Results 151 to 160 of about 4,729 (265)

Advancing Machine Learning Optimization of Chiral Photonic Metasurface: Comparative Study of Neural Network and Genetic Algorithm Approaches

Advanced Physics Research, Volume 5, Issue 6, June 2026.
Two methods for the optimization of chiral reflection by a metamaterial made of either GaP/Air or PMMA/Air interfaces are compared, showing approaches towards fast design exploration and high‐performance results: a neural‐network pipeline and a genetic algorithm. The structures considered are characterized by a periodic, chiral texturation with a shape
Davide Filippozzi, Alexandre Mayer, Nicolas Roy, Wei Fang, Arash Rahimi‐Iman   +4 more
wiley   +1 more source

Holographic lasing with dielectric metasurfaces. [PDF]

Sci Adv
Bashiri A, Vaskin A, Yang M, Tanaka K, Rikers M, Pertsch T, Staude I.   +6 more
europepmc   +1 more source

Holographic cylindrical lenses for the infra-red

, 1990
peer reviewedDesign of Holographic Optical Element for optpelectonics ...
Defosse, Yves, Lion, Yves, Renotte, Yvon
core  

Background Instability of Quintessence Model in Light of Entropy and Distance Conjecture

Fortschritte der Physik, Volume 74, Issue 6, June 2026.
ABSTRACT We apply the covariant entropy bound argument supporting the de Sitter swampland conjecture to the quintessence model, to find out the condition for the background to be unstable. More concretely, the background is unstable when the matter entropy given by the species number of the effective field theory increases more rapidly than the ...
Min‐Seok Seo
wiley   +1 more source

All-in-one optically interactive soft robots with embedded liquid crystal holography. [PDF]

Light Sci Appl
Zhang ZC, Wei Y, Wang ZY, Fu YH, Zheng R, Wang N, Wang Y, Ma LL, Lu YQ.   +8 more
europepmc   +1 more source

Millimetre wave imaging for concealed target detection

, 2011
PhDConcealed weapon detection (CWD) has been a hot topic as the concern about pub- lic safety increases. A variety of approaches for the detection of concealed objects on the human body based on earth magnetic ¯eld distortion, inductive magnetic ¯eld,
Zhang, Lianhong
core  

Computational methods for automated center determination in electron diffraction patterns

Journal of Applied Crystallography, Volume 59, Issue 3, Page 845-857, June 2026.
This study evaluates and compares automated methods for center detection in 2D diffractograms. The methods have been implemented in EDIFF, an open‐source user‐friendly Python package for the processing of electron diffraction patterns.Accurate center detection in electron diffraction patterns is critical for all subsequent processing of experimental ...
Pavlina Sikorova, Miroslav Slouf, Tomas Molnar, Vladislav Krzyzanek   +3 more
wiley   +1 more source

Finite-Capacity Thermodynamics of Causal Horizons. [PDF]

Entropy (Basel)
Antiba CA.
europepmc   +1 more source

Investigation into the delivery and evaluation of a unique Avena sativa (Oat) Lipid Extract on skin barrier using LC‒MS/MS, Raman spectroscopy, immunostaining analysis and skin efficacy

International Journal of Cosmetic Science, Volume 48, Issue 3, Page 500-517, June 2026.
Abstract Objectives Oat lipids are rich in ceramides. In this investigation, we analysed the delivery of a specific Oat Lipid Extract derived from Avena sativa, comprising ‘skin identical’ ratios of fatty acids, ceramides and cholesterol/sterol. This investigation is the first reported investigation of oat lipids utilizing Raman spectroscopy for the ...
E. Gombert, C. Dewis
wiley   +1 more source

Holographic diffusers for endoluminal-scale optical ultrasound imaging. [PDF]

J Biomed Opt
Watt FT, Maneas E, Chan D, Zhang EZ, Beard PC, Alles EJ.   +5 more
europepmc   +1 more source