Now showing items 1-5 of 5

    • Hedgehog subwavelength hole arrays: control over the THz enhanced transmission 

      Navarro Cía, Miguel Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Beruete Díaz, Miguel Upna Orcid (Institute of Physics Publishing, 2013)   Artículo / Artikulua  OpenAccess
      By backing or sandwiching a holey metal layer with or between isotropic dielectric slabs, additional peaks of transmission within the long-wavelength regime arise as a result of the induced transverse magnetic (TM) or ...
    • Negative reflection, negative refraction and ray displacements in biaxial absorbing media, In4Se3 

      Alberdi Odriozola, Coro Upna Orcid; Diñeiro Rubial, José Manuel Upna Orcid; Hernández Salueña, Begoña Upna Orcid; Sáenz Gamasa, Carlos Upna Orcid (Taylor & Francis, 2019)   Artículo / Artikulua  OpenAccess
      We show the existence of negative reflection and negative refraction in a slab of biaxial absorbing medium In 4Se3 placed between two isotropic media. We find the limiting angle of incidence in the slab for these phenomena ...
    • Negative refraction in a prism made of stacked subwavelength hole arrays 

      Navarro Cía, Miguel Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Sorolla Ayza, Mario Upna; Campillo, Igor (Optical Society of America, 2008)   Artículo / Artikulua  OpenAccess
      Metamaterial structures are artificial materials that show unconventional electromagnetic properties such as negative refraction index, perfect lenses, and invisibility. However, losses are one of the big challenges to be ...
    • Negative refraction through an extraordinary transmission left-handed metamaterial slab 

      Beruete Díaz, Miguel Upna Orcid; Navarro Cía, Miguel Upna Orcid; Sorolla Ayza, Mario Upna; Campillo, Igor (American Physical Society, 2009)   Artículo / Artikulua  OpenAccess
      In this work we present numerical and experimental results of negative refraction through a negative index metamaterial based on miniaturized extraordinary transmission stacked subwavelength hole arrays, also known as ...
    • Planoconcave lens by negative refraction of stacked subwavelength hole arrays 

      Beruete Díaz, Miguel Upna Orcid; Navarro Cía, Miguel Upna Orcid; Sorolla Ayza, Mario Upna; Campillo, Igor (Optical Society of America, 2008)   Artículo / Artikulua  OpenAccess
      This work presents the design of a planoconcave parabolic negative index metamaterial lens operating at millimeter wavelengths fabricated by using stacked subwavelength hole arrays. A staircase approximation to the ideal ...