Blar i NTNU Open på forfatter "Nistad, Bertil"

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    • Metamaterials and periodic structures in optics 

      Nistad, Bertil (Doktoravhandlinger ved NTNU, 1503-8181; 2009:134, Doctoral thesis, 2009)
      This thesis studies periodic structures in optics, ranging from metamaterials, that are subwavelength structures, to periodic claddings of waveguides where the lattice parameter is comparable to the wavelength. The work ...

    • Simulations and realizations of active right-handed metamaterials with negative refractive index 

      Nistad, Bertil; Skaar, Johannes (Journal article; Peer reviewed, 2007)
      The theory of determining the sign of the refractive index in active materials is discussed. Animations of numerical simulations are presented, supporting the claim that negative refractive index may occur in right-handed ...