Interference of surface plasmon polaritons excited at hole pairs in thin gold films

Häfele, V.; León-Pérez, Fernando de; Hohenau, Andreas; Martín‐Moreno, Luis; Plank, Harald; Krenn, Joachim R.; Leitner, A.

doi:10.1063/1.4767523

Cited by 15 publications

(14 citation statements)

References 18 publications

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“…In particular, an "all SPP" version has been demonstrated where the "holes" are replaced by two metal stripe waveguides [15]. Hole pairs have also been optically excited simultaneously [17,18], as well as individually [19,20], demonstrating the existence of plasmon propagation between slits in such experiments [18,19,20,21]. The light scattered from the ends of a locally excited nanowire may also be considered a type of Young's experiment [28,29].…”

Section: Introductionmentioning

confidence: 99%

Plasmon scattering from holes: from single hole scattering to Young’s experiment

Wang¹,

Boer-Duchemin²,

Comtet³

et al. 2014

Nanotechnology

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Abstract. In this article, the scattering of surface plasmon polaritons (SPPs) into photons at holes is investigated. A local, electrically excited source of SPPs using a scanning tunnelling microscope (STM) produces an outgoing circular plasmon wave on a thick (200 nm) gold film on glass containing holes of 250, 500 and 1000 nm diameter. Fourier plane images of the photons from hole-scattered plasmons show that the larger the hole diameter, the more directional the scattered radiation. These results are confirmed by a model where the hole is considered as a distribution of horizontal dipoles whose relative amplitudes, directions, and phases depend linearly on the local SPP electric field. An SPP-Young's experiment is also performed, where the STM-excited SPP-wave is incident on a pair of 1 µm diameter holes in the thick gold film. The visibility of the resulting fringes in the Fourier plane is analyzed to show that the polarization of the electric field is maintained when SPPs scatter into photons. From this SPP-Young's experiment, an upper bound of ≈ 200 nm for the radius of this STM-excited source of surface plasmon polaritons is determined.

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Section: Introductionmentioning

confidence: 99%

Plasmon scattering from holes: from single hole scattering to Young’s experiment

Wang¹,

Boer-Duchemin²,

Comtet³

et al. 2014

Nanotechnology

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“…Since the plasmonic properties are highly related to the metal nanostructures' composition, geometry, and dielectric function, 14 the field enhancement has been studied in different plasmonic systems, such as individual particles, 15 dimers, [16][17][18][19][20] trimers, 21 and films. 22 Because of the good application prospect, the particle-film system has aroused the interest of researchers from all over the world. [23][24][25] Even though a lot of particle-film system configurations have been studied, the enhancement in those works was mainly attributed to the coupling between particles, particle tips or between the particle and the film using an out-of-plane polarization.…”

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confidence: 99%

Electromagnetic field redistribution in hybridized plasmonic particle-film system

Fang¹,

Huang²

2013

Appl. Phys. Lett.

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“…3 (b). In order to explain the optical response of the Double-Pixel, it is compared with two simpler systems: a Double-Slit (DS) for which all grooves are removed and only a single slit remains in each pixel (see [6,32,33,34,35,36,37,38] for a full discussion of its optical response), and the Pixel-Slit (PS) structure, where the grooves of one pixel are removed leaving only a single slit, while the other pixel is not changed. A schematic representation of the three systems is given in the inset of Fig.…”

Section: Dependence On the Slit-slit Distancementioning

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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Interference of surface plasmon polaritons excited at hole pairs in thin gold films

Cited by 15 publications

References 18 publications

Plasmon scattering from holes: from single hole scattering to Young’s experiment

Plasmon scattering from holes: from single hole scattering to Young’s experiment

Electromagnetic field redistribution in hybridized plasmonic particle-film system

Mechanisms for photon sorting based on slit–groove arrays

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