Channel plasmon subwavelength waveguide components including interferometers and ring resonators

Bozhevolnyi, Sergey I.; Volkov, Valentyn S.; Devaux, Éloïse; Laluet, Jean-Yves; Ebbesen, Thomas W.

doi:10.1038/nature04594

Cited by 2,061 publications

(1,240 citation statements)

References 25 publications

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“…"Metals can be well integrated with the chip design, " says Polman, "so you may be able to distribute light over an integrated circuit by plasmons. " Indeed, structures such as silver nanowires 2 or grooves etched into metal surfaces 3 can provide pathways that guide light across a chip in whatever direction the designers might need.…”

Section: Guiding Lightmentioning

confidence: 99%

Plasmonics: Surfing the wave

Heber¹

2009

Nature

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Section: Guiding Lightmentioning

confidence: 99%

Plasmonics: Surfing the wave

Heber¹

2009

Nature

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“…The efficient coupling of channel SPPs-channel-plasmon-polaritons (CPP)-into Vshaped grooves has already been demonstrated and characterized by near-field scanning optical microscopy (NSOM), as shown in Fig. 5.3 [95,108]. A smooth gold film is deposited on a fused silica substrate and contains V-shaped channels, which have a tailored geometry in terms of opening θ angle and depth d (see SEM image in Fig.…”

Section: Concept For Efficient Plasmon-enhanced Hhgmentioning

confidence: 99%

Extreme-ultraviolet light generation in plasmonic nanostructures

et al. 2013

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The present (cumulative) thesis examines fundamentals of nanostructure-enhanced extreme-ultraviolet light generation in noble gases using two different nanostructure geometries for local field-enhancement. Specifically, resonant antennas and tapered hollow waveguide nanostructures are utilized to enhance low-energy femtosecond laser pulses, which in turn induce light emission from excited xenon, argon and neon atoms and ions. Spectral analysis of this radiation reveals that coherent high-order harmonic generation is not feasible under the examined conditions, contrary to former expectations and reports. Instead, the spectral characteristics unequivocally identify that incoherent fluorescence from multiphoton excited and strong-field ionized gas atoms is the predominant process in such schemes. Furthermore, novel nanostructure-enhanced effects are reported such as surface-enhanced fifth-order harmonic generation (from bow-tie nanoantennas) and the formation of a bistable nanoplasma (in a hollow waveguide). These effects offer intriguing links between nonlinear nano-optics, plasma dynamics and extreme-ultraviolet radiation.v vi

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“…To answer this question, I plot in Figure 1b the right-hand side f(k,ω) of eq 1 as a function of Re k for ω ) 3.1 eV that is between ω 2 and ω 3 In contrast, for frequency ω < ω 2 , there is only one nearly real, small-k root of eq 1 corresponding to a fast SPP. There is also the second root, but it has a very large imaginary part and does not correspond to any propagating SPPs (data not shown).…”

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confidence: 99%

Slow Propagation, Anomalous Absorption, and Total External Reflection of Surface Plasmon Polaritons in Nanolayer Systems

Stockman

2006

Nano Lett.

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I predict that a nanoscopic, high-permittivity layer on the surface of a plasmonic metal can cause total external reflection of surface plasmon polaritons (SPPs). Such a layer can be used as a mirror in nanoplasmonics, in particular for resonators of nanolasers and spasers and can also be used in adiabatic nanooptics. I also show that the earlier predicted slow propagating SPP modes, especially those with negative refraction, are highly damped.Surface plasmon polaritons (SPPs) are electromagnetic waves propagating at the surface of a metal or interface between metal and dielectric, see, for example, refs 1 and 2. The SPPs possess many remarkable optical properties. Their wavelength can be significantly smaller than the wavelength in vacuum, and they can propagate long distances in comparison to their wavelength, which can be used in various plasmonic devices including waveguides 3,4 and microscopes. 5 I have introduced nanoconcentration of energy due to slowing and stopping of SPPs in tapered nanoplasmonic waveguides. 6 This effect allows one to transfer energy and coherence from the far zone to the near zone without major losses. I have also proposed the adiabatic transformation of energy in other types of graded nanostructures: a two-layer system with graded dielectric permittivity and a thin dielectric layer with variable thickness over metal. 7 In this system, I have predicted slow propagation and stopping of SPPs. The dielectric layers on the metal systems have been considered earlier as lenses and toy models of black holes. 8 Later, systems consisting of a thin dielectric layer over metal were shown to possess slow SPP propagation in a wide spectral band. 9 In this Letter, I show, in particular, that in this region of the slow SPPs, the imaginary part of the wavevector becomes on the order of its real part, so the propagation is actually absent. Therefore, even for the best plasmonic metals such as silver, this effect of slow propagation cannot actually be used in most applications envisioned in ref 9. The physical cause of this phenomenon is that in the region of slow propagation the electric fields of the SPPs are concentrated in the metal, which leads to the anomalously high losses.Even more important, I predict that besides this disappointing property, there is a new, interesting effect with significant potential applications in such systems, which has been overlooked before: total external reflection of SPPs.

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Channel plasmon subwavelength waveguide components including interferometers and ring resonators

Cited by 2,061 publications

References 25 publications

Plasmonics: Surfing the wave

Plasmonics: Surfing the wave

Extreme-ultraviolet light generation in plasmonic nanostructures

Slow Propagation, Anomalous Absorption, and Total External Reflection of Surface Plasmon Polaritons in Nanolayer Systems

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