Results 1 to 10 of about 161 (73)

Metallic-mean quasicrystals as aperiodic approximants of periodic crystals [PDF]

open access: yesNature Communications, 2019
AbstractEver since the discovery of quasicrystals, periodic approximants of these aperiodic structures constitute a very useful experimental and theoretical device. Characterized by packing motifs typical for quasicrystals arranged in large unit cells, these approximants bridge the gap between periodic and aperiodic positional order.
P Ziherl, Tomonari Dotera
exaly   +6 more sources

Aperiodic approximants bridging quasicrystals and modulated structures [PDF]

open access: yesNature Communications
Toranosuke Matsubara   +2 more
exaly   +2 more sources

Bandgap properties of low‐index contrast aperiodically ordered photonic quasicrystals [PDF]

open access: yesMicrowave and Optical Technology Letters, 2009
AbstractWe numerically analyze, using Finite Difference Time Domain simulations, the bandgap properties of photonic quasicrystals with a low‐index contrast. We compared 8‐, 10‐, and 12‐fold symmetry aperiodically ordered lattices with different spatial tiling.
G. Zito   +5 more
openaire   +3 more sources

Area scalable and period manipulable three-dimensional optically induced photorefractive photonic periodic crystal or aperiodic quasicrystal

open access: yesSuperlattices and Microstructures, 2020
Abstract We experimentally investigate the formation of area-scalable three-dimensional (3D) photonic periodic crystal and aperiodic quasicrystal in an iron doped lithium niobate photorefractive material by multi-wedge prisms assisted compact and versatile single step optical induction approach.
Cheng Jiang   +3 more
openaire   +1 more source

Ted Janssen and aperiodic crystals [PDF]

open access: yesActa Crystallographica Section A: Foundations and Advances, 2019
De Boissieu M
exaly   +2 more sources

Optical properties of aperiodic metallic photonic crystal structures: quasicrystals and disorder

open access: yesJournal of Optics, 2014
In this PhD tutorial the linear optical properties of aperiodic metallic photonic crystals are studied. All structures consist of metal nanostructures on top of a waveguide material. The incident light can excite plasmonic modes in the metal as well as photonic modes in the waveguide. These resonant systems are coupled to each other. In the first part,
Bauer, C, Giessen, H
openaire   +1 more source

Structural studies of local environments in high-symmetry quasicrystals. [PDF]

open access: yesSci Rep, 2023
Sosa ARM   +3 more
europepmc   +1 more source

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