Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces

Williams, Christopher R.; Andrews, S. R.; Maier, Stefan A.; Fernández‐Domínguez, Antonio I.; Martín‐Moreno, Luis; García‐Vidal, F. J.

doi:10.1038/nphoton.2007.301

Cited by 579 publications

(346 citation statements)

References 26 publications

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“…However, in the mid-IR, noble metal SPPs evolve into Zenneck waves and their dispersion curves almost coincide with the light line. In general, the mid-IR spectrum is not easily accessible to metallic plasmonics 4,13,14 . Specially-designed structured surfaces and wires have been proposed to extend the surface plasmon into the mid-IR range; however, at a high fabrication complexity and cost 15,16 .…”

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confidence: 99%

One-dimensional surface phonon polaritons in boron nitride nanotubes

et al. 2014

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Surface polaritons, which are electromagnetic waves coupled to material charge oscillations, have enabled applications in concentrating, guiding and harvesting optical energy below the diffraction limit. Surface plasmon polaritons involve oscillations of electrons and are accessible in noble metals at visible and near-infrared wavelengths, whereas surface phonon polaritons (SPhPs) rely on phonon resonances in polar materials, and are active in the mid-infrared. Noble metal surface plasmon polaritons have limited applications in the mid-infrared. SPhPs at flat interfaces normally possess long polariton wavelengths and provide modest field confinement/enhancement. Here we demonstrate propagating SPhPs in a one-dimensional material consisting of a boron nitride nanotube at mid-infrared wavelengths. The observed SPhP exhibits high field confinement and enhancement, and a very high effective index (n eff B70). We show that the modal and propagation length characteristics of the SPhPs may be controlled through the nanotube size and the supporting substrates, enabling mid-infrared applications.

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One-dimensional surface phonon polaritons in boron nitride nanotubes

et al. 2014

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“…The current authors later experimentally verified their proposal, using finite depth holes, confirming that the dispersion of these ''spoof'' surface plasmons are asymptotic to the resonance of the lowest energy waveguide resonance of the void. Since then, several interesting plasmonic surfaces have been reported upon in both the microwave and THz regime [8][9][10][11], notably concerning the confinement of surfaceplasmon-like modes and the propagation of these modes on corrugated metal wires.…”

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Microwave Surface-Plasmon-Like Modes on Thin Metamaterials

2009

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It has recently been shown that the structured surface of a perfect conductor can support surfaceplasmon-like modes [Pendry et al., Science 305, 847 (2004)]. Such structures have a thickness of at least the order of the wavelength. Here, using microwave wavelength radiation incident beyond the critical angle of a wax prism, we quantify the surface-plasmon-like dispersion for a metamaterial surface with a thickness very much smaller than the incident wavelength.

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“…6 Experimental evidence of the existence of this kind of waves in the terahertz regime ͑where metals are conductors working in the skin effect regime͒ has recently been reported in Ref. 7. It is worth mentioning that in the microwave range, the guiding of surface waves by periodically structured metal surfaces is known since the forties [8][9][10] and its study is included in advanced textbooks.…”

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Experimental verification of extraordinary transmission without surface plasmons

Medina

Ruiz‐Cruz

Mesa

et al. 2009

Applied Physics Letters

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This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.This letter provides an experimental demonstration of extraordinary transmission in a closed waveguide system loaded with an electrically small diaphragm. This is a situation where the standard surface plasmon polariton SPP theory does not apply. The theoretical explanation is then based on the concept of impedance matching. This concept has previously been applied by some of the authors to account for enhanced transmission in situations where surface plasmon theory can be used: periodic arrays of small holes or slits in flat metal screens. The experiment in this letter supports the impedance matching model, valid for when SPPs are present or not. © 2009 American Institute of PhysicsThe authors would like to acknowledge the support of this research by the Spanish Ministry of Science and Innovation and European Union Feder Funds Grant Nos. TEC2007-65376 and Consolider Ingenio 2010 CSD2008- 00066 and by the Spanish Junta de Andalucía Project No. TIC-25

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Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces

Cited by 579 publications

References 26 publications

One-dimensional surface phonon polaritons in boron nitride nanotubes

One-dimensional surface phonon polaritons in boron nitride nanotubes

Microwave Surface-Plasmon-Like Modes on Thin Metamaterials

Experimental verification of extraordinary transmission without surface plasmons

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