NDLI: Negative-Refractive-Index Transmission-Line (NRI-TL) Metamaterial Lenses and Superlenses

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Negative-Refractive-Index Transmission-Line (NRI-TL) Metamaterial Lenses and Superlenses

Content Provider	Scilit
Author	Iyer, Ashwin K. Eleftheriades, George V.
Copyright Year	2017
Description	This chapter discusses experimental verifications of several lenses realized using the negative-refractive-index transmission-line (NRI-TL) approach and begins with a description of some of the first experimental demonstrations of focusing and subdiffraction imaging using planar NRI-TL metamaterials. NRI-TL metamaterials are known for their extremely broadband and low-loss negative refractive index (NRI) properties and are easy to construct. The phenomenon of free-space subdiffraction imaging, although not using Veselago–Pendry superlenses, has been experimentally demonstrated by many types of metamaterials. The chapter describes two such experiments in the planar regime. The first is a large NRI-TL metamaterial planar lens designed to demonstrate the property of focusing across a planar interface by measurements of field magnitudes and phases above the grid surface. The second is a NRI-TL metamaterial planar superlens, carefully designed according to the strict requirements of the Veselago–Pendry superlens to demonstrate focusing beyond the diffraction limit by the resonant enhancement of evanescent waves emanating from the source. Book Name: Applications of Metamaterials
Related Links	https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781420054248-1&type=chapterpdf
Ending Page	1
Page Count	1
Starting Page	1
DOI	10.1201/9781420054248-1
Language	English
Publisher	Informa UK Limited
Publisher Date	2017-12-19
Access Restriction	Open
Subject Keyword	Book Name: Applications of Metamaterials Public, Environmental and Occupational Health Statistics and Probability Metamaterials Nri Tl Demonstrations of Focusing Subdiffraction Lenses Superlens Planar Extremely
Content Type	Text
Resource Type	Chapter

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