Results 91 to 100 of about 936 (152)
Advances in Photonic and Plasmonic Nanomaterials
NanomaterialsNanomaterials and nanostructures with different morphologies or geometrical shapes that exploit plasmons, and particularly surface plasmon polaritons, are useful for a wide range device fabrication-related applications [...]
Nikolaos G. Semaltianos
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Inverse Drexhage Effect in Epsilon‐Near‐Zero Substrates
Nanophotonics, Volume 15, Issue 15, 13 August 2026.Radiative emission of dipoles near substrates is shown to reverse between (a) perfect electric conductors and (b) epsilon‐near‐zero (ENZ) media. The schematic highlights switch from vertical to horizontal dipole dominance, governed by interference with image dipoles, leading to directional emission into the upper half‐space and enabling new strategies ...
Sandeep Kumar Chamoli, Mohamed ElKabbash
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Optical Responses From Zero Optical‐Path‐Length Object
Nanophotonics, Volume 15, Issue 15, 13 August 2026.This work address a fundamental question—what is the ultimately minimal embodiment of optical objects that produce useful optical effects? In fact, such an object does not require nonzero physical and optical‐path‐length volume as opposed to the conventional perception.
Da Yong Lee +3 more
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Electrical Generation of Surface Plasmon Polaritons in Plasmonic Heterostructures
Physical Review LettersSurface plasmon polaritons (SPPs) can be understood as two-dimensional light confined to a conductor-dielectric interface via plasmonic excitations. While low-energy SPPs behave similarly to photons, higher-frequency SPPs resemble surface plasmons. Electrically generating mid-range SPPs is particularly challenging because it requires compensating for ...
openaire +3 more sources
Tunable Unidirectional Guided Resonances via Multi‐Singularity Interactions in Momentum Space
Nanophotonics, Volume 15, Issue 15, 13 August 2026.C points can intrinsically coexist around symmetry‐protected BICs without symmetry reduction. Symmetry breaking splits SP‐BICs into new C points that interact with intrinsic ones, forming perfect UGRs at distinct k points with tunable topological charges.
Ying Yu +5 more
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Spin Injection Of Exciton–Polaritons With Halide Perovskites At Room Temperature
Advanced Functional Materials, Volume 36, Issue 67, 20 August 2026.A monolithic Tamm‐plasmon microcavity embedding a two‐dimensional halide perovskite enables room‐temperature spin injection of exciton‐polaritons under quasi‐resonant optical excitation. Polarization‐resolved spectroscopy reveals partial preservation of the injected spin in the lower polariton branch, while bare excitons remain fully depolarized.
Elena Sendarrubias Arias‐Camisón +8 more
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EPJ Web of Conferences, 2013 We demonstrate ultrafast coherent manipulation of the normal mode splitting in metal/molecular-aggregate nanostructures by real-time observation of Rabi oscillations between excitons and surface-plasmon-polaritons. Oscillations in exciton density on a 10-
Cerullo G. +7 more
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Velocity‐Tunable Exciton‐Photon Hybridization in Cathodoluminescence
Advanced Functional Materials, Volume 36, Issue 62, 3 August 2026.Transition‐radiation resonances in suspended thin crystals hybridise with excitonic transitions under free‐electron excitation. By tuning the electron energy, the photonic resonances are continuously detuned across the exciton states, enabling controllable exciton–photon hybridisation below the diffraction limit without altering the system geometry ...
Sven Ebel +4 more
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Advanced Materials, Volume 38, Issue 45, 13 August 2026.Vacuum‐assisted capillary infiltration delivers perovskite precursors deep into gold nanohole plasmonic hotspots, enabling uniform in situ crystallization of bulk‐like CsPbBr3 within confined cavities. Verified by peel‐off and structural analyses, the hybrid platform shows simulated |E/E₀| ≈2.80 at 800 nm and ∼40‐fold two‐photon absorption‐enhanced ...
Jung‐Jae Do +8 more
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Transmission of surface plasmon polaritons through atomic-size constrictions
New Journal of Physics, 2013 We study the excitation and propagation of surface plasmon polaritons (SPPs) on a micron-sized thin gold stripe. Grating couplers are embedded for both excitation of SPPs and detection after propagation.
D Benner +5 more
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