Plasmon Scattering from Single Subwavelength Holes

Rotenberg, Nir; Spasenović, Marko; Krijger, T. L.; Feber, B. le; Abajo, F. Javier García de; Kuipers, L.

doi:10.1103/physrevlett.108.127402

Cited by 78 publications

(94 citation statements)

References 18 publications

(20 reference statements)

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“…We note that our results add a new mechanism of asymmetric SPP emission to those already reported in the literature, which arise upon illumination with elliptically polarized light [28] or are a result of SPP scattering from defects due to an interference between the electric and magnetic response of the material [29].…”

Section: Anisotropy -Full-wave Simulationssupporting

confidence: 76%

Anisotropic excitation of surface plasmon polaritons on a metal film by a scattering-type scanning near-field microscope with a non-rotationally-symmetric probe tip

et al. 2017

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Abstract:We investigated the excitation of surface plasmon polaritons on gold films with the metallized probe tip of a scattering-type scanning near-field optical microscope (s-SNOM). The emission of the polaritons from the tip, illuminated by near-infrared laser radiation, was found to be anisotropic and not circularly symmetric as expected on the basis of literature data. We furthermore identified an additional excitation channel via light that was reflected off the tip and excited the plasmon polaritons at the edge of the metal film. Our results, while obtained for a non-rotationally-symmetric type of probe tip and thus specific for this situation, indicate that when an s-SNOM is employed for the investigation of plasmonic structures, the unintentional excitation of surface waves and anisotropic surface wave propagation must be considered in order to correctly interpret the signatures of plasmon polariton generation and propagation.

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Section: Anisotropy -Full-wave Simulationssupporting

confidence: 76%

Anisotropic excitation of surface plasmon polaritons on a metal film by a scattering-type scanning near-field microscope with a non-rotationally-symmetric probe tip

et al. 2017

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“…The proposed a − b cos(φ) dependence of the scattering rate is based on the SP-scattering of a single small cylindrical hole. This scattering process can be described by an effective electric p and magnetic m dipole [8]. In this model the incident SP-wave excites with these dipoles, which then radiate partially to SP-waves again.…”

Section: Discussionmentioning

confidence: 99%

“…Such materials can be designed and engineered despite the fact that the interaction with a single subwavelength circular nanohole in a gold film cannot be described accurately using simple theory. Near-field experiments on a single isolated hole provided more insight in such SP-hole scattering process [8], but leafs questions about the interaction between holes and the size variations that occur in arrays unaddressed. In this paper we study 10 4 holes simultaneously and retrieve more accurate information on the scattering process of individual holes than what is possible with single hole experiments.…”

Section: Introductionmentioning

confidence: 99%

Surface plasmon dispersion in hexagonal, honeycomb and kagome plasmonic crystals

2016

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We present a systematic experimental study on the optical properties of plasmonic crystals (PlC) with hexagonal symmetry. We compare the dispersion and avoided crossings of surface plasmon modes around the Γ-point of Au-metal hole arrays with a hexagonal, honeycomb and kagome lattice. Symmetry arguments and group theory are used to label the six modes and understand their radiative and dispersive properties. Plasmon-plasmon interaction are accurately described by a coupled mode model, that contains effective scattering amplitudes of surface plasmons on a lattice of air holes under 60• , 120• , and 180• . We determine these rates in the experiment and find that they are dominated by the hole-density and not on the complexity of the unit-cell. Our analysis shows that the observed angle-dependent scattering can be explained by a single-hole model based on electric and magnetic dipoles.

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“…Both the amplitude and phase of the near-field can be mapped, with phase-sensitive c-SNOM measurements allowing detection of the mode properties of light as it propagates through nanoscale waveguides composed of nanoparticles or nanowires [28,29]. With these capabilities, construction of electric and magnetic vector field maps in the near-field of exotic nanostructures, nanoparticles and nano-antennas has been accomplished [8,30,31].…”

Section: Imaging Electrical and Magnetic Near-fieldsmentioning

confidence: 99%

“…Direct mapping of electric fields near sub wavelength holes acting as nanoantennas has been demonstrated using tips with 30 nm circular apertures [30,31]. Optical mapping of magnetic fields is more challenging, and was first demonstrated using c-SNOM with a slit etched into the tip of an aperture probe [32].…”

Section: Imaging Electrical and Magnetic Near-fieldsmentioning

confidence: 99%

A Review of Three-Dimensional Scanning Near-Field Optical Microscopy (3D-SNOM) and Its Applications in Nanoscale Light Management

2017

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Abstract:In this article, we present an overview of aperture and apertureless type scanning near-field optical microscopy (SNOM) techniques that have been developed, with a focus on three-dimensional (3D) SNOM methods. 3D SNOM has been undertaken to image the local distribution (within~100 nm of the surface) of the electromagnetic radiation scattered by random and deterministic arrays of metal nanostructures or photonic crystal waveguides. Individual metal nanoparticles and metal nanoparticle arrays exhibit unique effects under light illumination, including plasmon resonance and waveguiding properties, which can be directly investigated using 3D-SNOM. In the second part of this article, we will review a few applications in which 3D-SNOM has proven to be useful for designing and understanding specific nano-optoelectronic structures. Examples include the analysis of the nano-optical response phonetic crystal waveguides, aperture antennae and metal nanoparticle arrays, as well as the design of plasmonic solar cells incorporating random arrays of copper nanoparticles as an optical absorption enhancement layer, and the use of 3D-SNOM to probe multiple components of the electric and magnetic near-fields without requiring specially designed probe tips. A common denominator of these examples is the added value provided by 3D-SNOM in predicting the properties-performance relationship of nanostructured systems.

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Plasmon Scattering from Single Subwavelength Holes

Cited by 78 publications

References 18 publications

Anisotropic excitation of surface plasmon polaritons on a metal film by a scattering-type scanning near-field microscope with a non-rotationally-symmetric probe tip

Anisotropic excitation of surface plasmon polaritons on a metal film by a scattering-type scanning near-field microscope with a non-rotationally-symmetric probe tip

Surface plasmon dispersion in hexagonal, honeycomb and kagome plasmonic crystals

A Review of Three-Dimensional Scanning Near-Field Optical Microscopy (3D-SNOM) and Its Applications in Nanoscale Light Management

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