Results 51 to 60 of about 478 (152)

Polarizability and magnetoplasmonic properties of magnetic general nanoellipsoids [PDF]

open access: yes, 2013
An approach to compute the polarizability tensor of magnetic nanoparticles having general ellipsoidal shape is presented. We find a surprisingly excellent quantitative agreement between calculated and experimental magneto-optical spectra measured in the ...
Abe   +77 more
core   +4 more sources

Symmetry Breaking of Molecules Triggered by Chiral Inorganic Nanostructures Without Organic Components

open access: yesAdvanced Science, Volume 12, Issue 32, August 28, 2025.
Chiral nano‐inorganics, free of organic chiral ligands, provide a novel platform to direct symmetry breaking in molecular systems, through inorganic‐to‐organic chirality transfer via enantiospecific inorganic–organic interactions, circularly polarized light, and electron spin‐driven enantiopreferential reactions governed by chiral‐induced spin ...
Tao Yao   +3 more
wiley   +1 more source

Magnetic hysteresis in nanocomposite films consisting of a ferromagnetic AuCo alloy and ultrafine Co particles [PDF]

open access: yes, 2017
open7noopenChinni, Federico; Spizzo, Federico; Montoncello, Federico; Mattarello, Valentina; Maurizio, Chiara; Mattei, Giovanni; DEL BIANCO, LuciaChinni, Federico; Spizzo, Federico; Montoncello, Federico; Mattarello, Valentina; Maurizio, Chiara; Mattei ...

core   +1 more source

Volatile and Non‐Volatile Dual‐Function Electrically Controlled Ultraviolet Magneto‐Optical Effect in TmIG/Pt

open access: yesAdvanced Electronic Materials, Volume 11, Issue 3, March 2025.
Pre‐magnetized TmIG/Pt achieves volatile circular dichroism (CD) control via current‐induced temperature gradients, without needing a magnetic field, particularly in the UV range due to the Laporte selection switch of the O(2p)→Fe(3d) and O(2p)→Tm(5d) optical transitions through Tm(4f)‐O(2p) interaction.
Wan‐Hsiu Chang Chien   +9 more
wiley   +1 more source

Plasmonic crystals for ultrafast nanophotonics: Optical switching of surface plasmon polaritons

open access: yes, 2011
We demonstrate that the dispersion of surface plasmon polaritons in a periodically perforated gold film can be efficiently manipulated by femtosecond laser pulses with the wavelengths far from the intrinsic resonances of gold. Using a time- and frequency-
A. K. Zvezdin   +9 more
core   +1 more source

Plasmon-Interband Coupling in Nickel Nanoantennas [PDF]

open access: yes, 2014
Plasmonic excitations are usually attributed to the free electron response at visible frequencies in the classic plasmonic metals Au and Ag. However, the vast majority of metals exhibit spectrally localized interband transitions or broad interband ...
Dmitriev, Alexandre   +4 more
core   +1 more source

Optical Nanolinks With Yagi–Uda‐Loop and Dipole Antennas Fed by Gaussian Beam

open access: yesInternational Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.
This work presents a theoretical comparative analysis of wireless optical nanolinks with different cylindrical plasmonic nanoantennas fed by a Gaussian beam. The nanolinks considered are Yagi–Uda‐loop/dipole, Yagi–Uda/dipole and dipole/dipole, where the operating wavelength is λ = 1153 nm.
Paulo R. Amaral   +2 more
wiley   +1 more source

Resonant enhancement of second harmonic generation in the mid-infrared using localized surface phonon polaritons in sub-diffractional nanostructures

open access: yes, 2016
We report on strong enhancement of mid-infrared second harmonic generation (SHG) from SiC nanopillars due to the resonant excitation of localized surface phonon-polaritons within the Reststrahlen band.
Caldwell, Joshua D.   +10 more
core   +2 more sources

Magneto-Optical Activity in High Index Dielectric Nanoantennas [PDF]

open access: yes, 2016
The magneto-optical activity, namely the polarization conversion capabilities of high- index, non-absorbing, core-shell dielectric nanospheres is theoretically analyzed.
Froufe-Pérez, Luis S.   +3 more
core   +2 more sources

Magnetoplasmon resonances in nanoparticles

open access: yesPhysical Review B, 2020
Nanoparticle plasmon resonances can be controlled using external magnetic fields or internal magnetization. The modified resonance condition is complicated, however, by the induced anisotropy of the dielectric response. Working within the electrostatic regime, we formulate a simple eigenvalue problem for the magnetoplasmon resonances.
openaire   +2 more sources

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