Opal-type photonic crystals: fabrication and application (Contributo in atti di convegno)

Type
Label
  • Opal-type photonic crystals: fabrication and application (Contributo in atti di convegno) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Andrea Chiappini, Guillaume Alombert-Goget, Cristina Armellini, Simone Berneschi, Brigitte Boulard, Massimo Brenci, Ilaria Cacciari, Claire Duverger-Arfuso, Sriram Guddala, Maurizio Ferrari, Enrico Moser, D. Narayana Rao, Giancarlo C. Righini (2010)
    Opal-type photonic crystals: fabrication and application
    in CIMTEC 2010, 12th International Ceramics Congress, International Conference “Disclosing Materials at Nanoscale”, Montecatini
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Andrea Chiappini, Guillaume Alombert-Goget, Cristina Armellini, Simone Berneschi, Brigitte Boulard, Massimo Brenci, Ilaria Cacciari, Claire Duverger-Arfuso, Sriram Guddala, Maurizio Ferrari, Enrico Moser, D. Narayana Rao, Giancarlo C. Righini (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Invited lecture Advances in Science and Technology 71 (2010) pp. 50-57 Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/AST.71.50 ISBN / ISBN-13: 3-908158-54-0 / 978-3-908158-54-7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Abstract. We report on fabrication and characterization of two different opal-like structures: (i) crystal exhibiting mechanochromism, i.e. change of colour when subjected to mechanical stress, composed of closely packed colloidal polystyrene particles (CPCP) embedded in a polydimethylsiloxane (PDMS) elastomeric matrix; (ii) metallo-dielectric systems (MDCS), based on the realization of inverse silica opal and following attachment of gold nanoparticles on the silica network of the inverse colloidal structure. Optical measurements, performed on the two structures, have demonstrated that: (i) when an horizontal strain is applied on the CPCP embedded in PDMS, a blue shift of the diffraction peak occurs as a function of the applied strain and (ii) MDCS have unique optical properties that combine the localized surface plasmon resonance (LSPR) of gold nanoparticles (Au NPs) with the photonic band gap features of colloidal crystal structures. Finally, preliminary results on MDCS used as SERS substrate evidence a higher increase of the Raman signal in respect to that observed for others metallic structures. (literal)
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  • Andrea Chiappini [1], Guillaume Alombert-Goget [1], Cristina Armellini [1,2], Simone Berneschi [3], Brigitte Boulard [4], Massimo Brenci [3], Ilaria Cacciari [3], Claire Duverger-Arfuso [4], Sriram Guddala [1,5,6], Maurizio Ferrari [1], Enrico Moser [1,5], D. Narayana Rao [6], Giancarlo C. Righini [3] [1] CNR-IFN, CSMFO Lab., Via alla Cascata 56/c, Povo, 38123 Trento, Italy. [2] FBK, Via Sommarive 18, Povo, 38123 Trento, Italy. [3] CNR-IFAC, Nello Carrara Institute of Applied Physics, MDF-Lab, Via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy. [4] Lab. LdOF, UMR CNRS 6010, Université du Maine, Av. O. Messiaen, 72085 Le Mans, France. [5] Dipartimento di Fisica, Università di Trento, via Sommarive 14, Povo, 38123 Trento Povo, Italy. [6] School of Physics, University of Hyderabad, Hyderabad 500046, India. (literal)
Titolo
  • Opal-type photonic crystals: fabrication and application (literal)
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