\"Opal-based photonic crystals heterostructures\" (Articolo in rivista)

Type
Label
  • \"Opal-based photonic crystals heterostructures\" (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.4236/opj.2012.223031 (literal)
Alternative label
  • A.Chiappini, C. Armellini, N. Bazzanella, G.C. Righini, M. Ferrari (2012)
    "Opal-based photonic crystals heterostructures"
    in Optics and photonics journal (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A.Chiappini, C. Armellini, N. Bazzanella, G.C. Righini, M. Ferrari (literal)
Pagina inizio
  • 206 (literal)
Pagina fine
  • 210 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 2 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Photonic Materials and Devices, Carrara Institute of Applied Physics - CNR Florence, Italy; CNR-IFN CSMFO Lab, Via alla Cascata 56/C, Povo, 38123 Trento, Italy; Department of Physics, University of Trento, Via Sommarive 14 Povo, 38123 Trento, Italy (literal)
Titolo
  • \"Opal-based photonic crystals heterostructures\" (literal)
Abstract
  • The fabrication of photonic crystal heterostructures is important for the applications in the fields of integrated photonic crystal chips and multi-frequency optical Bragg filters or mirrors; here we report on the fabrication and characterization of opal-based photonic crystal heterostructures. These heterostructures are created by using multilayer deposition of silica and polystyrene spheres. In the specific the fabricated structures involved both different lattice constant and di-electric function. Scanning electron microscopy (SEM) and VIS-NIR transmittance and reflectance spectroscopy are used to characterize the systems. The SEM images show good ordering of the two-layer colloidal crystals constituting the heterostructures. The transmittance and reflectance spectra measured from the (111) plane of the heterostructure show that the composite colloidal photonic crystals have double photonic stop bands that matches the stop bands of the individual photonic crystals. This behaviour can be seen as a superposition of the properties of each individual layer. (literal)
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