Results 31 to 40 of about 49,255 (246)

Thermal Emission Control via Bandgap Engineering in Aperiodically Designed Nanophotonic Devices

open access: yesNanomaterials, 2015
Aperiodic photonic crystals can open up novel routes for more efficient photon management due to increased degrees of freedom in their design along with the unique properties brought about by the long-range aperiodic order as compared to their periodic ...
Enrique Maciá
doaj   +1 more source

Schrödinger’s What is Life?—Complexity, Cognition and the City

open access: yesEntropy, 2023
This paper draws attention to four central concepts in Schrödinger’s ‘What is Life?’ that have not, as yet, received sufficient attention in the domain of complexity: delayed entropy, free energy, order out of order and aperiodic crystal.
Juval Portugali
doaj   +1 more source

Local symmetry dynamics in one-dimensional aperiodic lattices [PDF]

open access: yes, 2013
A unifying description of lattice potentials generated by aperiodic one-dimensional sequences is proposed in terms of their local reflection or parity symmetry properties.
Diakonos, F. K.   +3 more
core   +2 more sources

Aperiodic Photonics of Elliptic Curves

open access: yesCrystals, 2019
In this paper we propose a novel approach to aperiodic order in optical science and technology that leverages the intrinsic structural complexity of certain non-polynomial (hard) problems in number theory and cryptography for the engineering of optical ...
Luca Dal Negro   +2 more
doaj   +1 more source

Magneto-Optical Faraday Effect in Quasicrystalline and Aperiodic Microresonator Structures

open access: yesMagnetochemistry, 2023
We theoretically and numerically investigate magnetophotonic microresonators formed by a magnetic layer sandwiched between two reflective multilayers with different layer arrangements.
Daria O. Ignatyeva   +2 more
doaj   +1 more source

Aperiodically ordered nano-graphene on the quasicrystalline substrate

open access: yesNew Journal of Physics, 2020
Abstract Designing exotic structures in low dimensions is key in today’s quest to tailor novel quantum states in materials with unique symmetries. Particularly intriguing materials in this regard are low dimensional aperiodic structures with non-conventional symmetries that are otherwise forbidden in translation symmetric crystals.
Maniraj, Mahalingam   +11 more
openaire   +8 more sources

Anti-Powers in Infinite Words [PDF]

open access: yes, 2018
In combinatorics of words, a concatenation of $k$ consecutive equal blocks is called a power of order $k$. In this paper we take a different point of view and define an anti-power of order $k$ as a concatenation of $k$ consecutive pairwise distinct ...
Fici, Gabriele   +3 more
core   +3 more sources

Projected topological branes

open access: yesCommunications Physics, 2022
Authors introduce a new class of topological materials, namely projected topological branes that are holographic images of higher-dimensional topological crystals, and feature either emergent crystalline or aperiodic quasicrystalline order. They manifest
Archisman Panigrahi   +2 more
doaj   +1 more source

Anti-Powers in Infinite Words [PDF]

open access: yes, 2016
In combinatorics of words, a concatenation of k consecutive equal blocks is called a power of order k. In this paper we take a different point of view and define an anti-power of order k as a concatenation of k consecutive pairwise distinct blocks of the
Fici, Gabriele   +3 more
core   +1 more source

High-Impedance Surfaces with Aperiodically-Ordered Textures [PDF]

open access: yes2007 International Conference on Electromagnetics in Advanced Applications, 2007
This paper deals with a study of textured (mushroom-type) high-impedance substrates based on aperiodic-tiling geometries. In this connection, preliminary results from full-wave simulations are presented in order to explore possible applications as artificial-magnetic-conductor ground-planes for low-profile directive antennas.
Gallina, Ilaria   +6 more
openaire   +3 more sources

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