Now showing items 1-3 of 3

  • Every group is a maximal subgroup of the free idempotent generated semigroup over a band 

    Dolinka, I; Ruskuc, Nik (2013-05) - Journal article
    Given an arbitrary group G we construct a semigroup of idempotents (band) BG with the property that the free idempotent generated semigroup over BG has a maximal subgroup isomorphic to G. If G is finitely presented then ...
  • Evidence of guided resonances in photonic quasicrystal slabs 

    Ricciardi, Armando; Pisco, Marco; Cutolo, Antonello; Cusano, Andrea; O'Faolain, Liam; Krauss, Thomas F.; Castaldi, Giuseppe; Galdi, Vincenzo (2011-08-29) - Journal article
    We report on the experimental evidence of Fano-type guided resonances (GRs) in aperiodically-ordered photonic quasicrystal slabs. With specific reference to the Ammann-Beenker (8-fold symmetric, quasiperiodic) octagonal ...
  • Phonon-assisted radiative recombination of excitons confined in strongly anisotropic nanostructures 

    Dusanowski, L.; Musial, A.; Marynski, A.; Mrowinski, P.; Andrzejewski, J.; Machnikowski, P.; Misiewicz, J.; Somers, A.; Hoefling, S.; Reithmaier, J. P.; Sek, G. (2014-09-15) - Journal article
    The influence of acoustic phonons on the emission spectra of quantum dashes (QDashes), that are quasi-zero-dimensional epitaxial nanostructures with significant shape anisotropy, is investigated both experimentally and ...