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Title: Glass-based confined structures enabling light control

When a luminescent ion is confined in a system characterized by one or more specific properties such as spatial size, geometrical dimension and shape, refractive index, local crystal field, cut-off vibrational energy and so on, it's possible to control its emission. The control of branching ratios as a function of the composition, the luminescence enhancement induced by a photonic crystal, or the laser action in a microresonator, are well known examples of light control. Photonic glass-based structures are extremely viable systems to exploit the above mentioned properties and in our research team we have successfully fabricated luminescent photonic structures by different techniques, including sol-gel, rf sputtering, drawing, melting, and physical vapour deposition. Here we will discuss some of them with the aim to make the reader aware of the chemical-physical properties related to each specific system. We will demonstrate that glass ceramic waveguides in some cases present superior spectroscopic properties in respect to the parent glass, that compositional properties can play a positive role in reducing luminescence quenching and in developing novel planar waveguides and fibers, that colloids allow to obtain high internal quantum efficiency and that photonic crystals, microcavities and microresonators can enable the handling of the rare earthmore » luminescence. Finally, the pros and cons of the systems and of the different techniques employed for their fabrication will be discussed and some perspectives concerning the glass photonics will be proposed looking at both possible applications and investigation of physical properties.« less
Authors:
; ;  [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [3] ;  [8] ;  [9] ; ;  [10] ;  [3] ;  [10] ;  [11] ;
  1. IFN–CNR CSMFO Lab., and FBK Photonics Unit via alla Cascata 56/C Povo, 38123 Trento (Italy)
  2. Institute of Low Temperature and Structure Research PAS, Okolna St. 2, 50-422 Wroclaw (Poland)
  3. (Italy)
  4. Institut Ruđer Bošković, Bijenička cesta 54, 10000 Zagreb (Croatia)
  5. IMMM, CNRS Equipe Fluorures, Université du Maine, Av. Messiaen, 72085 Le Mans cedex 9 (France)
  6. Department of Power Engineering, Photonics and Lighting Technology, Bialystok University of Technology, Wiejska Street 45D, 15-351 Bialystok (Poland)
  7. Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Via Giovanni Pascoli, 70/3, 20133, Milan (Italy)
  8. FBK -CMM, ARES Unit, 38123 Trento (Italy)
  9. College of Engineering, Swansea University, Singleton Park, SA2 8PP, Swansea (United Kingdom)
  10. IFAC - CNR, MiPLab., 50019 Sesto Fiorentino (Italy)
  11. Politecnico di Milano, Dipartimento di Fisica and Istituto di Fotonica e Nanotecnologie CNR, Piazza Leonardo da Vinci 32, 20133 Milano (Italy)
Publication Date:
OSTI Identifier:
22391509
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1657; Journal Issue: 1; Conference: PERFIK 2014: National Physics Conference 2014, Kuala Lumpur (Malaysia), 18-19 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CERAMICS; COLLOIDS; CRYSTAL FIELD; CRYSTALS; FIBERS; GLASS; LUMINESCENCE; MELTING; PHYSICAL VAPOR DEPOSITION; QUANTUM EFFICIENCY; RARE EARTHS; REFRACTIVE INDEX; SOL-GEL PROCESS; SPUTTERING; VISIBLE RADIATION