Articles with "optical chirality" as a keyword



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Plexcitonic Optical Chirality: Strong Exciton-Plasmon Coupling in Chiral J-Aggregate-Metal Nanoparticle Complexes.

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Published in 2020 at "ACS nano"

DOI: 10.1021/acsnano.0c08274

Abstract: Understanding the unique characteristics of plexcitons, hybridized states resulting from the strong coupling between plasmons and excitons, is vital for both fundamental studies and practical applications in nano-optics. However, the research of plexcitons from the… read more here.

Keywords: chirality; exciton; extinction; metal ... See more keywords

Chiral Plasmonic Nanocavities Enable Efficient Circularly Polarized Luminescence through Tailored Optical Chirality.

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Published in 2025 at "ACS nano"

DOI: 10.1021/acsnano.5c05909

Abstract: Ultrastrong enhancement of circularly polarized luminescence (CPL) is achieved with chiral plasmonic nanocavities made of helicoid-on-mirror structures. The large local optical chirality enhancement, along with local electric field enhancement in the ultrathin chiral nanocavities, generates… read more here.

Keywords: enhancement; chiral plasmonic; polarized luminescence; optical chirality ... See more keywords

Switching the Optical Chirality in Magneto-Plasmonic Metasurfaces Using Applied Magnetic Fields.

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Published in 2020 at "ACS nano"

DOI: 10.1021/acsnano.9b05062

Abstract: Chiral nanophotonic devices are promising candidates for chiral molecules sensing, polarization diverse nanophotonics and display technologies. Active chiral nanophotonic devices, where the optical chirality can be controlled by an external stimulus has triggered great research… read more here.

Keywords: optical chirality; magnetic fields; applied magnetic; magneto plasmonic ... See more keywords

Maximal Optical Chirality via Mode Coupling in Bilayer Metasurfaces

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Published in 2025 at "ACS Photonics"

DOI: 10.1021/acsphotonics.5c01770

Abstract: Recent advances in the physics of resonant optical metasurfaces allowed to realize the so-called {\it maximum chirality} of planar structures by engineering their geometric parameters. Here we employ bilayer membrane metasurfaces with a square lattice… read more here.

Keywords: maximal optical; optical chirality; chirality; chirality via ... See more keywords

Optical Chirality of Time-Harmonic Wavefields for Classification of Scatterers

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Published in 2018 at "Scientific Reports"

DOI: 10.1038/s41598-018-27496-w

Abstract: We derive expressions for the scattering, extinction and conversion of the chirality of monochromatic light scattered by bodies which are characterized by a T-matrix. In analogy to the conditions obtained from the conservation of energy,… read more here.

Keywords: classification; chirality; harmonic wavefields; chirality time ... See more keywords

Optical chirality of vortex beams at the nanoscale.

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Published in 2023 at "Nanoscale"

DOI: 10.1039/d2nr05426d

Abstract: In this work we undertake a systematic study of the optical chirality density of Laguerre-Gaussian and Bessel laser beams tightly focused into nanoscale volumes. In particular we highlight the unique contributions to optical chirality from… read more here.

Keywords: nanoscale optical; optical chirality; beams nanoscale; chirality vortex ... See more keywords

Optical Chirality in Nonlinear Optics: Application to High Harmonic Generation.

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Published in 2018 at "Physical review letters"

DOI: 10.1103/physrevlett.120.133206

Abstract: Optical chirality (OC)-one of the fundamental quantities of electromagnetic fields-corresponds to the instantaneous chirality of light. It has been utilized for exploring chiral light-matter interactions in linear optics, but has not yet been applied to… read more here.

Keywords: chirality; optics; generation; optical chirality ... See more keywords

Optical chirality breaking in a bilayered chiral metamaterial.

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Published in 2017 at "Optics express"

DOI: 10.1364/oe.25.023051

Abstract: We propose a planar optical bilayered chiral metamaterial, which consists of periodic metallic arrays of two L-shaped structures and a nanorod twisted on both sides of a dielectric slab, to investigate the optical chirality breaking… read more here.

Keywords: chiral metamaterial; bilayered chiral; breaking bilayered; chirality breaking ... See more keywords
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Tunable optical chirality in a metamaterial platform with off-resonantly coupled metal-dielectric components.

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Published in 2018 at "Optics express"

DOI: 10.1364/oe.26.017289

Abstract: Here we present a tunable chiral metamaterial platform that incorporates both metal and dielectric components, where the sign and magnitude of the circular dichroism (CD) response depend on the refractive index of the dielectric component.… read more here.

Keywords: metal dielectric; metamaterial platform; tunable optical; optical chirality ... See more keywords

Generation of optical chirality patterns with plane waves, evanescent waves and surface plasmon waves.

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Published in 2020 at "Optics express"

DOI: 10.1364/oe.383021

Abstract: We systematically investigate the generation of optical chirality patterns by applying the superposition of two waves in three scenarios, namely free-space plane waves, evanescent waves of totally reflected light at dielectric interface and propagating surface… read more here.

Keywords: surface plasmon; optical chirality; plasmon waves; evanescent waves ... See more keywords

Giant optical chirality in dielectric metasurfaces induced by toroidal dipole resonances.

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Published in 2023 at "Optics letters"

DOI: 10.1364/ol.482857

Abstract: Although toroidal dipole (TD) resonance is a highly localized mode with a high quality (Q) factor, in most chiral structures the TD resonance is much weaker than the electric or magnetic dipole resonances and contributes… read more here.

Keywords: optical chirality; giant optical; toroidal dipole; dipole resonances ... See more keywords