross-correlation neural network. [PDF]
iScienceWang B, Piao X, Chen C, Guo E, Zhang X.
europepmc +1 more source