Results 21 to 30 of about 19,046 (299)

Light wave propagation and diffraction inhibition in three-dimensional photonic quasicrystal lattices

open access: yesResults in Physics, 2023
We have investigated the linear propagation of light wave in three-dimensional photonic quasicrystal lattices by numerical simulation. The diffraction characteristics of the light waves in the longitudinal non-modulated, in-phase modulated and out-of ...
Meng Song   +3 more
doaj   +1 more source

Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases

open access: yesNature Communications, 2020
To simulate band structures of solid state materials synthetic lattices are usually generated by optical lattices or by irreversible patterning the system.
L. Pickup   +3 more
doaj   +1 more source

Bound states in the continuum in subwavelength emitter arrays

open access: yesPhysical Review Research, 2023
Ordered lattices of emitters with subwavelength periodicities support unconventional forms of light-matter interactions arising from collective effects.
María Blanco de Paz, Paloma A. Huidobro
doaj   +1 more source

Localization of Light in Photonics Lattices for All-Optical Representation of Binaries

open access: yesFrontiers in Physics, 2021
In this paper we present a novel conceptual method for all optical representation of binary numbers that could be used for all-optical binary logic components in optical digital computing, as well as for other applications.
Dan T. Nguyen   +2 more
doaj   +1 more source

Anderson lattice description of photoassociation in an optical lattice [PDF]

open access: yesPhysical Review A, 2006
We consider atomic mixtures of bosons and two-component fermions in an optical lattice potential. We show that if the bosons are in a Mott-insulator state with precisely one atom per lattice, the photoassociation of bosonic and fermionic atoms into heteronuclear fermionic molecules is described by the Anderson Lattice Model.
Miyakawa, Takahiko, Meystre, Pierre
openaire   +2 more sources

Harnessing Laguerre-Gaussian Beams to Construct Quasi-Nondiffracting Optical Ring Lattices

open access: yesIEEE Photonics Journal, 2018
We construct a family of optical ring lattices that manifest the quasi-nondiffracting property via superposition of high-radial-order Laguerre-Gaussian beams.
Qian Zhao   +5 more
doaj   +1 more source

Structural Tolerances of Optical Characteristics in Various types of Photonic Lattices

open access: yesAdvances in Electrical and Electronic Engineering, 2014
A systematic study of various photonic crystal lattices and their optical characteristics is carried out in this paper. Sensitivity of both dispersion and effective mode area characteristics to deviations of particular structural parameters of the ...
Stanislav Kraus, Michal Lucki
doaj   +1 more source

Travelling solitary waves in the discrete nonlinear Schrodinger equation with saturable nonlinearity: existence, stability and dynamics [PDF]

open access: yes, 2007
The present work examines in detail the existence, stability and dynamics of travelling solitary waves in dynamical lattices with saturable nonlinearity.
Melvin, TRO.   +14 more
core   +1 more source

A disordered insulator in an optical lattice [PDF]

open access: yesNature Physics, 2010
Disorder can profoundly affect the transport properties of a wide range of quantum materials. Presently, there is significant disagreement regarding the effect of disorder on transport in the disordered Bose-Hubbard (DBH) model, which is the paradigm used to theoretically study disorder in strongly correlated bosonic systems.
Pasienski, M.   +3 more
openaire   +2 more sources

Nonlinear Excitations in Ultracold Atoms Trapped in Triple Optical Lattices

open access: yesCondensed Matter, 2022
Various solitary wave excitations are found for a Bose-Einstein condensate in presence of two hybrid potentials in the form of triple mixtures of optical lattices. One of these potentials comprises of a combination of two important lattice profiles, such
Pradosh Basu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy