Second-Harmonic Generation from Magnetic Metamaterials

By M. Klein, C. Enkrich, M. Wegener, S. Linden. Science, 2006

714 citations recorded by the source corpus.

We observe second-harmonic generation from metamaterials composed of split-ring resonators excited at 1.5-micrometer wavelength. Much larger signals are detected when magnetic-dipole resonances are excited, as compared with purely electric-dipole resonances. The experiments are consistent with calculations based on the magnetic component of the Lorentz force exerted on metal electrons—an intrinsic second-harmonic generation mechanism that plays no role in natural materials. This unusual mechanism becomes relevant in our work as a result of the enhancement and the orientation of the local magnetic fields associated with the magnetic-dipole resonances of the split-ring resonators.

Subfields: Aerospace Engineering, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/603c18fd6a1ecfff740bb8b84646ecfd1370a1a1

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Citations in the corpus

A review of metasurfaces: physics and applications (2016, background): “ness) excited at their magnetic resonance [234, 235], where the nonlinearity is associated with the dynamics of free and bound charges, particularly at the metal surface [236].”
Metamaterial-based perfect absorbers (2014, background): “The nonlinear properties of MM have been clearly demonstrated in many works.[115,116] A broadband THz generation from MM has been recently demonstrated, which promises the potential to fulfil the THz-gap region in the near future.”
Giant nonlinear response from plasmonic metasurfaces coupled to intersubband transitions (2014, methodology): “From equation (12) we can obtain the expression for SHG intensity output I2v from the metasurface”
Optical negative-index metamaterials (2007, background): “, and the first experimental studies of SHG in magnetic split-ring resonator metamaterials have been reporte”
Classical theory for second-harmonic generation from metallic nanoparticles. Phys Rev B 79:235109 (2008, methodology): “8), and the thicknesses of the gold and indium-tin-oxide layers are 25 nm and 5 nm, respectively [34, 40, 42].”