Metamaterials: transforming theory into reality

Litchinitser, Natalia M.; Shalaev, Vladimir M.

doi:10.1364/josab.26.00b161

Cited by 33 publications

(16 citation statements)

References 92 publications

(127 reference statements)

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“…MMs have an abundance of applications, fabrication schemes, and designs, all of which depend of the particular bandwidth of interest, and desired functionality. Optical MMs have been extensively studied, both theoretically and experimentally 2,3,4 . In the visible region of the E-M spectrum, metals such as gold and silver are most commonly used 3 .…”

Section: Introductionmentioning

confidence: 99%

Infrared metamaterial by RF magnetron sputtered ZnO/Al:ZnO multilayers

et al. 2018

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Hyperbolic metamaterials create artificial optical anisotropy using metallic wires suspended in a dielectric medium, or alternating layers of a metal and dielectric. Here we fabricated ZnO/Al:ZnO (AZO) multilayers by the RF magnetron sputtering deposition technique. Our fabricated multilayers satisfy the conditions required for a type I hyperbolic metamaterial. The optical response of individual AZO and ZnO films, as well as the multilayered film were investigated via angular transmittance and spectroscopic ellipsometry measurements. The optical response of the multilayered system is predicted using the nonlocal-corrected Effective Medium Approximation (EMA). The spectroscopic ellipsometry data of the multilayered system was modeled using a uniaxial material model and EMA model. Both theoretical and experimental studies validate the multilayers undergo a hyperbolic transition at a wavelength of 2.2 μm.

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Section: Introductionmentioning

confidence: 99%

Infrared metamaterial by RF magnetron sputtered ZnO/Al:ZnO multilayers

et al. 2018

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“…Moreover, with recent advances in nanofabrication technologies, it is also possible to construct an electromagnetic resonator by taking a plasmonics oriented approach, i.e., using nanostructures made with metals and working in the optical regime [2]. Both the physical understanding and the technical implementation of these two different categories of electromagnetic resonators have been well developed; however, due to the emergence of the new concept of metamaterials in microwave engineering and optics [3][4][5][6][7][8], currently there still exist a significant amount of related research interests . A noticeable example that represents the progress of microwave engineering oriented electromagnetic resonators is given by Engheta [9], who theoretically showed that the size of a one-dimensional electromagnetic resonator can be reduced into the subwavelength regime by inserting a pair of righthanded and left-handed slabs into a space sandwiched between two perfectly conducting parallel planes.…”

Section: Introductionmentioning

confidence: 99%

Analytical design of quasi-closed subwavelength electromagnetic rectangular resonators using stacks of dielectric–plasmonic bilayers

Zhu¹

2012

J. Opt. Soc. Am. B

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We show that quasi-closed subwavelength electromagnetic rectangular resonators can be constructed using stacked dielectric-plasmonic bilayer structures, in an analogy to the dielectric resonators formed by materials with large permittivity commonly seen in microwave engineering. We establish an analytic framework for designing such subwavelength resonators by providing formulas for calculating the resonant frequency and the radiation/ material loss Q-factors of the fundamental mode. The provided analytic formulas yield accurate results when compared with the numerical simulations for a broad range of design parameter sets. The proposed stack resonator in principle can be made arbitrarily small and, in the absence of material loss, can have Q-factors larger than 10 5 .

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“…In general, plasmonic photonic crystals have a large refractive index contrast and can be classified as strongly modulated photonic crystals, which exhibit interesting refractive properties, such as negative refraction [41], as demonstrated for all-dielectric 2D [42][43][44] and 3D [45,46] photonic crystals. In metallodielectric crystals, however, negative refraction is usually attributed either to the simultaneous existence of an electric and a magnetic resonance or to the anisotropy of the crystal [47]. The former case can be realized, e.g., in assemblies of metalcoated spheres made of a polar material characterized by a resonant permittivity function [48][49][50].…”

Section: Introductionmentioning

confidence: 99%