Sorolla Ayza, Mario

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https://academica-e.unavarra.es/handle/2454/50055

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Sorolla Ayza

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Mario

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Ingeniería Eléctrica y Electrónica

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751225

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484

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2008 - 20092
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Author: Aznabet, Mariem ×

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    PublicationOpen Access
    Electroinductive waves role in left-handed stacked complementary split rings resonators
    (Optical Society of America, 2009) Beruete Díaz, Miguel; Aznabet, Mariem; Navarro Cía, Miguel; El Mrabet, O.; Falcone Lanas, Francisco; Aknin, N.; Essaaidi, M.; Sorolla Ayza, Mario; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
    In this letter it is presented a Left-Handed Metamaterial design route based upon stacked arrays of screens made of complementary split rings resonators under normal incidence in the microwave regime. Computation of the dispersion diagram highlights the possibility to obtain backward waves provided the longitudinal lattice is small enough. The experimental results are in good agreement with the computed ones. The physics underlying the Left-Handed behavior is found to rely on electroinductive waves, playing the mutual capacitive coupling the major role to explain the phenomenon. Our route to Left-Handed metamaterial introduced in this paper based on stacking CSRRs screens can be scaled to millimeter and terahertz for future applications.
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    PublicationOpen Access
    Polypropylene-substrate-based SRR- and CSRR-metasurfaces for submillimeter waves
    (Optical Society of America, 2008) Aznabet, Mariem; Navarro Cía, Miguel; Kuznetsov, Sergei A.; Gelfand, A. V.; Fedorinina, N. I.; Goncharov, Yu. G.; Beruete Díaz, Miguel; El Mrabet, O.; Sorolla Ayza, Mario; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
    In this paper it is presented the fabrication of low loss millimeter wave metamaterials based on patterning on polypropylene substrates by conventional contact photolitography. We study numerically and experimentally the transmission and reflection properties of two dimensional arrays of split ring resonators (SRRs), or metasurfaces, and their complementary structure (CSRRs) for co- and cross-polarization excitations up to submillimeter frequencies under normal incidence conditions. The obtained results suggest the possibility of scaling them at terahertz frequencies based on this substrate where other lossy substrates degrade the resonators quality. Left-handed metamaterials derived from these SRRs and CSRRs metasurfaces could be feasible.