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Sol–gel-derived photonic structures handling erbium ions luminescence

Lukowiak, Anna; Chiappini, Andrea; Chiasera, Alessandro; Ristić, Davor; Vasilchenko, Iustina; Armellini, Christina; Carpentiero, Alessandro; Varas, Stefano; Speranza, Giorgio; Taccheo, Stefano; Pelli, Stefano; Battisha, I. K.; Righini, Giancarlo Cesare; Strek, W.; Ferrari, Maurizio (2014) Sol–gel-derived photonic structures handling erbium ions luminescence. Optical and Quantum Electronics, 47 (1). pp. 117-124. ISSN 0306-8919

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The sol–gel technique is a very flexible, relatively simple, and low-cost method to fabricate many different innovative photonic structures characterized by specific functionalities. During synthesis, starting from the molecular level, compounds or composites with well controlled composition can be obtained as thin films, powders or monoliths. These materials can be used to prepare such structures as waveguides, photonic crystals, coatings, and bulk glasses including spheres, rings and other geometries exploited in optical resonators fabrication. This article presents some results obtained by the authors in the field of the sol–gel-derived photonic structures. To emphasise the scientific and technological interest in this kind of systems and the versatility of the sol–gel route, the glass-based nano and micrometer scale range systems are discussed. Particularly, the following systems are described: silica–hafnia glass and glass–ceramic planar waveguides, nanosized tetraphosphates, and silica colloidal crystals. The attention is focused on the spectroscopic properties of Er3+ -activated materials that due to the light emission can be used in the integrated optics area covering application in sensing, biomedical diagnostic, energy conversion, telecommunication, lighting, and photon management.

Item Type: Article
Uncontrolled Keywords: waveguide ; photonic crystal ; nanocrystals ; spectroscopy ; structure
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Materials Physics
Depositing User: Davor Ristić
Date Deposited: 06 Dec 2018 15:23
DOI: 10.1007/s11082-014-9954-7

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