Table of Contents
What are plasmonic devices?
Plasmonics deals with the investigation of electron oscillations, called surface plasmons (SPs). The SPs are generated in prism configuration, nanostructures (metallic/dielectric), and nanoparticles. The light confinement at nanoscale is one of the unique property of SPs.
What are plasmonic structures?
Plasmonic structures, or systems generally containing nanostructured metallic components allowing for the exploitation of surface plasmon resonances, continue to draw much experimental and theoretical interest. This is due to the ability of surface plasmons to capture, concentrate, and propagate optical energy.
What does plasmonic mean?
Plasmonics or nanoplasmonics refers to the generation, detection, and manipulation of signals at optical frequencies along metal-dielectric interfaces in the nanometer scale.
What are plasmonic electrons?
Plasmons are the oscillations of free electrons that are the consequence of the formation of a dipole in the material due to electromagnetic waves.
What is plasmonic biosensor?
Plasmonic biosensors are powerful tools for contaminant detection in food samples (Table 1). Their excellent analytical performances reflect the sensitivity of transducers that can provide recognition signal directly in complex food matrices.
What is a field enhancement?
When the optical fields present on such structures are induced by an incident wave, one can describe the field enhancement as the ratio of the local electric field to that of the incident electric field. This field enhancement effect has profound implications for many optical phenomena.
What are plasmonic Metasurfaces?
So-called plasmonic metasurfaces are 2D arrays of such optical nanoantennas, distributed on a substrate to provide properties beyond the mere average response of the materials they are made from.
What are plasmonic nanoparticles used for?
Plasmonic nanoparticles are extremely strong absorbers and scatters of light and are used in lateral flow diagnostics, surface enhanced spectroscopy, labeling, and color changing sensors.
What are plasmonic metamaterials and how do they work?
Plasmonic metamaterials provide additional possibilities for utilizing nonlinear effects for all-optical switching, namely controlled interaction between the components (“atoms”) forming the metamaterial.
What is the best book on plasmonic electrodynamics?
Gramotnev, D. K. & Bozhevolnyi, S. I. Plasmonics beyond the diffraction limit. Nature Photon. 4, 83–91 (2010). Cai, W. & Shalaev, V. M. Optical Metamaterials (Springer, 2010). Veselago, V. G. The electrodynamics of substances with simultaneously negative values of epsilon and mu. Sov. Phys. Uspekhi 10, 509–514 (1968).
What determines the optical properties of metamaterials?
Optical properties of metamaterials are determined by plasmonic resonances of the constituents, e.g., split-ring resonators or nanorods, as well as the electromagnetic coupling between them [11.46].
How do the plasmonic modes of a meta-atom interact with other meta-atoms?
The plasmonic modes supported by an individual meta-atom will be modified by the presence of other members of the array, and the response may change in two ways.