Results 11 to 20 of about 7,840 (209)

Dirac bound states in the continuum in honeycomb photonic crystal slabs. [PDF]

open access: yesSci Rep
We investigate bound states in the continuum (BICs) in dielectric photonic crystal slabs, which occur at the double Dirac point with four-fold degeneracy.
Chern RL, Kao YC, Hwang RR.
europepmc   +2 more sources

Silicon nanocrystal-based photonic crystal slabs with broadband and efficient directional light emission. [PDF]

open access: yesSci Rep, 2017
Light extraction from a thin planar layer can be increased by introducing a two-dimensional periodic pattern on its surface. This structure, the so-called photonic crystal (PhC) slab, then not only enhances the extraction efficiency of light but can ...
Ondič L   +5 more
europepmc   +2 more sources

Bound states in the continuum: From fundamental physics to emerging photonic paradigms. [PDF]

open access: yesiScience
Summary: Bound states in the continuum (BICs) defy the conventional intuition of open photonic systems by supporting perfectly localized eigenmodes within the radiative spectrum.
Zhang S   +6 more
europepmc   +2 more sources

Defect-evolved quadrupole higher-order topological nanolasers. [PDF]

open access: yesNat Commun
Topological photonics have been garnering widespread interest in engineering the flow of light with topological ideas. Strikingly, the recent introduction of higher-order topological insulators has generalized the fundamental framework of topological ...
Guo S   +5 more
europepmc   +2 more sources

Electrically Tunable Momentum Space Polarization Singularities in Liquid Crystal Microcavities. [PDF]

open access: yesAdv Sci (Weinh)
Momentum space polarization singularities of light appear as vectorial twists in the scattered and radiated far field patterns of exotic photonic structures.
Oliwa P   +12 more
europepmc   +2 more sources

Photon-Mediated Interactions near a Dirac Photonic Crystal Slab [PDF]

open access: yesACS Photonics, 2021
Las dispersiones de energía de Dirac son responsables de las extraordinarias propiedades de transporte del grafeno. Esto motivó la búsqueda de la ingeniería de tales dispersiones de energía también en la fotónica, donde se ha predicho que conducirán a muchos fenómenos emocionantes.
Erik Navarro-Barón   +2 more
openaire   +3 more sources

Optical moiré bound states in the continuum. [PDF]

open access: yesNat Commun
Trapping electromagnetic waves within the radiation continuum holds significant implications in the field of optical science and technology. Photonic bound states in the continuum (BICs) present a distinctive approach for achieving this functionality ...
Qin H   +8 more
europepmc   +2 more sources

Polarization singularities and optical chirality in dielectric metasurfaces [PDF]

open access: yesEPJ Web of Conferences, 2022
We theoretically study the relation between polarization singularities and optical properties in dielectric metasurfaces, or photonic crystal slabs. We focus on nondegenerate photonic bands leading to symmetry-protected Bound States in a Continuum (BICs).
Andreani Lucio Claudio   +4 more
doaj   +1 more source

Surface Plasmon Resonance sensor based on a D-shaped photonic crystal fiber with a bimetallic layer [PDF]

open access: yesEPJ Web of Conferences, 2020
The investigation of a D-shaped photonic crystal fiber sensor with a bimetallic layer for operation at the visible and infrared spectra is presented. The bimetallic layer is composed by silver and gold slabs deposited adjacently on the flat face of the ...
Cardoso Markos P.   +7 more
doaj   +1 more source

Giant Photonic Spin Hall Effect by Anisotropic Band in Photonic Crystal Slabs

open access: yesIEEE Photonics Journal, 2022
When a paraxial light beam is reflected from/ transmitted through an optical element with rotation symmetry, a tiny small incident angle can arise wave-vector-varying Pancharatnam-Berry (PB) phases, resulting in high-performance photonic spin Hall
Rongfeng Zhang   +7 more
doaj   +1 more source

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