A slow light fishnet-like absorber in the millimeter-wave range

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A slow light fishnet-like absorber in the millimeter-wave range. / Navarro-Cia, Miguel; Torres, V.; Beruete, M.; Sorolla, M.

In: Progress In Electromagnetics Research, Vol. 118, 2011, p. 287-301.

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Navarro-Cia, Miguel ; Torres, V. ; Beruete, M. ; Sorolla, M. / A slow light fishnet-like absorber in the millimeter-wave range. In: Progress In Electromagnetics Research. 2011 ; Vol. 118. pp. 287-301.

Bibtex

@article{c4f3f11ed84440179a9dd19e165ca959,
title = "A slow light fishnet-like absorber in the millimeter-wave range",
abstract = "A novel route to achieve a narrowband free-space electromagnetic absorber in any range of the spectrum based on stacked subwavelength hole arrays is proposed. The absorption is obtained by means of a slow light mode inside a fishnet-like engineered structure and exploiting the unavoidable misalignments and bucklings of the free-standing stack. An incoming pulse becomes permanently trapped in the structure due to the near zero group velocity which causes an enhancement of the radiation-structure interaction that leads to a huge increment of losses arising from the finite conductivity of the metal as well as arrangement tolerances. This approach is studied not only by simulation but also experimentally under normal incidence at millimeter wavelengths. Moreover, a basic grasp about the angular dependence of the structure is given by analyzing the 2D dispersion diagram. It shows that this scheme may also display high absorption under oblique incidence for s-polarization (or TE-polarization), whereas p-polarization (TM-polarization) would degrade its performance.",
author = "Miguel Navarro-Cia and V. Torres and M. Beruete and M. Sorolla",
year = "2011",
language = "English",
volume = "118",
pages = "287--301",
journal = "Progress In Electromagnetics Research",
issn = "1559-8985",
publisher = "Electromagnetics Academy",

}

RIS

TY - JOUR

T1 - A slow light fishnet-like absorber in the millimeter-wave range

AU - Navarro-Cia, Miguel

AU - Torres, V.

AU - Beruete, M.

AU - Sorolla, M.

PY - 2011

Y1 - 2011

N2 - A novel route to achieve a narrowband free-space electromagnetic absorber in any range of the spectrum based on stacked subwavelength hole arrays is proposed. The absorption is obtained by means of a slow light mode inside a fishnet-like engineered structure and exploiting the unavoidable misalignments and bucklings of the free-standing stack. An incoming pulse becomes permanently trapped in the structure due to the near zero group velocity which causes an enhancement of the radiation-structure interaction that leads to a huge increment of losses arising from the finite conductivity of the metal as well as arrangement tolerances. This approach is studied not only by simulation but also experimentally under normal incidence at millimeter wavelengths. Moreover, a basic grasp about the angular dependence of the structure is given by analyzing the 2D dispersion diagram. It shows that this scheme may also display high absorption under oblique incidence for s-polarization (or TE-polarization), whereas p-polarization (TM-polarization) would degrade its performance.

AB - A novel route to achieve a narrowband free-space electromagnetic absorber in any range of the spectrum based on stacked subwavelength hole arrays is proposed. The absorption is obtained by means of a slow light mode inside a fishnet-like engineered structure and exploiting the unavoidable misalignments and bucklings of the free-standing stack. An incoming pulse becomes permanently trapped in the structure due to the near zero group velocity which causes an enhancement of the radiation-structure interaction that leads to a huge increment of losses arising from the finite conductivity of the metal as well as arrangement tolerances. This approach is studied not only by simulation but also experimentally under normal incidence at millimeter wavelengths. Moreover, a basic grasp about the angular dependence of the structure is given by analyzing the 2D dispersion diagram. It shows that this scheme may also display high absorption under oblique incidence for s-polarization (or TE-polarization), whereas p-polarization (TM-polarization) would degrade its performance.

UR - http://www.scopus.com/inward/record.url?scp=79960670236&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:79960670236

VL - 118

SP - 287

EP - 301

JO - Progress In Electromagnetics Research

JF - Progress In Electromagnetics Research

SN - 1559-8985

ER -