Realistic Silver Optical Constants for Plasmonics

  title={Realistic Silver Optical Constants for Plasmonics},
  author={Yajie Jiang and Supriya Pillai and Martin A. Green},
  journal={Scientific Reports},
Silver remains the preferred conductor for optical and near-infrared plasmonics. Many high-profile studies focus exclusively on performance simulation in such applications. Almost invariably, these use silver optical data either from Palik’s 1985 handbook or, more frequently, an earlier Johnson and Christy (J&C) tabulation. These data are inconsistent, making it difficult to ascertain the reliability of the simulations. The inconsistency stems from challenges in measuring representative… 
The Quest for Zero Loss: Unconventional Materials for Plasmonics
It is shown how, in specific circumstances, the selection of certain other materials might be more useful for plasmonic devices, including Tix N, VO2, Al, Cu, Al-doped ZnO, and Cu-Al alloys.
Optical properties of single crystal silver thin films on mica for high performance plasmonic devices
We systematically investigate the optical properties of silver films to clear up the inconsistency in the published values of the dielectric function of silver. The silver films were deposited on
Excitation of plasmons in self-ordered arrays of aluminum and silver nanoconcaves within UV–IR spectral range
Large-scale hexagonally aluminum nanoconcave arrays were synthesized by electrochemical anodization of aluminum using oxalic acid and mixtures of phosphoric acid and citric acid; which, in turn, were
Simultaneous Generation of Surface Plasmon and Lossy Mode Resonances in the Same Planar Platform
A planar waveguide consisting of a coverslip for a microscope glass slide was deposited in one of its two faces with two materials: silver and indium tin oxide (ITO). The incidence of light by the
Grain boundary effects on the optical constants and Drude relaxation times of silver films
Silver demonstrates the unique optical properties that make it suitable for various plasmonic applications. Determining the accurate optical constants for silver and investigating its dependence on
Optical dielectric constants of single crystalline silver films in the long wavelength range
Optical dielectric constants are critical to modeling the electronic and optical properties of materials. Silver, as a noble metal with low loss, has been extensively investigated. The recently
Optical Janus Effect in Large Area Multilayer Plasmonic Films
Plasmonic and other nanoparticles have attracted considerable interest for their role in structural coloration. The optical “Janus” effect, where the color of light reflected from a partially
Topological plasmonic waveguides in triharmonic metal gratings
Topological surface-plasmon-polaritons at optical frequencies in tri-harmonic diffraction gratings formed at a metal–dielectric interface are studied to well approximate a bipartite Kronig–Penney model.
Design of photonic light-trapping structures for ultra-thin solar cells
Ultra-thin (< 100 nm absorber thickness) GaAs cells are a promising avenue for the design of solar cells with increased radiation tolerance for space applications. To address the high transmission


Re-evaluation of literature values of silver optical constants.
There is a need for an improved data set for realistic simulation of experimentally obtainable properties of silver in optical applications, with modelling producing either highly optimistic or very pessimistic results, depending on application.
Surface plasmon-polariton study of the optical dielectric function of zinc
Abstract The optical dielectric function of silver is measured by excitation of surface plasmon-polaritons on a silver-covered silica grating for a range of wavelengths in the visible region of the
Searching for better plasmonic materials
A comparative study of various materials including metals, metal alloys and heavily doped semiconductors is presented and an approach for realizing optimal plasmonic material properties for specific frequencies and applications is outlined.
Plasmonics for improved photovoltaic devices.
Recent advances at the intersection of plasmonics and photovoltaics are surveyed and an outlook on the future of solar cells based on these principles is offered.
Metamaterial-plasmonic absorber structure for high efficiency amorphous silicon solar cells.
We show that a planar structure, consisting of an ultrathin semiconducting layer topped with a solid nanoscopically perforated metallic film and then a dielectric interference film, can highly absorb
Unified Theory of Surface-Plasmonic Enhancement and Extinction of Light Transmission through Metallic Nanoslit Arrays
It is shown that the SPPs excited on the entrance and exit interfaces induce near-total internal reflection and abrupt phase change of the slit-guided mode, which quantitatively describes positive and negative effects of SPP excitation in a self-consistent manner.
Sub–Diffraction-Limited Optical Imaging with a Silver Superlens
This work demonstrated sub–diffraction-limited imaging with 60-nanometer half-pitch resolution, or one-sixth of the illumination wavelength, using silver as a natural optical superlens and showed that arbitrary nanostructures can be imaged with good fidelity.
Coupling model for an extended-range plasmonic optical transformer scanning probe
Near-field scanning probes are extremely useful for imaging with a spatial resolution on the nanometre scale. Unfortunately, such approaches are usually limited by a very short working distance.
A polychromatic approach to far-field superlensing at visible wavelengths
A plasmonic metalens based on metallic nanorods that, when used with broadband light fields, can beat the diffraction limit for imaging and focusing from the far field.
Three-dimensional imaging of localized surface plasmon resonances of metal nanoparticles
3D images related to LSPRs of an individual silver nanocube can be reconstructed through the application of electron energy-loss spectrum imaging, mapping the excitation across a range of orientations, with a novel combination of non-negative matrix factorization, compressed sensing and electron tomography.