Enhanced transmission of microwave radiation in one-dimensional metallic gratings with subwavelength aperture

Akarca-Biyikli, S.; Bulu, İrfan; Özbay, Ekmel

doi:10.1063/1.1783013

Cited by 85 publications

(55 citation statements)

References 15 publications

(14 reference statements)

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“…There have been subsequent theoretical and experimental studies of this aperture -groove structure [10][11][12][13][14] , but there have been very few attempts to integrate this structure into an active device [15][16][17] .…”

Section: Introductionmentioning

confidence: 99%

Small-divergence semiconductor lasers by plasmonic collimation

et al. 2008

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Surface plasmons offer the exciting possibility of improving the functionality of optical devices through the subwavelength manipulation of light. We show that surface plasmons can be used to shape the beams of edge-emitting semiconductor lasers and greatly reduce their large intrinsic beam divergence. Using quantum cascade lasers as a model system, we show that by defining a metallic subwavelength slit and a grating on their facet, a small beam divergence in the laser polarization direction can be achieved. Divergence angles as small as 2.48 8 8 8 8 are obtained, representing a reduction in beam spread by a factor of 25 compared with the original 9.9-mm-wavelength laser used. Despite having a patterned facet, our collimated lasers do not suffer significant reductions in output power ( 100 mW at room temperature). Plasmonic collimation provides a means of efficiently coupling the output of a variety of lasers into optical fibres and waveguides, or to collimate them for applications such as free-space communications, ranging and metrology.

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Section: Introductionmentioning

confidence: 99%

Small-divergence semiconductor lasers by plasmonic collimation

et al. 2008

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“…Therefore, these systems can be used as filters by just tuning the periodicity [2]. A full analysis of the dependence of such resonances on other geometrical parameters is also available in the literature for systems like hole arrays [3] and apertures surrounded by corrugations [4,5,6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms for photon sorting based on slit–groove arrays

Villate-Guío

Martín‐Moreno

León-Pérez

2015

Photonics and Nanostructures - Fundamentals and Applications

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Abstract. Mechanisms for one-dimensional photon sorting are theoretically studied in the framework of a couple mode method. The considered system is a nanopatterned structure composed of two different pixels drilled on the surface of a thin gold layer. Each pixel consists of a slit-groove array designed to squeeze a large fraction of the incident light into the central slit. The Double-Pixel is optimized to resolve two different frequencies in the near infrared. This system shows a high transmission efficiency and a small crosstalk. Its response is found to strongly depend on the effective area shared by overlapping pixels. Three different regimes for the process of photon sorting are identified and the main physical trends underneath in such regimes are unveiled. Optimal efficiencies for the photon sorting are obtained for a moderate number of grooves that overlap with grooves of the neighbor pixel. Results could be applied to optical and infrared detectors.

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“…For instance, recent investigations of SPR in metallic structures showed enhanced transmission in the visible frequency range through nano-scale SSA fabricated in an Ag film patterned with periodic corrugations on the surface [13]. Implementing a similar concept at microwave frequencies is difficult because SPRs cannot be excited on the surface of common metals which can be considered as perfect conductors in this frequency range [14]. By placing split ring resonator (SRR) at the near field of a SSA in a copper plate, Aydin et al experimentally demonstrated impressive enhanced transmission around 3.7 GHz, in which no SPR effects was involved [15].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Enhanced Transmission Through a Single Subwavelength Aperture Based on Mie Resonance Single Particle

Kang¹,

Sadaune²,

Lippens³

2011

PIER

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Abstract-We numerically demonstrate that the transmission through a deep subwavelength (λ 0 /20) aperture in a metal plate could be greatly enhanced owing to the resonance effects of a high permittivity (κ) dielectric cube tightly coupled to the aperture. The transmission enhancement originates from the confinement and reradiation of the electromagnetic energy impinging onto the high κ cube which operates in the 1st Mie resonance mode, and behaves as an ultra-small magnetic dipole antenna. The complex permittivity of the cube governs the operating frequency and the enhancement in terms of bandwidth and transmissivity maximum. Additionally, based on the isotropic response of the high κ cube with dimensions comparable to the aperture size, the almost independence of the enhancement properties on the illumination polarization and incidence angle was assessed.

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Enhanced transmission of microwave radiation in one-dimensional metallic gratings with subwavelength aperture

Cited by 85 publications

References 15 publications

Small-divergence semiconductor lasers by plasmonic collimation

Small-divergence semiconductor lasers by plasmonic collimation

Mechanisms for photon sorting based on slit–groove arrays

Numerical Analysis of Enhanced Transmission Through a Single Subwavelength Aperture Based on Mie Resonance Single Particle

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