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Metasurfaces are nanopatterned structures of sub-wavelength thickness. Their effective
refractive index and spectral characteristic can be tailored by material composition, intrinsic …

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[PDF] arxiv.org

High-efficiency optical frequency mixing in an all-dielectric metasurface enabled by multiple bound states in the continuum

T Liu, M Qin, F Wu, S **ao - Physical Review B, 2023 - APS

We present nonlinear optical four-wave mixing in a silicon nanodisk dimer metasurface.
Under the oblique incident plane waves, the designed metasurface exhibits a multiresonant …

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[PDF] optica.org Full View

Robust enhancement of high-harmonic generation from all-dielectric metasurfaces enabled by polarization-insensitive bound states in the continuum

S **ao, M Qin, J Duan, T Liu - Optics express, 2022 - opg.optica.org

The emerging all-dielectric platform exhibits high-quality (Q) resonances governed by the
physics of bound states in the continuum (BIC) that drives highly efficient nonlinear optical …

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[PDF] optica.org Full View

Polarization-independent toroidal dipole resonances driven by symmetry-protected BIC in ultraviolet region

X Wang, S Li, C Zhou - Optics Express, 2020 - opg.optica.org

Optical resonances have gained great attention in nanophotonics attributing to their large
enhancement of local field. In this work, we investigate polarization-independent toroidal …

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Circularly polarized laser emission from an electrically pumped chiral microcavity

AA Maksimov, EV Filatov, II Tartakovskii… - Physical Review …, 2022 - APS

Engineering the chirality of optical microcavities is a central concept of modern photonics to
gain full control the polarization of the confined electromagnetic mode. Here, we …

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[PDF] arxiv.org

Tuning nonlinear second-harmonic generation in AlGaAs nanoantennas via chalcogenide phase-change material

T Liu, X Fang, S **ao - Physical Review B, 2021 - APS

The ability to engineer nonlinear optical processes in all-dielectric nanostructures is both of
fundamental interest and highly desirable for high-performance, robust, and miniaturized …

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[PDF] researchgate.net

Polarization-insensitive and polarization-controlled dual-band third-harmonic generation in silicon metasurfaces driven by quasi-bound states in the continuum

M Qin, G Wei, H Xu, R Ma, H Li, W Gao, J Liu… - Applied Physics …, 2024 - pubs.aip.org

High-refractive-index nanostructures offer versatile opportunities for nonlinear optical effects,
due to their ability to strongly confine field into a subwavelength scale. Herein, we propose a …

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[PDF] optica.org

Enhancement of second-harmonic generation from Fano plasmonic metasurfaces by introducing structural asymmetries

Y Liu, L Gui, K Xu - Optics Express, 2022 - opg.optica.org

Resonant plasmonic metasurfaces have attracted much attention for great potential in
augmenting nonlinear optical conversion at the nanoscale and thus related sensing and …

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Polarization-controlled third harmonic generation by quasi-bound states in the continuum in silicon nanopillar metasurfaces

H Xu, Q Du, X **ao, Y Chen - Applied Surface Science, 2024 - Elsevier

All-dielectric metasurfaces have received widespread attention due to their low intrinsic loss
compared to the metallic counterparts. However, relatively high radiation loss and low …

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High-efficiency optical frequency mixing in an all-dielectric metasurface enabled by multiple bound states in the continuum

Robust enhancement of high-harmonic generation from all-dielectric metasurfaces enabled by polarization-insensitive bound states in the continuum

Polarization-independent toroidal dipole resonances driven by symmetry-protected BIC in ultraviolet region

Circularly polarized laser emission from an electrically pumped chiral microcavity

Tuning nonlinear second-harmonic generation in AlGaAs nanoantennas via chalcogenide phase-change material

Polarization-insensitive and polarization-controlled dual-band third-harmonic generation in silicon metasurfaces driven by quasi-bound states in the continuum

Enhancement of second-harmonic generation from Fano plasmonic metasurfaces by introducing structural asymmetries

Polarization-controlled third harmonic generation by quasi-bound states in the continuum in silicon nanopillar metasurfaces