Silicon nanocrystal-based photonic crystal slabs with broadband and efficient directional light emission [PDF]
Scientific Reports, 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 ...
L. Ondič +5 more
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Realization of dual-band topological states in Su–Schrieffer–Heeger-like photonic crystal slabs
Results in Physics, 2023 We design the bilayer mirror-symmetric (I-shaped) photonic crystal slabs supporting dual-band topological edge states simultaneously, which is confirmed by the topological phases and localized field distributions.
Ying Chen +4 more
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Optical Refractive Index Sensing Based on High-Q Bound States in the Continuum in Free-Space Coupled Photonic Crystal Slabs [PDF]
Sensors, 2017 High sensitivity (S) and high quality factor (Q) are desirable to achieve low detection limit in label-free optical sensors. In this paper, we theoretically demonstrate that single-layer and coupled bi-layer photonic crystal slabs (PCS) possess ...
Yonghao Liu, Weidong Zhou, Yuze Sun
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Bound states in the continuum: From fundamental physics to emerging photonic paradigms [PDF]
iScienceSummary: Bound states in the continuum (BICs) defy the conventional intuition of open photonic systems by supporting perfectly localized eigenmodes within the radiative spectrum.
Shubin Zhang +6 more
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Defect-evolved quadrupole higher-order topological nanolasers [PDF]
Nature CommunicationsTopological 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 ...
Shengqun Guo +5 more
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Electrically Tunable Momentum Space Polarization Singularities in Liquid Crystal Microcavities [PDF]
Advanced ScienceMomentum space polarization singularities of light appear as vectorial twists in the scattered and radiated far field patterns of exotic photonic structures.
Przemysław Oliwa +12 more
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Freestanding Polymer Metasurface Supporting Higher-Order Optical Resonances for Strong Field Enhancement in TMD Monolayers. [PDF]
SmallA freestanding polymer metasurface is developed to enhance light emission from atomically thin semiconductors. By supporting higher‐order optical resonances that concentrate electromagnetic fields at the surface, the platform significantly improves coupling between light and WS2 monolayer.
Deng CZ +10 more
europepmc +2 more sources
Polarization singularities and optical chirality in dielectric metasurfaces [PDF]
EPJ 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
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Surface Plasmon Resonance sensor based on a D-shaped photonic crystal fiber with a bimetallic layer [PDF]
EPJ 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
Photon-Mediated Interactions near a Dirac Photonic Crystal Slab [PDF]
ACS 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