Measurement of the frequency dependence of the refractive index and waveguide propagation in a metamaterial

The frequency dependences of the refractive index of structures formed of either only narrow conducting strips or only double split-ring resonators, as well as the refractive index of a metamaterial (a combination of these structures), have been measured by a two-beam hybrid interferometer. Frequenc...

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Bibliographic Details
Published in:Physics of wave phenomena 2014-10, Vol.22 (4), p.273-276
Main Authors: Golovanov, V. I., Shipilov, K. F.
Format: Article
Language:English
Subjects:
Acoustics
Metamaterials for Microwave Range of Electromagnetic Waves
Physics
Physics and Astronomy
Quantum Optics
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Summary:The frequency dependences of the refractive index of structures formed of either only narrow conducting strips or only double split-ring resonators, as well as the refractive index of a metamaterial (a combination of these structures), have been measured by a two-beam hybrid interferometer. Frequency ranges are found in which (at a certain orientation of metamaterial with respect to the electromagnetic field vector) the refractive index of metamaterial is either positive, or negative, or zero. The spatial structure of the field distribution in an electromagnetic wave passed through a metamaterial is measured by a radiovisor. It is shown that the structure under study has waveguide properties and makes it possible to form almost aberration-free images.
ISSN:1541-308X
1934-807X
DOI:10.3103/S1541308X14040116