Light transmission by subwavelength annular aperture arrays in metallic films

Baida, Fadi; Labeke, D. van

doi:10.1016/s0030-4018(02)01690-5

Cited by 180 publications

(126 citation statements)

References 15 publications

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“…Several works have studied the importance of thin metal plates periodically structured by subwavelength holes which present special or enhanced transmission of resonance excitation (plasmonic modes or guided wave sub-length cavities) [1,2]. For optical frequencies (visible/near infrared), the main limiting factor of such structures remains the absorption of metal that dramatically reduces the light transmission.…”

Section: Introductionmentioning

confidence: 99%

Microrobotic Station for Nano-Optical Component Assembly

Komati

Clevy

Courjal

et al. 2015

MATEC Web of Conferences

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Abstract. Compact photonic structures have strategic importance in several fields. In order to fabricate more complex structures with optimized optical function, robotic nano-assembly is a promising solution because it enables to integrate several types of materials from different fabrication processes into the same structure. This paper presents a microrobotic station which is designed for the assembly of nano-optical components. The robotic station has 8-DOF for positioning and 4-DOF microgripper with integrated force sensors to perform dexterous and accurate manipulation of components by considering both position and contact force to achieve precise alignment and parallelism of structures.

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Section: Introductionmentioning

confidence: 99%

Microrobotic Station for Nano-Optical Component Assembly

Komati

Clevy

Courjal

et al. 2015

MATEC Web of Conferences

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“…As in the MM approach, the subwavelength cavities provide the resonances, giving a strong concentration of EM energy which here is absorbed by the thin dielectric slab on top. Although annularcavity arrays have previously been studied with regards to their transmission characteristics [7][8][9][10]19], no studies have been performed exploring their use as building blocks for absorption enhancement. The fundamental mode (TEM mode) of the annular cavities has no cutoff frequency, a feature that is here employed to obtain extraordinary absorption at low frequencies.…”

Section: Introductionmentioning

confidence: 99%

Extraordinary absorption by a thin dielectric slab backed with a metasurface

et al. 2014

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The absorption of electromagnetic waves by a thin dielectric slab backed by a metasurface has been comprehensively studied and discussed at microwave frequencies. The metasurface consists of a metallic plate decorated with a periodic distribution of coaxial-or annular-type cavities. Analytical expressions for the absorbance have been obtained by using a mode-matching method. For P -polarized waves it is predicted that a low-frequency peak of perfect absorption is possible by properly choosing the lossy component of the permittivity of the dielectric slab, with the position of this peak being easily tunable by the cavity length. It is also shown that non-Bravais lattices, containing several cavities in the unit cell, and the excitation of guided waves by the periodic array of resonators are complementary absorption mechanisms in the studied structures.

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“…Soon after, Baida et al proposed a similar idea, stating that it was possible to optimize the transmission enhancement and angular confinement using a subwavelength circular coaxial aperture with a surrounding array of grooves [14,15].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic structures with extraordinary transmission and highly directional beaming properties

Çağlayan

Bulu

Özbay

2006

Micro & Optical Tech Letters

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We studied the grating-coupling phenomena between surface plasmons and electromagnetic waves in the microwave spectrum. We first present the experimental and theoretical results of an enhanced microwave transmission though a subwavelength circular annular aperture with and without metallic gratings. We demonstrate that a 145-fold enhancement factor could be obtained with a subwavelength circular annular aperture that was surrounded by periodic metallic gratings. This was assisted by the guided mode of the coaxial waveguide and by coupling to the surface plasmons. We present the angular transmission distributions from circular annular apertures, and circular annular apertures surrounded by concentric periodic grooves. At the surface mode resonance frequency, the transmitted electromagnetic waves from the subwavelength circular annular aperture surrounded by concentric periodic grooves have a strong angular confinement with an angular divergence of ±3°. We demonstrate that only the output surface is responsible for the beaming effect. Furthermore, we present the field distributions and showed that there is no beaming effect at the off-resonance frequency. © 2006 Wiley Periodicals, Inc

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Light transmission by subwavelength annular aperture arrays in metallic films

Cited by 180 publications

References 15 publications

Microrobotic Station for Nano-Optical Component Assembly

Microrobotic Station for Nano-Optical Component Assembly

Extraordinary absorption by a thin dielectric slab backed with a metasurface

Plasmonic structures with extraordinary transmission and highly directional beaming properties

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