Strong bulk magnetic dipole induced second-harmonic generation fromC60

1993 ◽  
Vol 71 (21) ◽  
pp. 3569-3572 ◽  
Author(s):  
Bert Koopmans ◽  
Anna-Maria Janner ◽  
Harry T. Jonkman ◽  
George A. Sawatzky ◽  
Folkert van der Woude
Keyword(s):  
Second Harmonic Generation ◽  
Magnetic Dipole ◽  
Harmonic Generation ◽  
Second Harmonic

Second-harmonic generation interferometry in magnetic-dipole nanostructures

2015 ◽  
Vol 40 (16) ◽  
pp. 3758 ◽  
Author(s):  
I. A. Kolmychek ◽  
A. Yu. Bykov ◽  
E. A. Mamonov ◽  
T. V. Murzina
Keyword(s):  
Second Harmonic Generation ◽  
Magnetic Dipole ◽  
Harmonic Generation ◽  
Second Harmonic

scholarly journals 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

Nanophotonics ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Zhanghua Han ◽  
Fei Ding ◽  
Yangjian Cai ◽  
Uriel Levy
Keyword(s):  
Second Harmonic Generation ◽  
Magnetic Dipole ◽  
Harmonic Generation ◽  
Bound States ◽  
Second Harmonic ◽  
Generation Efficiency ◽  
Second Harmonic Generation Efficiency ◽  
Linearly Polarized ◽  
Magnetic Dipole Resonances ◽  
The Continuum

AbstractThe 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. Nonlinear optical effects have been widely investigated to employ the enhanced interactions between incident light and the dielectrics at the Mie-type resonances, and in particular magnetic dipole resonances, which are supported by the semiconductor. In this paper, we explore the novel phenomenon of bound states in the continuum supported by high-index semiconductor nanostructures. By carefully designing an array of nanodisk structures with an inner air slot as the defect, we show that a novel high quality-factor resonance achieved based on the concept of bound state in the continuum can be easily excited by the simplest linearly polarized plane wave at normal incidence. This resonance further enhances the interactions between light and semiconductors and boosts the nonlinear effects. Using AlGaAs as the nonlinear material, we demonstrate a significant increase in the second-harmonic generation efficiency, up to six orders of magnitude higher than that achieved by magnetic dipole resonances. In particular, a second-harmonic generation efficiency around 10% can be numerically achieved at a moderate incident pump intensity of 5 MW/cm2.

scholarly journals Second harmonic generation in metasurfaces with multipole resonant coupling

Nanophotonics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 3545-3556 ◽  
Author(s):  
Aoxue Han ◽  
Colm Dineen ◽  
Viktoriia E. Babicheva ◽  
Jerome V. Moloney
Keyword(s):  
Second Harmonic Generation ◽  
Magnetic Dipole ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Electric Quadrupole ◽  
Nanoparticle Arrays ◽  
Resonant Coupling ◽  
Plasmonic Nanoparticle ◽  
Fundamental Wavelength ◽  
Linear Resonance

AbstractWe report on the numerical demonstration of enhanced second harmonic generation (SHG) originating from collective resonances in plasmonic nanoparticle arrays. The nonlinear optical response of the metal nanoparticles is modeled by employing a hydrodynamic nonlinear Drude model implemented into Finite-Difference Time-Domain (FDTD) simulations, and effective polarizabilities of nanoparticle multipoles in the lattice are analytically calculated at the fundamental wavelength by using a coupled dipole–quadrupole approximation. Excitation of narrow collective resonances in nanoparticle arrays with electric quadrupole (EQ) and magnetic dipole (MD) resonant coupling leads to strong linear resonance enhancement. In this work, we analyze SHG in the vicinity of the lattice resonance corresponding to different nanoparticle multipoles and explore SHG efficiency by varying the lattice periods. Coupling of electric quadrupole and magnetic dipole in the nanoparticle lattice indicates symmetry breaking and the possibility of enhanced SHG under these conditions. By varying the structure parameters, we can change the strength of electric dipole (ED), EQ, and MD polarizabilities, which can be used to control the linewidth and magnitude of SHG emission in plasmonic lattices. Engineering of lattice resonances and associated magnetic dipole resonant excitations can be used for spectrally narrow nonlinear response as the SHG can be enhanced and controlled by higher multipole excitations and their lattice resonances. We show that both ED and EQ–MD lattice coupling contribute to SHG, but the presence of strong EQ–MD coupling is important for spectrally narrow SHG and, in our structure, excitation of narrow higher-order multipole lattice resonances results in five times enhancement.

Second harmonic generation of magnetic-dipole type in the centrosymmetric antiferromagnets NiO and KNiF3

2003 ◽  
Vol 258-259 ◽  
pp. 110-113 ◽  
Author(s):  
M. Fiebig ◽  
D. Fröhlich ◽  
Th. Lottermoser ◽  
V.V. Pavlov ◽  
R.V. Pisarev ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Magnetic Dipole ◽  
Harmonic Generation ◽  
Second Harmonic

Enhanced second-harmonic generation driven from magnetic dipole resonance in AlGaAs nanoantennas

2016 ◽  
Author(s):  
Luca Carletti ◽  
Davide Rocco ◽  
Andrea Locatelli ◽  
Valerio Gili ◽  
Giuseppe Leo ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Magnetic Dipole ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Dipole Resonance

Second Harmonic Generation and Magnetic-Dipole-Electric-Dipole Interference in AntiferromagneticCr2O3

1994 ◽  
Vol 73 (15) ◽  
pp. 2127-2130 ◽  
Author(s):  
M. Fiebig ◽  
D. Fröhlich ◽  
B. B. Krichevtsov ◽  
R. V. Pisarev
Keyword(s):  
Second Harmonic Generation ◽  
Magnetic Dipole ◽  
Harmonic Generation ◽  
Electric Dipole ◽  
Second Harmonic
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