Longitudinal Magneto-optical Kerr Effect in Insulator/Metal/Insulator Grating Structure

Shnan, Nizar Salim; Sadeghi, Seyed M.; Farzaneh, Mohsen; Hamidi, Seyedeh Mehri; Belotelov, V. I.; Chernov, A. I.

doi:10.1007/s10948-022-06369-4

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…The interaction of light and magnetic material structures allows manipulation by an external magnetic field [1][2][3][4], referred to as the magneto-optical effect, which has been widely investigated due to its superior performance in, but not limited to, biological sensing [5,6], optoisolation [7], and data * Authors to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Enhancement in the magneto-optical effect induced by combining multiple modes in a gold film–supported hybrid periodic gold/magnetic nanorod array

Du,

Zhang,

Liu

et al. 2024

J. Opt.

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In this study, the possibility of enhanced transverse magneto-optical Kerr effect (TMOKE) and performance monitoring of a hybrid nanostructure developed by sandwiching a ferromagnetic film within a gold layer and square periodic nanorod arrays, is theoretically investigated. Based on the findings, the TMOKE signal can be enhanced approximately 33 times when compared to the referenced planar film, which is elucidated by the hybrid of modes in the magnetic film region. In addition, a high level of environmental sensor performance is simultaneously achieved by recording the wavelength resonance positions with the variation of refractive index, which is compatible with gaseous medium from 1 to 1.01, indicating that the structure of the proposal will have applications in environmental monitoring.

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Section: Introductionmentioning

confidence: 99%

Enhancement in the magneto-optical effect induced by combining multiple modes in a gold film–supported hybrid periodic gold/magnetic nanorod array

Du,

Zhang,

Liu

et al. 2024

J. Opt.

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Magneto-optical engineering by plasmonic and dielectric metasurfaces in a CoFeB perforated microstructure

Shnan¹,

Roostaei²,

Hamidi³

2023

J. Opt. Soc. Am. B

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We have investigated theoretically and experimentally the effect of plasmonic and all-dielectric metasurfaces on the magneto-optical response of the 2D periodic structure. For this purpose, we fabricate polydimethylsiloxane-based 2D microstructures. So, we coated them with a gold layer and a TiO2 dielectric layer as plasmonic and dielectric metasurfaces, respectively, CoFeB as the prominent magneto-optical thin films. We record the spectral magneto-optical longitudinal Kerr effect under 40 mT, and the spectrometer’s response in all visible regions. Our results show that the electric and magnetic dipole moments enhance the magneto-optical response by factors of one and two in two closer channels in 650 and 660 nm in an all-dielectric structure, respectively. The plasmonic hot spot-based magneto-optical enhancement is also confirmed in two other media with an enhancement factor of two.

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All-optical NOT, OR, and XOR Logic Gates Using Silicon Slot Waveguides

Korkmaz

2024

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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All-optical NOT, OR, and Exclusive OR(XOR) logic gates using silicon slot waveguides are proposed and numerically analyzed in this work. The structure has a silicon plate with etched regions such as two input waveguides, one output waveguide, and two square cavity resonators. The optical spectra of the designed structures are attained with the finite-difference time-domain (FDTD) method. The optical logic gate features of the structure are achieved by applying optical signals with 0^0 or 180^0 phase difference from the input ports. Basic parameters such as transmission spectrum (T), modulation depth (MD), and contrast ratio (CR) are calculated to show the optical performances of the logic gates. The threshold transmission is 1.7% to define the status of the output ports as ON or OFF. The maximum transmission, modulation depth, and contrast ratio are 149%, 97%, and 15.36 dB, respectively.

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Longitudinal Magneto-optical Kerr Effect in Insulator/Metal/Insulator Grating Structure

Cited by 3 publications

References 21 publications

Enhancement in the magneto-optical effect induced by combining multiple modes in a gold film–supported hybrid periodic gold/magnetic nanorod array

Enhancement in the magneto-optical effect induced by combining multiple modes in a gold film–supported hybrid periodic gold/magnetic nanorod array

Magneto-optical engineering by plasmonic and dielectric metasurfaces in a CoFeB perforated microstructure

All-optical NOT, OR, and XOR Logic Gates Using Silicon Slot Waveguides

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