Ultrafast Plasmon Propagation in Nanowires Characterized by Far-Field Spectral Interferometry

Rewitz, Christian; Keitzl, Thomas; Tuchscherer, Philip; Huang, Jer‐Shing; Geisler, Peter; Razinskas, Gary; Hecht, Bert; Brixner, Tobias

doi:10.1021/nl202864n

Cited by 77 publications

(76 citation statements)

References 46 publications

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“…The plasmon group velocity is around half that of light in vacuum and decreases with decreasing excitation wavelength [45,46] . Rewitz et al measured the plasmon group velocity for silver nanowires of different diameters using a spectral interferometry technique [47] . Their results show that the plasmon group velocity is decreased dramatically for nanowires with a diameter smaller than 100 nm ( Figure 5 ).…”

Section: Group Velocity and Propagation Lengthmentioning

confidence: 99%

Nanowire-based plasmonic waveguides and devices for integrated nanophotonic circuits

Wei

2012

Nanophotonics

118

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The fast development of plasmonics have greatly advanced our understanding to the abundant phenomena related to surface plamon polaritons (SPPs) and improved our ability to manipulate light at the nanometer scale. With tightly confi ned local fi eld, SPPs can be transmitted in waveguides of subwavelength dimensions. Nanophotonic circuits built with plasmonic elements can be scaled down to dimensions compatible with semiconductor-based nanoelectronic circuits, which provides a potential solution for the next-generation information technology. Different structures have been explored as plasmonic waveguides for potential integration applications. This review is focused on metallic nanowire waveguides and functional components in nanowire networks. We reviewed recent progress in research about plasmon generation, emission direction and polarization, group velocity, loss and propagation length, and the near-fi eld distribution revealed by quantum dot fl uorescence imaging. Electrical generation and detection of SPPs moves towards the building of plasmonic circuits, where bulky external light sources and detectors may be omitted. The coupling between metal nanowires and emitters is important for tailoring light-matter interactions, and for various potential applications. In multi-nanowire structures, plasmon signal control and processing are introduced. The working principles of these nanowire-based devices, which are based on the control to the near fi eld distributions, will become the design rule for nanophotonic circuits with higher complexity for optical signal processing. The recent developments in hybrid photonic-plasmonic waveguides and devices are promising for making devices with unprecedented performance.

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Section: Group Velocity and Propagation Lengthmentioning

confidence: 99%

Nanowire-based plasmonic waveguides and devices for integrated nanophotonic circuits

Wei

2012

Nanophotonics

118

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“…6(a). Single metal stripes and nanowires are commonly used waveguides for SPPs [18,20,21,51]. However, the mismatch in the modal distribution makes it hard to excite the radiative mode of a gap nanoantenna using single metal stripe.…”

Section: Applications In a Complex Integrated Nanocircuitmentioning

confidence: 99%

Plasmonic mode converter for controlling optical impedance and nanoscale light-matter interaction

Hung

Huang

2012

Opt. Express

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Abstract:To enable multiple functions of plasmonic nanocircuits, it is of key importance to control the propagation properties and the modal distribution of the guided optical modes such that their impedance matches to that of nearby quantum systems and desired light-matter interaction can be achieved. Here, we present efficient mode converters for manipulating guided modes on a plasmonic two-wire transmission line. The mode conversion is achieved through varying the path length, wire cross section and the surrounding index of refraction. Instead of pure optical interference, strong near-field coupling of surface plasmons results in great momentum splitting and modal profile variation. We theoretically demonstrate control over nanoantenna radiation and discuss the possibility to enhance nanoscale light-matter interaction. The proposed converter may find applications in surface plasmon amplification, index sensing and enhanced nanoscale spectroscopy.

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“…In the latter, the key point is the control of the strong-field enhancement localized in space on the nanometer scale and in time on the fs and sub-fs scale, either in the linear or non-linear regime. Different studies have been carried out, for example, on ultrafast fs-51 and as-microscopy 52,53 or photoscopy 54 , on sub-fs plasmon dynamics in tapered waveguides 55 , on nanowires [56][57][58][59] , and on silver nanoparticles 60,61 . Others new area of research with increasing interest due to strong-field phenomena are highorder harmonic generation (HHG) [62][63][64][65][66][67][68] , hard X-ray production from gold nanoplasma enhanced by prechirped ultrafast laser pulses 69 , real-space coherent manipulation of electrons motion in single tunnel junction 70 , and surface plasmon-based particle acceleration [71][72][73][74][75][76][77] .…”

Section: Introductionmentioning

confidence: 99%

Linear ultrafast dynamics of plasmon and magnetic resonances in nanoparticles

et al. 2017

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In this study we present an analytical description of the ultrafast localized surface plasmon and magnetic resonance dynamics in a single nanoparticle (Ag or Si, respectively), driven by an ultrashort (fs-timescale) Gaussian pulse. Three possible scenarios have been found depending on the incident field, i.e. pulse duration much shorter, similar and much longer than the localized surface plasmon resonance (LPSR) lifetime. A rich physics arises for τ pulse < τLSP R, even in the linear regime. The surface plasmon dynamics is manifested as (i) a temporal delay of the surface plasmon excitation with regard to the freely propagating pulse and (ii) as a negative exponential tail after the exciting pulse is over. In addition, for sub-fs pulses clear oscillations in the near-field decay have been observed. A similar scenario has been observed considering a non-absorbing Si sphere. Nanoparticle resonance dynamics may lead to a wealth of new phenomena and applications in nanophotonics such as multipole order resonances interference, pulse induced delay or temporal shaping on the fsscale, high harmonic generation, attosecond near-field pulse sources and electron acceleration from metasurface or 3D engineered nanostructures.

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Ultrafast Plasmon Propagation in Nanowires Characterized by Far-Field Spectral Interferometry

Cited by 77 publications

References 46 publications

Nanowire-based plasmonic waveguides and devices for integrated nanophotonic circuits

Nanowire-based plasmonic waveguides and devices for integrated nanophotonic circuits

Plasmonic mode converter for controlling optical impedance and nanoscale light-matter interaction

Linear ultrafast dynamics of plasmon and magnetic resonances in nanoparticles

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