Low loss broadband polarization independent fishnet negative index metamaterial at 40 GHz
We present a polarization independent fishnet negative index metamaterial at 40 GHz. The structure is investigated theoretically using finite element method simulations and experimentally by measuring the amplitude and phase of the S-parameters. The experimental setup for free space measurements of...
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Veröffentlicht in: | Photonics and nanostructures 2012-06, Vol.10 (3), p.245-250 |
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creator | WISSEM SFAR ZAOUI KE CHEN VOGEL, Wolfgang BERROTH, Manfred |
description | We present a polarization independent fishnet negative index metamaterial at 40 GHz. The structure is investigated theoretically using finite element method simulations and experimentally by measuring the amplitude and phase of the S-parameters. The experimental setup for free space measurements of both transmission and reflection is hereby introduced. The internal properties are thereafter retrieved and show the double-negative behavior of the structure. This negative index metamaterial exhibits very high transmission (a0.13 dB), low reflection (a33.1 dB) and a high figure of merit (FOM = |Re(n)/Im(n)| = 42), where the real part of the refractive index is nearly a1 (Re(n) = a0.93) at 40 GHz. |
doi_str_mv | 10.1016/j.photonics.2011.02.003 |
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The structure is investigated theoretically using finite element method simulations and experimentally by measuring the amplitude and phase of the S-parameters. The experimental setup for free space measurements of both transmission and reflection is hereby introduced. The internal properties are thereafter retrieved and show the double-negative behavior of the structure. This negative index metamaterial exhibits very high transmission (a0.13 dB), low reflection (a33.1 dB) and a high figure of merit (FOM = |Re(n)/Im(n)| = 42), where the real part of the refractive index is nearly a1 (Re(n) = a0.93) at 40 GHz.</abstract><cop>Tokyo</cop><pub>Elsevier</pub><doi>10.1016/j.photonics.2011.02.003</doi><tpages>6</tpages></addata></record> |
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subjects | Exact sciences and technology Fundamental areas of phenomenology (including applications) Mathematical analysis Metamaterials Nanocomposites Nanomaterials Nanostructure Noise levels Optical materials Optics Photonic bandgap materials Physics Polarization Reflection |
title | Low loss broadband polarization independent fishnet negative index metamaterial at 40 GHz |
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