Manipulating the light intensity by magnetophotonic metasurfaces

Musorin, A. I.; Barsukova, Maria G.; Shorokhov, Alexander S.; Luk’yanchuk, Boris; Fedyanin, Andrey A.

doi:10.1016/j.jmmm.2017.11.049

Cited by 22 publications

(7 citation statements)

References 44 publications

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“…[ 35–38 ] Specifically, helicity‐preserving metasurfaces composed of sub‐wavelength, 2D dielectric disk arrays have received significant attention for supporting highly twisted electromagnetic near‐fields. [ 39–45 ] While similarly structured Si arrays coated with Ni have been shown to strengthen MO effects with linear excitation, [ 46–48 ] the capability of these metasurfaces to shape CPL by concentrating absolute electric field rotation near and within magnetic thin films has not yet been explored.…”

Section: Figurementioning

confidence: 99%

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Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]_N Films

Abendroth

Solomon

Barton

et al. 2020

Advanced Optical Materials

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materials, i.e., Faraday and Kerr effects, and magnetic circular dichroism (MCD). Circularly polarized light (CPL) pulses may also induce transient effective magnetic fields via the inverse Faraday effect (IFE), used to excite coherent spin precession at GHz and THz frequencies. [7,8] Of particular interest for manipulating magnetic order at ultrafast timescales with CPL is all-optical helicity-dependent switching (AO-HDS), which has been observed in ferromagnetic, ferrimagnetic, and granular thin films that exhibit perpendicular magnetic anisotropy. [9-12] However, contributions from MCD and the IFE to AO-HDS are difficult to deconvolve, [13-17] and understanding all-optical switching remains a challenging and widely debated topic in photonics and magnetism. [13,18-20] Enhancing local electric field rotation with CPL excitation could provide mechanistic insight, elucidate strategies toward faster and more efficient helicity-mediated switching with high spatial resolution, [21,22] and increase overall MO response for light-assisted reading and writing, essential for high-density on-chip integration. [23] Efforts to enhance MO effects below the diffraction limit and to advance the tunability of photon-electron spin interactions have been dominated by magnetoplasmonic approaches, which use localized surface plasmon resonances in metallic nanostructures or propagating surface plasmon polaritons at metal-dielectric interfaces. [24-32] For example, gold nanoparticle antennas have been used to achieve nanoconfined all-optical switching in TbFeCo films. [33] More recently, plasmon-mediated enhancement of the IFE by two orders of magnitude was shown to realize sub-THz spin precession confined within 100 nm thick regions of GdYbBIG. [34] However, plasmonic metals suffer from high intrinsic losses, and excessive heating could limit their performance near optical frequencies. Alternatively, greater efficiency could be realized with low-loss dielectric nanostructures fabricated from high-index materials that offer additional control over phase and polarization of light by virtue of their electric and magnetic Mie modes. [35-38] Specifically, helicity-preserving metasurfaces composed of sub-wavelength, 2D dielectric disk arrays have received significant attention for supporting highly twisted electromagnetic near-fields. [39-45] All-optical control and detection of magnetic states for high-density recording necessitate nanophotonic approaches to amplify local light intensity below the diffraction limit. Sculpting the near-field phase and polarization can additionally strengthen magneto-optical effects that rely on circularly polarized pulses, such as all-optical helicity-dependent switching, imaging, and spin-wave excitation. Here, high-refractive-index dielectric nanoantennas illuminated with circularly polarized light resonantly enhance local electric field rotation by more than sixfold within [Pt/Co] N thin films. Sub-wavelength arrays of amorphous Si nanodisks, or metasurfaces, patterned on perpendicularly magnetized film...

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Section: Figurementioning

confidence: 99%

“…While similarly structured Si arrays coated with Ni have been shown to strengthen MO effects with linear excitation, [46][47][48] the capability of these metasurfaces to shape CPL by concentrating absolute electric field rotation near and within magnetic thin films has not yet been explored.…”

mentioning

confidence: 99%

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]_N Films

Abendroth

Solomon

Barton

et al. 2020

Advanced Optical Materials

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“…Fano resonances play an important role in the light scattering by nanoparticles. These resonances, arising as a result of the interference of signals with wide and narrow spectra, are used in various physical, chemical, and biological applications [90][91][92][93]. The Q factor of Fano resonances increases for higher order modes; for example, the interference of the wide dipole (Rayleigh) mode and the narrow octupole mode in plasmonic particles provides a sharper resonance than the similar interference of dipole and quadrupole modes (see, e.g., Fig.…”

Section: Magnetic Light Nanovortices Directed Scattering and Fano Res...mentioning

confidence: 99%

Optical Phenomena in Dielectric Spheres Several Light Wavelengths in Size: A Review

et al. 2022

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“…15,16) Another possible way to design magnetic field sensors neglecting the influence of linear dimensions on the sensitivity and locality of a device is based on the use of magneto-optical effects in Voigt geometry. [17][18][19] The magnitude of a magneto-optical response is usually very weak even for ferromagnetic materials, but it can be enhanced by the use of magnetoplasmonic crystals (MPlCs). 20,21) MPlCs are periodically nanostructured ferromagnetic surfaces 22,23) that, due to diffraction effects, support the excitation and propagation of surface resonant evanescent coupled oscillations of metallic plasma and photons called surface plasmon polaritons.…”

Section: Introductionmentioning

confidence: 99%

Tuning the magnetic properties of permalloy-based magnetoplasmonic crystals for sensor applications

Murzin¹,

Belyaev²,

Groß³

et al. 2020

Jpn. J. Appl. Phys.

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Miniature magnetic sensors based on magnetoplasmonic crystals (MPlCs) exhibit high sensitivity and high spatial resolution, which can be obtained by the excitation of surface plasmon Q1 polaritons. The field dependence of surface plasmon polaritons' enhanced magneto-optical response strongly correlates with the magnetic properties of MPlCs that can be tuned by changing spatial parameters, such as the period and height of diffraction gratings and thicknesses of functional layers. This work compares the magnetic properties of MPlCs based on Ni 80 Fe 20 (permalloy) obtained from local (longitudinal magneto-optical Kerr effect) and bulk (vibrating-sample magnetometry) measurements and demonstrates an ability to control sensors' performance through changing the magnetic properties of MPlCs. The influence of the substrate's geometry (planar or sinusoidal and trapezoidal diffraction grating profiles) and the thickness of the surface layer is examined.

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Manipulating the light intensity by magnetophotonic metasurfaces

Cited by 22 publications

References 44 publications

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]_N Films

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]_N Films

Optical Phenomena in Dielectric Spheres Several Light Wavelengths in Size: A Review

Tuning the magnetic properties of permalloy-based magnetoplasmonic crystals for sensor applications

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Manipulating the light intensity by magnetophotonic metasurfaces

Cited by 22 publications

References 44 publications

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]N Films

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]N Films

Optical Phenomena in Dielectric Spheres Several Light Wavelengths in Size: A Review

Tuning the magnetic properties of permalloy-based magnetoplasmonic crystals for sensor applications

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Product

Resources

About

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]_N Films

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]_N Films