Transverse Magneto-Optical Kerr Effect in Strongly Coupled Plasmon Gratings

Chesnitskiy, Anton V.; Gayduk, Alexey E.; Prinz, V. Ya.

doi:10.1007/s11468-017-0584-3

Cited by 8 publications

(4 citation statements)

References 27 publications

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“…Control of light by an external magnetic field is one of the important methods for modulation of its intensity and polarization . Magneto-optical effects at the nanoscale are usually observed in magnetophotonic crystals, − nanostructured hybrid materials, − or magnetoplasmonic crystals. − The early studies on the enhancement of magneto-optical response in nanostructured materials were done more than 30 years ago. − An indirect action of an external magnetic field (e.g., through the Faraday effect) is explained by the fact that natural materials exhibit negligible magnetism at optical frequencies. However, the concept of metamaterials overcome this limitation imposed by nature by designing artificial subwavelength meta-atoms that support a strong magnetic response, usually termed as optical magnetism, even when they are made of nonmagnetic materials .…”

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confidence: 99%

Magneto-Optical Response Enhanced by Mie Resonances in Nanoantennas

et al. 2017

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Control of light by an external magnetic field is one of the important methods for modulation of its intensity and polarisation [1]. Magneto-optical effects at the nanoscale are usually observed in magnetophotonic crystals [2,3], nanostructured hybrid materials [4][5][6] or magnetoplasmonic crystals [7][8][9][10][11]. An indirect action of an external magnetic field (e.g. through the Faraday effect) is explained by the fact that natural materials exhibit negligible magnetism at optical frequencies. However, the concept of metamaterials overcome this limitation imposed by nature by designing artificial subwavelength meta-atoms that support a strong magnetic response, usually termed as optical magnetism, even when they are made of nonmagnetic materials [12]. The fundamental question is what would be the effect of the interaction between an external magnetic field and an optically-induced magnetic response of metamaterial structures. Here we make the first step toward answering this fundamental question and demonstrate the multifold enhancement of the magneto-optical response of nanoantenna lattices due to the optical magnetism.Nanophotonics is often associated with plasmonic structures made of metals such as gold or silver. However, it is known that plasmonic structures suffer from high losses of metals, heating, and incompatibility with CMOS fabrication processes. Recent developments in the nanoscale optical physics gave birth to a new branch of nanophotonics aiming at the manipulation of opticallyinduced Mie-type resonances in dielectric nanoparticles made of materials with high refractive indices [12][13][14][15]. It has been shown recently that resonant dielectric structures offer unique opportunities for reduced dissipative losses and large resonant enhancement of both electric and magnetic fields. High-index dielectric structures can be employed as new building blocks to obtain unique functionalities such as magnetic Fano resonances [16,17], highly transmittable metasurfaces [18,19], and novel metadevices [20,21]. Here we extend the concept of high-index resonant nanophotonics to the case of magnetically active materials and study the magneto-optical (MO) response of a dielectric metasurface covered with a thin magnetic film, as shown schematically in Fig. 1. * Corresponding author: fedyanin@nanolab.phys.msu.ruWe emphasize that at the microscopic level the optical Figure 1. Schematic illustration of the enhancement of magneto-optical effects in a nanoscale structure. Linearly polarized light is focused on a dielectric metasurface composed of silicon nanoparticles supporting magnetic Mietype resonances, the metasurface is covered by a thin nickel film. The sample is subjected to the action of an external magnetic field oriented perpendicular to the wave vector of the incident light. Inset shows an SEM image of the sample.response is driven by electric dipoles, but high-index dielectric nanoparticles with this microscopic response generate effectively magnetic multipoles. Despite its geometrical simplicity, a ...

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confidence: 99%

Magneto-Optical Response Enhanced by Mie Resonances in Nanoantennas

et al. 2017

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“…This microscopic effect emulates “Venetian blinds” and leads to dynamic changes in the optical properties of the investigated structures in real time. In the field of designing structurally defined colors, considerable success has been achieved owing to the use of bioinspired structures, which are based on the phenomenon of Bragg diffraction [ 157 , 158 , 159 , 160 ]. In addition, a number of biomimetic non-magnetic photonic structures have been created, including artificial opals and lamellar interference structures of the butterfly-wing type [ 161 , 162 , 163 , 164 ].…”

Section: Functional Magnetic Cilia and Tactile Sensorsmentioning

confidence: 99%

Bio-Inspired Micro- and Nanorobotics Driven by Magnetic Field

et al. 2022

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In recent years, there has been explosive growth in the number of investigations devoted to the development and study of biomimetic micro- and nanorobots. The present review is dedicated to novel bioinspired magnetic micro- and nanodevices that can be remotely controlled by an external magnetic field. This approach to actuate micro- and nanorobots is non-invasive and absolutely harmless for living organisms in vivo and cell microsurgery, and is very promising for medicine in the near future. Particular attention has been paid to the latest advances in the rapidly developing field of designing polymer-based flexible and rigid magnetic composites and fabricating structures inspired by living micro-objects and organisms. The physical principles underlying the functioning of hybrid bio-inspired magnetic miniature robots, sensors, and actuators are considered in this review, and key practical applications and challenges are analyzed as well.

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“…Besides, the MO effect enhancement of 1D grating [61][62][63][64], and 2D nanoarray of different shapes [65,66] in similar physical mechanisms was also reported. In addition to the above mentioned metal/dielectric double-layer structure, the metal/dielectric/metal structure, such as Ag/ Bi:YIG/Ag, could also realize the MO effect enhancement, and an asymmetric Fano resonance was found in the reflection spectrum of TMOKE signal [67]. The phenomenon was derived from the coupling of localized and propagating plasmon resonance modes to form the Fano resonance, leading to the enhancement of MO effect.…”

Section: Magnetoplasmonic and Magneto-optical Metasurfacesmentioning

confidence: 99%

Magnetically controllable metasurface and its application

Huang

et al. 2021

Front. Optoelectron.

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The dynamic control of the metasurface opens up a vital technological approach for the development of multifunctional integrated optical devices. The magnetic field manipulation has the advantages of sub-nanosecond ultra-fast response, non-contact, and continuous adjustment. Thus, the magnetically controllable metasurface has attracted significant attention in recent years. This study introduces the basic principles of the Faraday and Kerr effect of magneto-optical (MO) materials. It classifies the typical MO materials according to their properties. It also summarizes the physical mechanism of different MO metasurfaces that combine the MO effect with plasmonic or dielectric resonance. Besides, their applications in the nonreciprocal device and MO sensing are demonstrated. The future perspectives and challenges of the research on MO metasurfaces are discussed.

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Transverse Magneto-Optical Kerr Effect in Strongly Coupled Plasmon Gratings

Cited by 8 publications

References 27 publications

Magneto-Optical Response Enhanced by Mie Resonances in Nanoantennas

Magneto-Optical Response Enhanced by Mie Resonances in Nanoantennas

Bio-Inspired Micro- and Nanorobotics Driven by Magnetic Field

Magnetically controllable metasurface and its application

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