Results 111 to 120 of about 1,878 (250)
Fresnel integration \& diffraction amplitude
, 2020 The Fresnel integral is used in diffraction of wave phenomena. It is demonstrated that the ordinary Fresnel integral has additional yet unkown $\pm 1$ multivaluedness.
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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
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Corrigenda: “Rational approximations for the Fresnel integrals” [Math. Comp. 44 (1985), no. 170, 459–461; MR0777277 (86b:65017)] [PDF]
, 1986 Mark A. Heald
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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
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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
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Some Fundamental Solutions Which Generalize Fresnel Integrals
Journal of Mathematical Analysis and Applications, 1996 The goal of the present paper is to find a fundamental solution for the family of operators \(P= \partial/\partial t+\alpha\partial^m/\partial z^m\), \(m\geq 2\), where \(\partial/\partial z\) is the operator of complex differentiation, \(\partial/\partial z= 1/2(\partial_x-i\partial_y)\).
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Advanced Science, Volume 13, Issue 7, 3 February 2026.This study presents an optically coupled X‐ray computed laminography system for high‐speed inspection of lithium‐ion batteries. A scintillator serving as a virtual detector decouples spatial resolution from the X‐ray focal spot size, enabling defect detection even with large‐spot, high‐power X‐ray tubes.
Jaeyoung Im +4 more
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Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 1189-1204, February 2026.Abstract Purpose Fat fraction (FF) quantification in individual muscles using quantitative MRI is of major importance for monitoring disease progression and assessing disease severity in neuromuscular diseases. Undersampling of MRI acquisitions is commonly used to reduce scanning time. The present paper introduces novel unrolled neural networks for the
Sandra Martin +6 more
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Earth and Space Science, Volume 13, Issue 2, February 2026.Abstract The Surface Water and Ocean Topography (SWOT) mission provides unprecedented high‐resolution simultaneous observations of both sea surface height anomalies and sea surface roughness. Specifically, it enables more precise analysis of strong internal waves. Off the Amazon Shelf, in the Indonesian Seas, and near the Mascarene Ridge, internal wave
V. Cheshm Siyahi +3 more
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