Plasmonic Nickel Nanoantennas

Chen, Jianing; Albella, Pablo; Pirzadeh, Zhaleh; Alonso‐González, Pablo; Huth, Florian; Bonetti, Stefano; Bonanni, Valentina; Åkerman, Johan; Nogués, J.; Vavassori, P.; Dmitriev, Alexandre; Aizpurua, Javier; Hillenbrand, Rainer

doi:10.1002/smll.201100640

Cited by 187 publications

(190 citation statements)

References 37 publications

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“…Hence, it is difficult to achieve ferromagnetic and plasmonic behaviors in the same material. Only recently, nanostructures of Ni [14][15][16][17][18][19][20] Ni/Co [21] and permalloy antidots [22] have been reported to exhibit surface plasmons in combination with their well-known ferromagnetic character at room temperature. However, the intensity of the plasmonic resonance in these type of materials is fairly weaker than for noble metals as Au or Ag where the electromagnetic field can be increased locally up to 80 times upon excitation of surface plasmons [23].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic nanodevice with magnetic funcionalities: fabrication and characterization

Gálvez

Valle

Gómez

et al. 2016

Opt. Mater. Express

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Abstract:We have designed and fabricated a nanodevice exhibiting simultaneously ferromagnetic properties of nanostructures with plasmonic properties of continuous films. Our device consists in an array of nanomagnets on top of a continuous plasmonic film. The patterned nanomagnets magnetic state is single domain and well-defined shape anisotropy. Despite the presence of the patterned media on top of the Au film, the system exhibit surface plasmon resonance characteristic of a continuous film, i. e., propagating surface plasmonpolaritons.

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Section: Introductionmentioning

confidence: 99%

Plasmonic nanodevice with magnetic funcionalities: fabrication and characterization

Gálvez

Valle

Gómez

et al. 2016

Opt. Mater. Express

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“…7,8 Furthermore, the magneto-optical activity of Ni-based nano-patterns can be enhanced by the presence of surface plasmon polaritons (SPPs). [9][10][11][12][13] The magnetic field can provide the means for control of SPPs, as it has been predicted for noble metals, 14 and explored experimentally in hybrid structures. 2,5,6 Early studies on this effect were targeted towards semiconductor-based SPPs (Ref.…”

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confidence: 98%

Influence of the magnetic field on the plasmonic properties of transparent Ni anti-dot arrays

et al. 2012

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Extraordinary optical transmission is observed due to the excitation of surface plasmon polaritons in 2-dimensional hexagonal anti-dot patterns of pure Ni thin films, grown on sapphire substrates. A strong enhancement of the polar Kerr rotation is recorded at the surface plasmon related transmission maximum. Angular resolved reflectivity measurements under an applied field reveal an enhancement and a shift of the normalized reflectivity difference upon reversal of the magnetic saturation (transverse magneto-optical Kerr effect-TMOKE). The change of the TMOKE signal clearly shows the magnetic field modulation of the dispersion relation of SPPs launched in a 2D patterned ferromagnetic Ni film. Magneto-plasmonics offer unique possibilities to manipulate light by the use of external magnetic fields. [1][2][3][4] The prevailing choice of materials for fabrication of magnetoplasmonic structures has been combined structures of noble and magnetic metals/dielectrics, such as Au and Co/Iron garnet. 1,5,6 The basic idea behind this choice is the combination of the large plasmon activity of noble metals with the magnetic functionality provided by the additional materials. Another reason for the use of noble metals is the excellent resistance to oxidation, which is required to obtain durable patterned thin films. Ni is an interesting candidate in this context as it forms a thin and self-passivating oxide layer (approximately 1 nm). 7,8 Furthermore, the magneto-optical activity of Ni-based nano-patterns can be enhanced by the presence of surface plasmon polaritons (SPPs). [9][10][11][12][13] The magnetic field can provide the means for control of SPPs, as it has been predicted for noble metals, 14 and explored experimentally in hybrid structures. 2,5,6 Early studies on this effect were targeted towards semiconductor-based SPPs (Ref. 15) but not in metallic systems, where high magnetic fields are required. 16 In pure magnetic materials, the need for high fields is not present as the magneto-optical effects are sufficiently strong.In this Letter, we discuss the influence of an external magnetic field on the SPPs for the case of a pure magnetic metal, such as Ni, patterned in two-dimensions (2D) on a transparent substrate. We examine to what extent the ferromagnetic Ni can be used as a host material for SPPs. We show that the magnetic field induces a modulation of the dispersion of SPPs excitation in Ni.A Ni anti-dot sample was prepared on a double side polished Al 2 O 3 ½11 20 substrate. The patterning was accomplished by the use of self-organization of colloidal polystyrene beads as shadow masks. 9 A 30 nm thick Ni film was deposited on the masked sapphire substrate, using electron-beam evaporation. A snapshot of the procedure is illustrated in Fig. 1, where both the shadow mask and the resulting holes are clearly seen. This process resulted in a well defined Ni layer, decorated by holes of a diameter d ¼ 300 nm, spaced on an hexagonal lattice of periodicity of a ¼ 450 nm. The ratio of the radius to pitch size was determined t...

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“…We also observe spectral line-widths and optical cross-sections, which are strongly dependent on material specifi c damping processes. A number of recent studies discuss plasmonic excitations in " unconventional " plasmonic metals in more detail, e.g., Pt and Pd [18, 21 -23] , Cu [24 -26] , Al [19,27,28] , Sn [20] , Ni [29] or several of the metals [30] . Moreover, localized surface plasmons have also been demonstrated in materials like VO 2 [31] or Graphene [32] .…”

Section: Direct Nanoplasmonic Sensingmentioning

confidence: 99%

Nanoplasmonic sensing for nanomaterials science

Larsson¹,

Syrenova

Langhammer

2012

Nanophotonics

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Nanoplasmonic sensing has over the last two decades emerged as and diversifi ed into a very promising experimental platform technology for studies of biomolecular interactions and for biomolecule detection (biosensors). Inspired by this success, in more recent years, nanoplasmonic sensing strategies have been adapted and tailored successfully for probing functional nanomaterials and catalysts in situ and in real time. An increasing number of these studies focus on using the localized surface plasmon resonance (LSPR) as an experimental tool to study a process of interest in a nanomaterial, with a materials science focus. The key assets of nanoplasmonic sensing in this area are its remote readout, non-invasive nature, single particle experiment capability, ease of use and, maybe most importantly, unmatched fl exibility in terms of compatibility with all material types (particles and thin/thick layers, conductive or insulating) are identifi ed. In a direct nanoplasmonic sensing experiment the plasmonic nanoparticles are active and simultaneously constitute the sensor and the studied nano-entity. In an indirect nanoplasmonic sensing experiment the plasmonic nanoparticles are inert and adjacent to the material of interest to probe a process occurring in/on this material. In this review we defi ne and discuss these two generic experimental strategies and summarize the growing applications of nanoplasmonic sensors as experimental tools to address materials science-related questions.

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Plasmonic Nickel Nanoantennas

Cited by 187 publications

References 37 publications

Plasmonic nanodevice with magnetic funcionalities: fabrication and characterization

Plasmonic nanodevice with magnetic funcionalities: fabrication and characterization

Influence of the magnetic field on the plasmonic properties of transparent Ni anti-dot arrays

Nanoplasmonic sensing for nanomaterials science

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