Abstract
Recent years have seen a new wave of interest in layered media - namely, plasmonic multilayers - in several emerging applications ranging from transparent metals to hyperbolic metamaterials. In this paper, we review the optical properties of such subwavelength metal-dielectric multilayered metamaterials and describe their use for light manipulation at the nanoscale. While demonstrating the recently emphasized hallmark effect of hyperbolic dispersion, we put special emphasis to the comparison between multilayered hyperbolic metamaterials and more broadly defined plasmonic-multilayer metamaterials A number of fundamental electromagnetic effects unique to the latter are identified and demonstrated. Examples include the evolution of isofrequency contour shape from elliptical to hyperbolic, all-angle negative refraction, and nonlocality-induced optical birefringence. Analysis of the underlying physical causes, which are spatial dispersion and optical nonlocality, is also reviewed. These recent results are extremely promising for a number of applications ranging from nanolithography to optical cloaking. © 2014 Elsevier B.V.
Original language | English |
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Journal | Photonics and Nanostructures - Fundamentals and Applications |
Volume | 12 |
Issue number | 3 |
Pages (from-to) | 213-230 |
ISSN | 1569-4410 |
DOIs | |
Publication status | Published - 2014 |
Keywords
- Metamaterials
- Multilayered structures
- Nanophotonics
- Plasmonics
- Dispersion (waves)
- Plasmons
- Emerging applications
- Hyperbolic dispersion
- Multi-layered structure
- Negative refractions
- Optical birefringence
- Plasmonic multilayer
- Spatial dispersion
- Multilayers