Results 71 to 80 of about 637,479 (268)
Advanced Materials Technologies, EarlyView.A dyed nylon fiber is implemented inside the scattering phantom and skin tissue. The deep‐tissue light generation via whispering gallery mode lasing is demonstrated, achieving a depth of >50 times transport mean free path in scattering phantom and 3 mm beneath skin.
Dongqin Ni +4 more
wiley +1 more source
Fourier Multiplier Extension Using Quaternionic Windowed Transform [PDF]
, 2008 We begin with an introduction of the quaternionic windowed Fourier transform(QWFT) and define Fourier multiplier for the QWFT to investigate some of its important ...
core
Advanced Materials Technologies, EarlyView.Vertically oriented van der Waals MoS2 thin films enable a mechanically programmable crack network for strain sensing. The initial mechanical programming protocol establishes a programmed crack configuration along weak interlayer and interdomain interfaces.
Yinli Wang, Hiroyuki Hirakata
wiley +1 more source
Two‐Dimensional Isotropic Spatial Differentiation Through Complete Polarization Control
Advanced Optical Materials, EarlyView.This work enables two‐dimensional isotropic spatial differentiation at planar interfaces over a wide range of incident angles by extending the output polarization from linear to elliptical. The choice of incident angle can be used to balance broader spectral response at low angles and higher edge‐detection efficiency at larger angles.
Doyoon Lee, Minkyung Kim
wiley +1 more source
The Role of Multipliers in Seismic Signal Processing and Structural Response [PDF]
Mathematics Interdisciplinary ResearchWe present a simplified formulation of multipliers in commutative Banach algebras by relaxing the classical faithfulness condition in [1, Theorem 3.2]. A concise and transparent proof is provided.
Marjan Adib, Mohsen Jaddi
doaj +1 more source
Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes
Advanced Optical Materials, EarlyView.We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco +7 more
wiley +1 more source
Mikhlin-Type Hp Multiplier Theorem on the Heisenberg Group
AxiomsThe classical Fourier multiplier theorem by Mikhlin in Hardy spaces is extended to the Heisenberg group. The proof relies on the theories of atom and molecule functions and the property of special Hermite functions.
Jinsen Xiao, Jianxun He, Yingzhu Wu
doaj +1 more source
Fourier multipliers on the Heisenberg group revisited
Studia Mathematica, 2021 To be appear in Studia ...
openaire +3 more sources
Extrinsic Limitations of Stealthy Hyperuniform Devices
Advanced Optical Materials, EarlyView.Stealthy hyperuniform devices exhibit a scattering‐free angular region whose extent follows a simple quenching equation. Experimental measurements confirm this prediction but reveal quenching efficiencies far below theoretical expectations. Multiple scattering and finite‐size effects are quantified, establishing realistic performance limits for ...
Yuhao Xu +5 more
wiley +1 more source
Restriction and decay for flat hypersurfaces [PDF]
, 2002 In the first part we consider restriction theorems for hypersurfaces [Gamma] in Rn, with the affine curvature [fòrmula] introduced as a mitigating factor. Sjolin, [19], showed that there is a universal restriction theorem for all convex curves in R2.
Carbery, Anthony +3 more
core +1 more source