Rayleigh-Wood anomaly approximation with FDTD simulation of plasmonic gold nanohole array for determination of optimum extraordinary optical transmission characteristics

Tavakoli, Mehdi; Jalili, Yousef Seyed; Elahi, Seyed Mohammad

doi:10.1016/j.spmi.2019.04.035

Cited by 12 publications

(4 citation statements)

References 60 publications

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“…The EOT spectrum has a characteristic asymmetric Fano‐type resonance (arising from a periodic perturbation, here a square lattice), along with evidence of Wood–Rayleigh anomalies at wavelengths just below the resonant wavelength. [ 1,13 ] The E‐field plots show clearly the generation of high fields at the hole edges at the peak transmission wavelength.…”

Section: Design and Fabrication Of Eot Arraysmentioning

confidence: 99%

Filtering and Modulation from the Infrared to the Terahertz using Phase‐Change Extraordinary Optical Transmission Metasurfaces

Humphreys

Bertolotti

Galarreta

et al. 2023

Physica Rapid Research Ltrs

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Periodic arrays of sub‐wavelength‐scale holes in plasmonic metal films are known to provide resonant transmission peaks via the extraordinary optical transmission (EOT) effect. Active control of the spectral position of such transmission peaks can be obtained by adding a layer of phase‐change material (PCM) to the EOT device. Switching the PCM layer between its amorphous and crystalline states can shift the spectral position of the resonance, enabling potential applications in the fields of active filtering and sensing (e.g., multispectral sensing), and for signal modulation. Here, the design, fabrication, and characterization of active EOT devices are targeted at various important regions of the optical spectrum.

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Section: Design and Fabrication Of Eot Arraysmentioning

confidence: 99%

Filtering and Modulation from the Infrared to the Terahertz using Phase‐Change Extraordinary Optical Transmission Metasurfaces

Humphreys

Bertolotti

Galarreta

et al. 2023

Physica Rapid Research Ltrs

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“…The corresponding transmission spectrum (red curve) has two resonance peaks as shown in Figure 2C. The first resonance peak at $540 nm is due to the excitation of first-order surface plasmon polariton (SPP) on the glass-Ag interface (Tavakoli et al, 2019). The coupling between the SPP and the slot cavity results in a higher transmission for the horizontal (H) polarization.…”

Section: Metasurface Design and Characterizationmentioning

confidence: 99%

Polarization coincidence images from metasurfaces with HOM-type interference

Yung

Liang

et al. 2022

iScience

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“…Generation of nanosized structures is technologically important, and the controlled formation of structures in solids on a nanometer scale is critical to modern technology [1][2][3]. Such structures may have properties different from those of the bulk materials.…”

Section: Introductionmentioning

confidence: 99%

Self-Organized Nanostructures Generated on Metal Surfaces under Electron Irradiation

Niwase¹

2021

QuBS

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Irradiation of high-energy electrons can produce surface vacancies on the exit surface of thin foils by the sputtering of atoms. Although the sputtering randomly occurs in the area irradiated with an intense electron beam of several hundred nanometers in diameter, characteristic topographic features can appear under irradiation. This paper reviews a novel phenomenon on a self-organization of nanogrooves and nanoholes generated on the exit surface of thin metal foils irradiated with high doses of 360–1250 keV electrons. The phenomenon was discovered firstly for gold irradiated at temperatures about 100 K, which shows the formation of grooves and holes with widths between 1 and 2 nm. Irradiation along [001] produces grooves extending along [100] and [010], irradiation along [011] gives grooves along [100], whereas no clear grooves have been observed for [111] irradiations. By contrast, nanoholes, which may reach depths exceeding 20 nm, develop mainly along the beam direction. The formation of the nanostructures depends on the irradiation temperatures, exhibiting an existence of a critical temperature at about 240 K, above which the width significantly increases, and the density decreases. Nanostructures formed for silver, copper, nickel, and iron were also investigated. The self-organized process was discussed in terms of irradiation-induced effects.

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Rayleigh-Wood anomaly approximation with FDTD simulation of plasmonic gold nanohole array for determination of optimum extraordinary optical transmission characteristics

Cited by 12 publications

References 60 publications

Filtering and Modulation from the Infrared to the Terahertz using Phase‐Change Extraordinary Optical Transmission Metasurfaces

Filtering and Modulation from the Infrared to the Terahertz using Phase‐Change Extraordinary Optical Transmission Metasurfaces

Polarization coincidence images from metasurfaces with HOM-type interference

Self-Organized Nanostructures Generated on Metal Surfaces under Electron Irradiation

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