Enhancing the magneto-optical Kerr effect through the use of a plasmonic antenna

Loughran, T. H. J.; Keatley, P. S.; Hendry, Euan; Barnes, Bill; Hicken, R. J.

doi:10.1364/oe.26.004738

Cited by 24 publications

(11 citation statements)

References 42 publications

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“…Plasmonic metasurfaces have been employed for other second-order processes like sum-frequency generation (SFG) 66 , 67 and difference-frequency generation (DFG) 68 – 70 In contrast, third-order nonlinear effects, such as the Kerr effect, 71 – 73 third-harmonic generation (THG), 29 , 31 , 74 – 77 and four-wave mixing (FWM), 23 , 25 , 78 – 83 are free from symmetry considerations for linear polarized light. In addition, high-harmonic generation 84 and supercontinuum white-light generation 32 have also been realized using plasmonic nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear optics in all-dielectric nanoantennas and metasurfaces: a review

2019

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Freed from phase-matching constraints, plasmonic metasurfaces have contributed significantly to the control of the optical nonlinearity and enhancing the nonlinear generation efficiency by engineering subwavelength meta-atoms. However, the high dissipative losses and the inevitable thermal heating limit their applicability in nonlinear nanophotonics. All-dielectric metasurfaces, supporting both electric and magnetic Mie-type resonances in their nanostructures, have appeared as a promising alternative to nonlinear plasmonics. High-index dielectric nanostructures, allowing additional magnetic resonances, can induce magnetic nonlinear effects, which along with electric nonlinearities increase the nonlinear conversion efficiency. In addition, low dissipative losses and high damage thresholds provide an extra degree of freedom for operating at high pump intensities, resulting in a considerable enhancement of the nonlinear processes. In this review, we discuss the current state-of-the-art in the intensely developing area of all-dielectric nonlinear nanostructures and metasurfaces, including the role of Mie modes, Fano resonances and anapole moments for harmonic generation, wave mixing, and ultrafast optical switching. Furthermore, we review the recent progress in the nonlinear phase and wavefront control using all-dielectric metasurfaces. We discuss techniques to realize all-dielectric metasurfaces for multifunctional applications and generation of secondorder nonlinear processes from CMOS compatible materials.

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Section: Introductionmentioning

confidence: 99%

Nonlinear optics in all-dielectric nanoantennas and metasurfaces: a review

2019

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“…The magnetooptical Kerr effect (MOKE) has potential application in ultrathin magnetic devices, e.g. films [8], multilayers [9], and magnetic superlattices [10], and, the surface magneto-optic Kerr effect (SMOKE) has remain a powerful tool for in situ characterization [11] . All the setups have shown bistability as their predominant characteristics which causes due to nonlinear susceptibility.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of Kerr nonlinear systems; analyzing non-classical dynamics

Agasti

2019

J. Phys. Commun.

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We simulate coherent driven free dissipative Kerr nonlinear system numerically using Euler's method by solving Heisenberg equation of motion and time evolving block decimation (TEBD) algorithm, and demonstrate how the numerical results are analogous to classical bistability. The comparison with analytics show that the TEBD numerics follow the quantum mechanical exact solution obtained by mapping the equation of motion of the density matrix of the system to a Fokker-Plank equation . Comparing between two different numerical techniques, we see that the semi-classical Euler's method gives the dynamics of the system field of one among two coherent branches, whereas TEBD numerics generate the superposition of both of them. Therefore, the time dynamics determined by TEBD numerical method undergoes through a non-classical state which is also shown by determining second order correlation function.

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“…Recently, it was demonstrated that a plasmonic cover of the transparent films significantly modifies their magneto-optical response, and the Faraday and transverse Kerr effects are resonantly enhanced by several orders of magnitude. − The concept of the magnetic field measurement based on the transverse Kerr effect in a magnetoplasmonic nanostructure with graphene layer was proposed theoretically . However, magnetoplasmonic magnetometry has not been demonstrated yet.…”

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confidence: 99%

Magnetoplasmonic Crystals for Highly Sensitive Magnetometry

et al. 2018

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Magnetometry and visualization of very small magnetic fields are vital for a large variety of the areas ranging from magnetocardiography and encephalography to nondistractive defectoscopy and ultra-low-frequency communications. It is very advantageous to measure magnetic fields using exchange-coupled spins in magnetically ordered media (flux-gate magnetometry).Here we introduce and demonstrate a novel concept of a roomtemperature magnetoplasmonic magnetic field sensor with high sensitivity and spatial resolution. It is based on the advanced fluxgate technique in which magnetization of the fully saturated magnetic film is rotated in the film plane and the monitored magnetic field is measured by detecting variation of transmittance through the sensing element: a magnetoplasmonic crystal. The experimental study revealed that such an approach allows one to reach the nT sensitivity level, which was limited by the noise of the laser. Moreover, we propose an approach to improve the sensitivity up to fT/Hz 1/2 and reach micrometer spatial resolution. Therefore, the demonstrated magnetoplasmonic magnetometry method is promising for mapping and visualization of ultrasmall magnetic fields.

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Enhancing the magneto-optical Kerr effect through the use of a plasmonic antenna

Cited by 24 publications

References 42 publications

Nonlinear optics in all-dielectric nanoantennas and metasurfaces: a review

Nonlinear optics in all-dielectric nanoantennas and metasurfaces: a review

Numerical simulation of Kerr nonlinear systems; analyzing non-classical dynamics

Magnetoplasmonic Crystals for Highly Sensitive Magnetometry

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