Phase and Polarization Control as a Route to Plasmonic Nanodevices

Sukharev, Maxim; Seideman, Tamar

doi:10.1021/nl0524896

Cited by 113 publications

(98 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[38] The target structure of interest is shown in Figure 11. A T-structure as shown in Figure 11 can be applied as a model for plasmonic waveguides, [136,137] three-way interconnects, [138] threeway connectors, [139] spin filters [140] or a transistor structure with leads. [141][142][143] Tarazona [144] introduced a free-energy density functional for a system of hard spheres.…”

Section: Density Functional Theory Model With Anisotropic Interactionsmentioning

confidence: 99%

Fabrication, Assembly, and Application of Patchy Particles

Pawar

Kretzschmar

2010

Macromol. Rapid Commun.

450

411

View full text Add to dashboard Cite

The site‐specific engineering of colloidal surfaces has provided a powerful approach to pushing the boundaries of today's materials research. The resulting surface‐anisotropic and patchy particles have become the center of vital research areas, ranging from the need for large‐scale fabrication techniques to exploring new applications of these materials. This Review summarizes patchy particle fabrication techniques, including but not limited to particle and nanosphere lithography and glancing‐angle deposition. The variety of existing patchy particle fabrication techniques is revealed and the need for a scalable approach to high‐volume patchy particle production is identified. Ongoing modeling efforts describing patchy particle interactions and properties are reviewed as potential predictive tools. Research endeavors that deal with the directed assembly of patchy particles in electric and magnetic fields, as well as with supraparticular assembly through chemical interactions, are discussed. The Review is concluded with a note on the future application of patchy particles as phoretic motors.magnified image

show abstract

Section: Density Functional Theory Model With Anisotropic Interactionsmentioning

confidence: 99%

Fabrication, Assembly, and Application of Patchy Particles

Pawar

Kretzschmar

2010

Macromol. Rapid Commun.

450

411

View full text Add to dashboard Cite

show abstract

“…Furthermore, we show the existence of multiple branches of such FB modes that have slow light characteristics fundamentally different from the single thin film case. Our work can lead to applications where FB modes are used for thin-film characterization [12], sensing [13], imaging [14], absorption enhancement [15] and polarization control [16].…”

mentioning

confidence: 99%

Ferrell–Berreman Modes in Plasmonic Epsilon-near-Zero Media

et al. 2014

View full text Add to dashboard Cite

We observe unique absorption resonances in silver/silica multilayer-based epsilon-near-zero (ENZ) metamaterials that are related to radiative bulk plasmon-polariton states of thin-films originally studied by Ferrell (1958) and Berreman (1963). In the local effective medium, metamaterial description, the unique effect of the excitation of these microscopic modes is counterintuitive and captured within the complex propagation constant, not the effective dielectric permittivities. Theoretical analysis of the band structure for our metamaterials shows the existence of multiple Ferrel-Berreman branches with slow light characteristics. The demonstration that the propagation constant reveals subtle microscopic resonances can lead to the design of devices where Ferrell-Berreman modes can be exploited for practical applications ranging from plasmonic sensing to imaging and absorption enhancement. Keywords: plasmon resonance, epsilon-near-zero, metamaterials, plasmonics An important class of artificial media are the epsilon-near-zero (ENZ) metamaterials that are designed to have a vanishing dielectric permittivity | | → 0. Waves propagating within ENZ media have a divergent phase velocity that can be used to guide light with zero phase advancement through sharp bends within sub-wavelength size channels [1, 2], or to tailor the phase of radiation/luminescence within a prescribed ENZ structure [3,4]. The electric field intensity within an ENZ medium can be enhanced relative to that in free space leading to strong light absorption [5]. This enhanced absorption in ENZ media has been exploited for novel polarization control and filtering in thin films [6], as well the proposal to use ENZ absorption resonances to tune thermal blackbody radiation of a heated object to the band-gap of a photovoltaic cell [7]. An enhanced non-linear response based upon strong spatial dispersion of waves in ENZ media has been demonstrated, and proposed for all-optical switching [8,9].Here we show theoretically and experimentally that ENZ metamaterials support unique absorption resonances related to radiative bulk plasmon-polaritons of thin metal films. These radiative bright modes exhibit properties in stark contrast to conventional dark modes of thin-film media (surface plasmon polaritons). The unique absorption resonances manifested in our metamaterials were originally studied by Ferrell in 1958 for plasmon-polaritonic thinfilms in the ultraviolet [10], and by Berreman in 1963 for phonon-polaritonic thin-films in the mid-infrared spectral region [11]. Surprisingly, two research communities have developed this independently with little communication or overlap until now: we therefore address these resonances as Ferrell-Berreman (FB) modes of our metamaterials. Counterintiutively, in the metamaterial effective medium picture, these resonances are not captured in the metamaterial dielectric permittivity constants but rather in the effective propagation constant. Furthermore, we show the existence of multiple branches of such FB modes that have slow ...

show abstract

“…There are a vast number of studies using GAs for the geometry optimization problem in the last decade [18-20, 24-26, 34-46, 48-50] using some sort of enhancements developed for this problem and some recent GA applications are given in the references [51][52][53][54][55][56][57][58][59]. A single parent GA application can be seen in the reference [24].…”

Section: Gas For Geometry Optimization Of Nanoparticlesmentioning

confidence: 99%

Genetic Algorithms in Application to the Geometry Optimization of Nanoparticles

Dugan

Erkoç

2009

Algorithms

View full text Add to dashboard Cite

Applications of genetic algorithms to the global geometry optimization problem of nanoparticles are reviewed. Genetic operations are investigated and importance of phenotype genetic operations, considering the geometry of nanoparticles, are mentioned. Other efficiency improving developments such as floating point representation and local relaxation are described broadly. Parallelization issues are also considered and a recent parallel working single parent Lamarckian genetic algorithm is reviewed with applications on carbon clusters and SiGe core-shell structures.

show abstract

Phase and Polarization Control as a Route to Plasmonic Nanodevices

Cited by 113 publications

References 35 publications

Fabrication, Assembly, and Application of Patchy Particles

Fabrication, Assembly, and Application of Patchy Particles

Ferrell–Berreman Modes in Plasmonic Epsilon-near-Zero Media

Genetic Algorithms in Application to the Geometry Optimization of Nanoparticles

Contact Info

Product

Resources

About