High-Refractive-Index Materials for Giant Enhancement of the Transverse Magneto-Optical Kerr Effect

Moncada-Villa, E.; Mejía‐Salazar, J. R.

doi:10.3390/s20040952

Cited by 14 publications

(4 citation statements)

References 34 publications

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“…, where e ijk is the Levi-Civita tensor and i, j, k = x, y, z. g k considers the MO activity for the Ce:YIG film. In this study, for Ce:YIG at a working wavelength of λ = 632.8 nm, ε xx 0 = ε yy 0 = ε zz 0 = 5.6829 + 0.57962i [24]. Considering the direction of the magnetic field and plane of incidence, g x = g z = 0, g y = − 0.01564 + 0.0014769i are adopted.…”

Section: Model and Simulationmentioning

confidence: 99%

Fabry–Perot interference enhanced transverse magneto-optical Kerr effect in Ce:YIG nanopore array on an anodic aluminum oxide template

Zhang¹,

Lü²,

An³

2022

J. Opt.

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The all-dielectric magneto-optical (MO) structure has garnered considerable interest due to its enhanced MO effect and low ohmic loss compared to the magnetoplasmonic structure. In this study, the effect of Fabry–Perot (F–P) interference on the enhancement of the transverse magneto-optical Kerr effect (T-MOKE) as well as sensing performance is theoretically investigated in a dielectric MO structure composed of cerium-substituted yttrium iron garnet (Ce:YIG) nanopore array coating an anodic aluminum oxide film standing on an aluminum sheet referred to as the AAO/Al template. The system is particularly interesting because the MO response is significantly enhanced in the position of the F–P interference, in which the T-MOKE signal is close to a 5-fold increase compared with the reference Ce:YIG film. Additionally, the sensing performance shows that the all-dielectric nanopore-based system proposed here provides an alternative to fabricating gas and solution detectors with low ohmic loss

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Section: Model and Simulationmentioning

confidence: 99%

Fabry–Perot interference enhanced transverse magneto-optical Kerr effect in Ce:YIG nanopore array on an anodic aluminum oxide template

Zhang¹,

Lü²,

An³

2022

J. Opt.

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“…Compared with the above-mentioned MO nanostructures, all-dielectric MO metasurfaces [68][69][70][71] have the advantages of low optical loss, high Q value, and compatibility with CMOS technology, which have important research significance. In 2018, Christofi et al [72] reported that an all-dielectric MO metasurface composed of BIG nanodisk array embedded in a low-refractive-index SiO 2 could achieve a giant enhancement of Faraday rotation.…”

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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“…Thus, the research on improving TMOKE intensity has been widely reported in recent years. Many optical resonant modes such as SPR, [3,[25][26][27][28] waveguide (WG) mode, [22,29] optical Tamm (OT) mode, [30] and Fabry-Perot effect [31] can be excited in designed nanostructures to enhance TMOKE. Comparatively, SPR and WG modes are more effective since their wave vectors can be nonreciprocally modified under the action of an external magnetic field, leading to a considerable enhancement of TMOKE.…”

Section: Introductionmentioning

confidence: 99%

Unconventional Transverse Magneto‐Optical Kerr Effect in Cobalt Nanopillar Arrays

Cheng,

Yang,

Liu

et al. 2024

Advanced Optical Materials

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Novel magneto‐optical (MO) properties can be actualized through well‐designed nanostructures, greatly improving the application value of MO effects. As only p‐polarized light can generate transverse magneto‐optical Kerr effect (TMOKE) in traditional MO materials, it is quite challenging and valuable to effectuate TMOKE under s‐polarization incidence at optical frequencies. The constructed nanopillar structures in this work can realize a clear TMOKE under both s‐polarization and p‐polarization incidences, as proved by experiments and simulations. Under s‐polarized incident light with an elevation angle of 45°, electric dipole resonance (EDR) and electric quadrupole resonance (EQR) are excited, resulting in the significant enhancement of TMOKE (five orders of magnitude higher than for the planar Co film). The intensity of s‐polarized TMOKE shows an increase with the enhancing diameter and height of the nanopillar structure. The amplitude of p‐polarized TMOKE is also appreciably increased due to the excitation of surface plasmon polaritons (SPPs) and localized surface plasmons (LSPs). Moreover, the Fe and Ni nanopillars display similar reflectivity and s‐polarized TMOKE behaviors in simulations. The s‐polarized TMOKE is unexpectedly observed in ferromagnetic metals for the first time, which builds up a considerable platform for the development and application of novel MO phenomena.

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High-Refractive-Index Materials for Giant Enhancement of the Transverse Magneto-Optical Kerr Effect

Cited by 14 publications

References 34 publications

Fabry–Perot interference enhanced transverse magneto-optical Kerr effect in Ce:YIG nanopore array on an anodic aluminum oxide template

Fabry–Perot interference enhanced transverse magneto-optical Kerr effect in Ce:YIG nanopore array on an anodic aluminum oxide template

Magnetically controllable metasurface and its application

Unconventional Transverse Magneto‐Optical Kerr Effect in Cobalt Nanopillar Arrays

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