All-optical and electro-optical control of Light in Soft Matter based Photonic Quasi Crystals (Abstract/Comunicazione in atti di convegno)

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Label
  • All-optical and electro-optical control of Light in Soft Matter based Photonic Quasi Crystals (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Alternative label
  • Lucia Petti, Rossella Capasso, Massimo Rippa and Pasquale Mormile, Vincenzo Caligiuri, Luciano De Sio and Cesare Umeton (2013)
    All-optical and electro-optical control of Light in Soft Matter based Photonic Quasi Crystals
    in 11th Mediterrenean Workshop and Topical Meeting "Novel Optical Materials and Applications" (NOMA 2013), Cetraro-Italy, June 10-15, 2013
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lucia Petti, Rossella Capasso, Massimo Rippa and Pasquale Mormile, Vincenzo Caligiuri, Luciano De Sio and Cesare Umeton (literal)
Note
  • Abstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR; Department of Physics - University of Calabria Centre of Excellence for the Study of Innovative Functional Materials (literal)
Titolo
  • All-optical and electro-optical control of Light in Soft Matter based Photonic Quasi Crystals (literal)
Abstract
  • Metamaterials (MTMs) and Photonic Quasi-Crystals (PQCs) have attracted the attention of the scientific community in the last few years due to their capability to control the electromagnetic (EM) field in an unusual way. By exploiting MTMs and PQCs, it is possible to realize man-made structures characterized by a selective EM response, which can be also controlled by combining the distinctive properties of reconfigurable soft-matter. Here, we report on our recent efforts devoted to combine nanostructured Thue Morse PQCs [1] and photo/electro responsive Nematic Liquid Crystals (NLCs) [2]. In details, by means of a surface functionalization strategy, we have in-plane aligned NLCs overlaying a Thue Morse PQCs made on a conductive glass substrate; therefore, white light propagating in the glass substrate is outcoupled from the PQC according to its geometrical parameters. Consequently, the extracted single-mode light source can be both all-optically and electro-optically finely enhanced by controlling the refractive index value of the NLC. In our opinion, these results represent a breakthrough in the realization of innovative MTMS based active photonic devices. [1] M. Rippa, R. Capasso, P. Mormile, S. De Nicola, M. Zanella, L. Manna, G. Nenna and L. Petti, Bragg Extraction of Light in 2D Photonic Thue Morse Quasicrystal patterned in Active CdSe/CdS Nanorods-Polymer Nanocomposites, Nanoscale, 5, 331 (2013). [2] L. De Sio, L. Ricciardi, S. Serak, M. La Deda, N. Tabiryan, C. Umeton \"Photo-sensitive liquid crystals for optically controlled diffraction gratings\" J. Mater. Chem. 22, 6669 (2012) (literal)
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