Results 21 to 30 of about 216,031 (287)

Dataset for "Chiral nanosurfaces for enhancement of local electromagnetic field"

open access: yes, 2021
This dataset contains the results of calculations of electric fields and optical chirality 1 nm above the surface of an array of gold nanobars with varying length.
Ohnoutek, Lukas   +6 more
core   +2 more sources

Optical generation of strong-field terahertz radiation and its application in nonlinear terahertz metasurfaces

open access: yesNanophotonics, 2022
Extremely nonlinear terahertz (THz)-matter interactions and applications have positioned themselves as the next frontier in quantum information, nonlinear optics, and particle acceleration.
Ma Zhenzhe   +3 more
doaj   +1 more source

Local field enhancement and thermoplasmonics in multimodal aluminum structures [PDF]

open access: yesPhysical Review B, 2017
Aluminum nanostructures have recently been at the focus of numerous studies due to their properties including oxidation stability and surface plasmon resonances covering the ultraviolet and visible spectral windows. In this article, we reveal a new facet of this metal relevant for both plasmonics purpose and photo-thermal conversion.
Wiecha, Peter   +8 more
openaire   +3 more sources

Local field enhancement using a photonic-plasmonic nanostructure

open access: yesOptics Express, 2021
Over the last few years, optical nanoantennas are continuously attracting interest owing to their ability to efficiently confine, localize resonance, and significantly enhanced electromagnetic fields at a subwavelength scale. However, such strong confinement can be further enhanced by using an appropriate combination of optical nanoantennas and Slanted
Liyi Hsu, Fadi I. Baida, Abdoulaye Ndao
openaire   +3 more sources

Local electric field enhancement during nanofocusing of plasmons by a tapered gap [PDF]

open access: yes, 2007
We demonstrate that during plasmon nanofocusing in a tapered gap (V groove), local electric field experiences much stronger enhancement than the magnetic field.
Vogel, Michael W.   +6 more
core   +1 more source

Field localization and rescattering in tip‐enhanced photoemission

open access: yesAnnalen der Physik, 2012
This article presents a quantum mechanical treatment of strong‐field photoelectron emission from nanostructures. The effects of a spatial inhomogeneity of the optical near‐field are identified. Furthermore, the importance of electron scattering at the surface is elucidated by contrasting simulations with and without backscattering. Convincing agreement
Yalunin, S.   +7 more
openaire   +4 more sources

Significantly enhanced second-harmonic generations with all-dielectric antenna array working in the quasi-bound states in the continuum and excited by linearly polarized plane waves

open access: yesNanophotonics, 2020
The recently emerging all-dielectric optical nanoantennas based on high-index semiconductors have proven to be an effective and low-loss alternative to metal-based plasmonic structures for light control and manipulations of light–matter interactions ...
Han Zhanghua   +3 more
doaj   +1 more source

Nonlinear plasmonic imaging techniques and their biological applications

open access: yesNanophotonics, 2017
Nonlinear optics, when combined with microscopy, is known to provide advantages including novel contrast, deep tissue observation, and minimal invasiveness.
Deka Gitanjal   +3 more
doaj   +1 more source

Huge local field enhancement in perfect plasmonic absorbers

open access: yesOptics Express, 2012
In this Letter we theoretically study the possibility of total power absorption of light in a planar grid modelled as an effective sheet with zero optical thickness. The key prerequisite of this effect is the simultaneous presence of both resonant electric and magnetic modes in the structure.
Albooyeh, M., Simovski, C.
openaire   +8 more sources

Chiral nanosurfaces for enhancement of local electromagnetic field

open access: yesNonlinear Optics and Applications XII, 2021
The ability of plasmonic nanosurfaces to produce strong electromagnetic fields in their vicinity upon illumination can be used to enhance effects, such as those originating from chirality (lack of mirror symmetry) of molecules. We numerically investigate chiral nanosurfaces composed of plasmonic nanobars with varying packing densities.
Lukas Ohnoutek, Ventsislav K. Valev
openaire   +3 more sources

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