Glass-based Photonic Crystals: from Fabrication to applications (Articolo in rivista)

Type
Label
  • Glass-based Photonic Crystals: from Fabrication to applications (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.4028/www.scientific.net/AST.90.121 (literal)
Alternative label
  • A. Chiappini, A. Chiasera, C. Armellini, A. Carpentiero, A. Lukowiak, M. Mazzola, S. Normani, D. Ristic, S. Valligatla, I. Vasilchenko, S. Varas, G.C. Righini and M. Ferrari (2014)
    Glass-based Photonic Crystals: from Fabrication to applications
    in Advances in Science and Technology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Chiappini, A. Chiasera, C. Armellini, A. Carpentiero, A. Lukowiak, M. Mazzola, S. Normani, D. Ristic, S. Valligatla, I. Vasilchenko, S. Varas, G.C. Righini and M. Ferrari (literal)
Pagina inizio
  • 121 (literal)
Pagina fine
  • 126 (literal)
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  • 90 (literal)
Rivista
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  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
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  • A. Chiappini1, A. Chiasera1, C. Armellini1,2, A. Carpentiero1, A. Lukowiak3, M. Mazzola1, S. Normani1, D. Ristic4, S. Valligatla1,6, I. Vasilchenko1,5, S. Varas1, G.C. Righini7,8 and M. Ferrari1,8 1IFN - CNR CSMFO Lab., Via alla Cascata 56/C Povo, 38123 Trento, Italy 2FBK Center for Materials & Microsystems, via Sommarive 18, Povo 38123 Trento, Italy 3Institute of Low Temperature and Structure Research, PAS, Okolna 2, 50-422 Wroclaw, Poland 4Ruder Bo?kovi? Institute Bijeni?ka cesta 54 10000 Zagreb, Croatia 5Dipartimento di Fisica, Università di Trento, via Sommarive 14, Povo, 38123 Trento, Italy 6School of Physics, University of Hyderabad, Hyderabad 500046, India 7IFAC - CNR, MiPLa.b, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy 8Museo Storico della Fisica e Centro di Studi e Ricerche Enrico Fermi, P.zza Viminale 1, 00184 Roma, Italy (literal)
Titolo
  • Glass-based Photonic Crystals: from Fabrication to applications (literal)
Abstract
  • We report on the fabrication and on the assessment of the properties of two glass-based photonic crystals (PhCs) obtained using alternative approaches such as rf-sputtering and sol-gel techniques. (i) By means of rf-sputtering a one-dimensional dielectric photonic crystal constituted by an Er3+-doped SiO2 active layer inserted between two Bragg reflectors consisting of 10 pairs of SiO2/TiO2 layers has been realized. Near infrared transmittance spectra evidenced the presence of a stop band from 1500 to 2000 nm with a cavity resonance centered at 1749 nm. Intensity enhancement and narrowing of the emission band of Er3+ ions, due to the cavity effect have been observed and a cavity quality factor of 890 has been achieved. (ii) Through chemical route a 3D colloidal crystal based on polystyrene (PS) nanoparticles (NPs) embedded in elastomeric matrix has been realized. In the specific has been shown that the structure can produce a variation of its color applying different organic solvents that can be also easily observed by the naked eye. Optical measurements have evidenced a red shift of the diffraction peak as a function of the solvents applied. This feature has been exploited in order to create a sensitive material showing high sensitivity and reversibility of the signal change. (literal)
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