Wood zone plate fishnet metalens

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Wood zone plate fishnet metalens. / Orazbayev, Bakhtiyar; Beruete, Miguel; Navarro-Cia, Miguel.

In: EPJ Applied Metamaterials, Vol. 2, 8, 23.12.2015, p. 1-6.

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Orazbayev, Bakhtiyar ; Beruete, Miguel ; Navarro-Cia, Miguel. / Wood zone plate fishnet metalens. In: EPJ Applied Metamaterials. 2015 ; Vol. 2. pp. 1-6.

Bibtex

@article{8ec8fa4073ad4b988edb1c3a26c52d58,
title = "Wood zone plate fishnet metalens",
abstract = "Fresnel-zone plate lenses provide focusing performance while having low profile. Unfortunately, they usually display higher reflection losses than conventional dielectric lenses. Here, we demonstrate a low-profile Wood zone plate metalens based on the fishnet metamaterial working in a near-zero regime with an equivalent refractive index less than unity (nf = 0.51). The metalens is made of alternating dielectric and fishnet metamaterial concentric rings. The use of fishnet metamaterial allows reducing the reflections from the lens, while maintaining low profile, low cost and ease of manufacturing. The lens is designed to work at the W-band of the millimeter-waves range with a focal length FL = 22.8 mm (7.5 k0) aiming at antenna or radar system applications. The focusing performance of the lens along with its radiation characteristics in a lens antenna configuration have been studied numerically and confirmed experimentally, showing a gain improvement of ~2.5 dB with respect to a fishnet Soret metalens.",
keywords = "fishnet metamaterial, Fresnel zone plates, Lens",
author = "Bakhtiyar Orazbayev and Miguel Beruete and Miguel Navarro-Cia",
year = "2015",
month = dec,
day = "23",
doi = "10.1051/epjam/2015014",
language = "English",
volume = "2",
pages = "1--6",
journal = "EPJ Applied Metamaterials",
issn = "2272-2394",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - Wood zone plate fishnet metalens

AU - Orazbayev, Bakhtiyar

AU - Beruete, Miguel

AU - Navarro-Cia, Miguel

PY - 2015/12/23

Y1 - 2015/12/23

N2 - Fresnel-zone plate lenses provide focusing performance while having low profile. Unfortunately, they usually display higher reflection losses than conventional dielectric lenses. Here, we demonstrate a low-profile Wood zone plate metalens based on the fishnet metamaterial working in a near-zero regime with an equivalent refractive index less than unity (nf = 0.51). The metalens is made of alternating dielectric and fishnet metamaterial concentric rings. The use of fishnet metamaterial allows reducing the reflections from the lens, while maintaining low profile, low cost and ease of manufacturing. The lens is designed to work at the W-band of the millimeter-waves range with a focal length FL = 22.8 mm (7.5 k0) aiming at antenna or radar system applications. The focusing performance of the lens along with its radiation characteristics in a lens antenna configuration have been studied numerically and confirmed experimentally, showing a gain improvement of ~2.5 dB with respect to a fishnet Soret metalens.

AB - Fresnel-zone plate lenses provide focusing performance while having low profile. Unfortunately, they usually display higher reflection losses than conventional dielectric lenses. Here, we demonstrate a low-profile Wood zone plate metalens based on the fishnet metamaterial working in a near-zero regime with an equivalent refractive index less than unity (nf = 0.51). The metalens is made of alternating dielectric and fishnet metamaterial concentric rings. The use of fishnet metamaterial allows reducing the reflections from the lens, while maintaining low profile, low cost and ease of manufacturing. The lens is designed to work at the W-band of the millimeter-waves range with a focal length FL = 22.8 mm (7.5 k0) aiming at antenna or radar system applications. The focusing performance of the lens along with its radiation characteristics in a lens antenna configuration have been studied numerically and confirmed experimentally, showing a gain improvement of ~2.5 dB with respect to a fishnet Soret metalens.

KW - fishnet metamaterial

KW - Fresnel zone plates

KW - Lens

U2 - 10.1051/epjam/2015014

DO - 10.1051/epjam/2015014

M3 - Article

VL - 2

SP - 1

EP - 6

JO - EPJ Applied Metamaterials

JF - EPJ Applied Metamaterials

SN - 2272-2394

M1 - 8

ER -