Experimental study of subwavelength focusing by lefthanded metamaterials with a negative refractive index

Ekmel Ozbay; Koray Aydin

doi:10.1117/1.2805841

Experimental study of subwavelength focusing by lefthanded metamaterials with a negative refractive index

Ekmel Ozbay^*, Koray Aydin

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Two dimensional (2D) left-handed metamaterials (LHM) exhibiting negative refraction and subwavelength imaging are studied experimentally. A left-handed transmission band is observed at the frequencies where both dielectric permittivity and magnetic permeability are simultaneously negative. 2D LHM structure is verified to have a negative refractive index by measuring the refraction through a prism-shaped sample. Subwavelength focusing is observed by using a flat LHM superlens.

Original language	English (US)
Article number	11695
Journal	Journal of Nanophotonics
Volume	1
Issue number	1
DOIs	https://doi.org/10.1117/1.2805841
State	Published - 2007

Keywords

Left-handed metamaterial
Negative refractive index
Superlens

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1117/1.2805841

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title = "Experimental study of subwavelength focusing by lefthanded metamaterials with a negative refractive index",

abstract = "Two dimensional (2D) left-handed metamaterials (LHM) exhibiting negative refraction and subwavelength imaging are studied experimentally. A left-handed transmission band is observed at the frequencies where both dielectric permittivity and magnetic permeability are simultaneously negative. 2D LHM structure is verified to have a negative refractive index by measuring the refraction through a prism-shaped sample. Subwavelength focusing is observed by using a flat LHM superlens.",

keywords = "Left-handed metamaterial, Negative refractive index, Superlens",

author = "Ekmel Ozbay and Koray Aydin",

note = "Funding Information: This work is supported by the European Union under the projects EU-NoE-METAMORPHOSE, EU-NoE-PHOREMOST, and TUBITAK under Projects Nos. 104E090, 105E066, 105A005, and 106A017. One of the authors (E.O.) also acknowledges partial support from the Turkish Academy of Sciences.",

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AU - Aydin, Koray

N1 - Funding Information: This work is supported by the European Union under the projects EU-NoE-METAMORPHOSE, EU-NoE-PHOREMOST, and TUBITAK under Projects Nos. 104E090, 105E066, 105A005, and 106A017. One of the authors (E.O.) also acknowledges partial support from the Turkish Academy of Sciences.

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AB - Two dimensional (2D) left-handed metamaterials (LHM) exhibiting negative refraction and subwavelength imaging are studied experimentally. A left-handed transmission band is observed at the frequencies where both dielectric permittivity and magnetic permeability are simultaneously negative. 2D LHM structure is verified to have a negative refractive index by measuring the refraction through a prism-shaped sample. Subwavelength focusing is observed by using a flat LHM superlens.

KW - Left-handed metamaterial

KW - Negative refractive index

KW - Superlens

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Experimental study of subwavelength focusing by lefthanded metamaterials with a negative refractive index

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Keywords

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