Results 101 to 110 of about 6,788 (257)
Pattern Formation in the Transverse Section of a Laser with a Large Fresnel Number
, 1999 Stephen P. Hegarty +3 more
openalex +2 more sources
Revisiting PSF models: Unifying framework and high‐performance implementation
Journal of Microscopy, EarlyView.Abstract Localisation microscopy often relies on detailed models of point‐spread functions. For applications such as deconvolution or PSF engineering, accurate models for light propagation in imaging systems with a high numerical aperture are required. Different models have been proposed based on 2D Fourier transforms or 1D Bessel integrals.
Yan Liu +7 more
wiley +1 more source
Highly Selective Toward HER or CO2RR by Regulating Cu Single and Dual Atoms on g‐C3N4
Advanced Functional Materials, Volume 36, Issue 10, 2 February 2026.This systematic study provides insights into the design of electrocatalysts for hydrogen evolution reaction (HER) and carbon dioxide reduction (CO2RR). It serves as a useful guide for tuning catalyst architecture toward efficient multifunctional performance by varying synthetic parameters, demonstrating the impact of copper (Cu) species ranging from ...
Wan‐Ting Chen +9 more
wiley +1 more source
Analysis and research on propagation field strength characteristics of non-line-of-sight signal
Dianxin kexueIn order to explore the diffraction loss caused by non-line-of-sight (NLOS ) propagation caused by obstacles in the airport communication path, the attenuation characteristics of signal field were studied.Firstly, based on the influence of different ...
Fengxun GONG, Ying ZHANG
doaj +2 more sources
Freeform Fresnel lenses with a low number of discontinuities for tailored illumination applications
, 2020 Karel Desnijder +2 more
openalex +1 more source
Advanced Optical Materials, Volume 14, Issue 5, 2 February 2026.A simple and efficient method for determining the stability of optical vortices via Fourier transform using a conventional spherical lens is presented. The theoretical and experimental results demonstrate a practical approach to directly and unambiguously measure the magnitude and sign of the topological charge of a beam without altering an ...
Elena Melnikova +5 more
wiley +1 more source
Advanced Optical Materials, Volume 14, Issue 5, 2 February 2026.Nonlinear optical susceptibilities of five different materials that exhibit the ferroelectric nematic phase, as well as smectic A ferroelectric phase, are determined. The materials investigated include archetypal molecular architectures as well as mixtures showing room‐temperature ferroelectric phases.
Matija Lovšin +7 more
wiley +1 more source
Advanced Optical Materials, Volume 14, Issue 5, 2 February 2026.This study determines the optical constants of two lead‐free perovskite‐inspired materials (PIMs), Cu2AgBiI6 and Cs3Bi2I6Br3, promising for indoor light conversion. The optical constants are applied to simulate photovoltaic device optics, and thereupon, revise the theoretical limits for photocurrent generation and power conversion efficiency, providing
Aleksi Kamppinen +6 more
wiley +1 more source