Interaction of light and surface plasmon polaritons in Ag Islands studied by nonlinear photoemission microscopy

Buckanie, Niemma M.; Kirschbaum, Pierre; Sindermann, S.; Heringdorf, F.‐J. Meyer zu

doi:10.1016/j.ultramic.2013.03.007

Cited by 49 publications

(45 citation statements)

References 25 publications

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“…Therefore, PEEM is an ideal tool to study the polarization dependence of the near-field enhancement of individual antennas. 21,22 Normalincidence photoemission microscopy, avoiding the strong yield enhancement for the normal component of the electrical field vector, has recently been pioneered by Kahl et al 23 Here, we show that non-avoidable heterogeneities of the lithographically fabricated antenna structures preserve a large circular polarization in the region of maximum nearfield enhancement confirming a large figure-of-merit for angular momentum confinement.…”

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confidence: 63%

Robustness of plasmonic angular momentum confinement in cross resonant optical antennas

Klaer

Razinskas

Lehr

et al. 2015

Applied Physics Letters

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Published by the AIP Publishing Articles you may be interested inOptical spin-to-orbital angular momentum conversion in ultra-thin metasurfaces with arbitrary topological charges Novel high-throughput and maskless photolithography to fabricate plasmonic molecules J. Vac. Sci. Technol. B 32, 020604 (2014); 10.1116/1.4865999 Engineering the plasmonic optical properties of cubic silver nanostructures based on Fano resonance Optical bistability based on Bragg grating resonators in metal-insulator-metal plasmonic waveguides AIP Advances 3, 012106 (2013);

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supporting

confidence: 63%

Robustness of plasmonic angular momentum confinement in cross resonant optical antennas

Klaer

Razinskas

Lehr

et al. 2015

Applied Physics Letters

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“…31−33 However, as light is incident at the curved boundary of the nanohole and vacuum, wave vectors of the beat pattern, following symmetry considerations, are always perpendicular to the line tangent to the curved surface. 34 As such, instead of the grating fringes of a trench, 13 we observe elongated ringlike beating patterns. The simple vectorial diagram shown in Figure 2b, while rigorously justified for linear coupling structures, 34 is only approximate in describing curved coupling structures, including holes and arc-shaped trenches.…”

Section: ■ Methodsmentioning

confidence: 82%

Nonlinear Photoemission Electron Micrographs of Plasmonic Nanoholes in Gold Thin Films

et al. 2014

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Nonlinear photoemission electron microscopy of isolated nanoholes in gold thin films maps propagating surface plasmon polaritons (SPPs) launched from the lithographically patterned plasmonic structures. A damped elongated ringlike photoemission beat pattern is observed from the nanoholes, following low angle of incidence irradiation of these structures with sub-15 fs 780 nm laser pulses. A notable agreement between finite difference time domain simulations and experiment corroborates our assignment of the observed photoemission patterns to SPPs launched from isolated nanoholes and probed through nonlinear photoemission. We also demonstrate how the efficiency of coupling light waves into isolated plasmonic holes can be tuned by varying hole diameter. In this regard, a simple intuitive geometrical model, which accounts for the observed and simulated diameter dependent plasmonic response, is proposed. Overall, this study paves the way for designing nanohole assemblies where optical coupling and subsequent plasmon propagation can be rationally controlled through 2D SPP interferometry. ■ INTRODUCTIONTrapping light waves at a metal−dielectric interface 1,2 in the form of surface plasmon polaritons (SPPs) is the concept behind several emerging nanotechnologies. These include the fabrication of optical devices 3 and optoelectronic circuits, 4 as well as the development of ultrasensitive plasmonic detectors for chemical and biological sensing applications, 5,6 all operating well beyond the diffraction limit. Over the past decade, several techniques have been devoted to imaging SPPs, including dark field scattering microscopy, 7 fluorescence microspectroscopy, 8−10 coherent anti-Stokes Raman scattering microspectroscopy, 11 near-field scanning optical microscopy (NSOM), 12 and nonlinear photoemission electron microscopy. 13,14 Among the various tools of trade, PEEM has the distinct advantage of directly mapping SPPs at nanometer resolution through photoemission, without the need for molecular reporters or a scanning probe tip. Herein, we employ multiphoton PEEM to probe propagating SPPs launched from isolated plasmonic holes lithographically etched in a gold thin film.That light incident on an otherwise nominally flat metal surface can be coupled to a SPP mode through subwavelength structures is not a new concept. The most commonly used plasmonic couplers are ridges 15 and slits, 16,17 engineered to reflect and refract SPPs at metal/dielectric interfaces. 18−20 Nanohole arrays have also been previously exploited to achieve extraordinary optical transmission, 21,22 high brightness photoemission, 23 and enhanced energy conversion when coupled to photovoltaic devices. 24,25 Nonetheless, few works 12,26 have been devoted to understanding the operative physics that governs light coupling into and SPP generation from individual nanoholes, fundamental geometric coupling structures. Here, we report on the generation and manipulation of SPP fields through isolated nanoholes etched in thin films of gold. We take the first step towar...

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“…In addition, the Moiré strips (small wave oscillation in Figure b) can be clearly observed in all near‐field images because of the interference between the leakage wave on the air/Al 2 O 3 interface and the SPPs on the interface of Al 2 O 3 /Ag. The period of the Moiré strip ( T M ) can be expressed with

{normalT}_{normalM} = λ_{0} λ_{SPP} / \sqrt{λ_{0}^{2} + λ_{SPP}^{2} - 2 λ_{0} λ_{SPP}}

where the λ 0 is the wavelength of the leakage waves on the air/Al 2 O 3 interface, and the λ SPP is the wavelength of SPPs on the interface of Al 2 O 3 /Ag. The λ SPP is presented with

λ_{SPP} = 2 π {/k}_{sp}

{normalk}_{sp} = \frac{ω}{normalc} \sqrt{\frac{ε_{normald} ε_{normalm}}{ε_{normald} + ε_{normalm}}}

where ω is the frequency, and ε d and ε m are the permittivity of medium and metal.…”

Section: Resultsmentioning

confidence: 99%

Controlled Multichannel Surface Plasmon Polaritons Transmission on Atomic Smooth Silver Triangular Waveguide

Zhang

Wang

Chen

et al. 2019

Advanced Optical Materials

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applications of photonic integrated plasmonic devices are considered as one of the most promising solutions. [2] Surface plasmon polaritons (SPPs) based waveguides have attracted much of the attention because of the stronger confinement of the electromagnetic fields compared with the dielectric based devices. [3] SPPs are polaritons coupling light and collective coherent oscillations of free electrons which propagate on the interface between metal and dielectric. [4] SPPs not only confine the energy in localized region [5] but also exhibit many optical properties like interference [6] and diffraction. [7] The intrinsic features of exciting photons such as the spin [8] and entanglement [9] can be effectively maintained by SPPs. The SPP waveguides are considered as an optimal candidate for optical information transport. [10] The SPPs waveguides like nanowires, [11] parallel strips, [12] nanogrooves, [13] and nanowedges [14] have been demonstrated to guide different plasmon modes [15] for potential photonic devices applications. [16] Up to now, two kinds of SPPs waveguides have been widely used. One is the chemically synthesized singlecrystalline nanowire which is suited for long-range signal transmission. [17] The other one is lithography-based waveguide arrays which are uniformly distributed, well-patterned, and suitable for integration purposes with wide-range signal manipulation. [18] Although the atomic smooth surface in the chemically synthesized nanowire leads to a low energy loss, it is still difficult to control the morphology unification and the position of the synthesized waveguides compared with the lithography-based waveguide arrays. [19] For lithographybased waveguide arrays, the significant energy dissipation during the SPPs propagation resulting from relative high surface roughness limits its application in long-range transmission. [20] These challenges of two kinds of waveguides highly limit the performance of the wide-range integrated waveguide device applications. Therefore, SPPs waveguide with ultrasmooth surface and tunable multipropagation channel is urgently needed for developing plasmonic devices. The chemically synthesized monocrystalline Ag/Au plates have shown The application of plasmonic devices is considered as one promising solution for overcoming the limitation of traditional electronic devices. The critical challenges of plasmonic transmission devices include the control accuracy of large-scale signal transmission and energy loss reduction. The 2D plasmonic waveguide provides a good platform on surface plasmon polaritons (SPPs) multimode excitation and emission manipulation. Here, an atomic smooth triangular waveguide with controllable multichannel transmission and relative long 1/e decay length is demonstrated. Corresponding SPPs excitation and propagation process are investigated through far-field and near-field distributions both experimentally and numerically. It is found that two different SPPs propagation modes can be selectively excited and supported on the surface of the...

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Interaction of light and surface plasmon polaritons in Ag Islands studied by nonlinear photoemission microscopy

Cited by 49 publications

References 25 publications

Robustness of plasmonic angular momentum confinement in cross resonant optical antennas

Robustness of plasmonic angular momentum confinement in cross resonant optical antennas

Nonlinear Photoemission Electron Micrographs of Plasmonic Nanoholes in Gold Thin Films

Controlled Multichannel Surface Plasmon Polaritons Transmission on Atomic Smooth Silver Triangular Waveguide

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