Results 91 to 100 of about 12,987 (191)
Dual-band topological Bott insulators in Ammann–Beenker-tiling square photonic quasicrystals
JPhys PhotonicsIn this work, we study topological states in Ammann–Beenker-tiling photonic quasicrystals made of magneto-optical materials. While conventional topological states in photonic systems with crystalline symmetry are characterized by topological invariants ...
Yingfang Zhang +3 more
doaj +1 more source
Limit-(quasi)periodic point sets as quasicrystals with p-adic internal spaces
, 1999 Model sets (or cut and project sets) provide a familiar and commonly used method of constructing and studying nonperiodic point sets. Here we extend this method to situations where the internal spaces are no longer Euclidean, but instead spaces with p ...
Baake M +22 more
core +1 more source
Reconstructing Focal Topological Curves through Vortex Spots from Multifocal Metasurfaces
Advanced Science, Volume 12, Issue 48, December 29, 2025.Multichannel multifocal silicon metasurfaces are built to reconstruct focal topological curves using an array of vortex spots, and upconverted fluorescence is used to directly visualize the morphology of the near‐infrared focal fields. Abstract Structured light plays an important role in modern photonics.
Hongguang Dong +4 more
wiley +1 more source
Topological Photonic Quasicrystals: Fractal Topological Spectrum and Protected Transport
, 2016 We show that it is possible to have a topological phase in two-dimensional quasicrystals without any magnetic field applied, but instead introducing an artificial gauge field via dynamic modulation.
Bandres, Miguel A. +2 more
core +2 more sources
Topological Quasiparticles of Light: From Spin‐Orbit Coupling to Photonic Skyrmions
Laser &Photonics Reviews, Volume 19, Issue 24, December 17, 2025.This review summarizes recent advances in photonic skyrmions, emphasizing the central role of spin–orbit coupling in their formation. The review discusses how spin–orbit interactions generate skyrmionic textures, examines modulation strategies for their dynamic control, and provides an overview of emerging directions and opportunities where these ...
Xinrui Lei, Qiwen Zhan
wiley +1 more source
Journal of Materials Research and Technology, 2019 The structural understanding of crystallization in bulk metallic glasses (BMGs) has attracted much attention while rapid crystallization occurring under controllable conditions is less involved.
Bingge Zhao +6 more
doaj +1 more source
On Elastic Stability and Positive Definiteness for One-Dimensional Quasicrystals
CrystalsIn this work, a proper formulation of the elastic stability and positive definiteness of the elastic energy density of one-dimensional quasicrystals is provided. Based on an appropriate Voigt notation, the Sylvester criterion is applied and the necessary
Eleni Agiasofitou, Markus Lazar
doaj +1 more source
Elastic theory of icosahedral quasicrystals - application to straight dislocations
, 2001 In quasicrystals, there are not only conventional, but also phason displacement fields and associated Burgers vectors. We have calculated approximate solutions for the elastic fields induced by two-, three- and fivefold straight screw- and edge ...
Bachteler, J. +2 more
core +1 more source
Crystals, 2017 This Special Issue aims at gaining a deeper understanding on the relationship between the underlying structural order and the resulting physical properties in aperiodic systems, including quasicrystalline and related complex metallic alloys, photonic ...
Enrique Maciá Barber
doaj +1 more source
Fermi surfaces and anomalous transport in quasicrystals
, 1998 Fermi surfaces of several quasicrystalline approximants are calculated by means of ab-initio methods which enable direct comparison with dHvA experiments.
Fujiwara, T., Roche, S.
core +1 more source