Sol–gel-derived photonic structures: fabrication, assessment, and application

Chiappini, Andrea; Chiasera, Alessandro; Berneschi, Simone; Armellini, Cristina; Carpentiero, Alessandro; Mazzola, Maurizio; Moser, E.; Varas, Stefano; Righini, Giancarlo C.; Ferrari, M.

doi:10.1007/s10971-011-2556-y

Cited by 56 publications

(26 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The periodic variation of the refractive index produces a band of photon frequencies which is not allowed to propagate within the ordered nanostructure, and its wavelength position can be ascribed using the modified Bragg Law: λ = 2 · d 111 · n e f f , where d 111 corresponds to the interplanar distance and n e f f is the effective refractive index (Chiappini et al 2011). In particular, as evidenced by the Bragg Law, is possible to tailor the properties of the system (e.g.…”

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

“…In particular, as evidenced by the Bragg Law, is possible to tailor the properties of the system (e.g. the position of the stop band) just modifying its structural features such as interplanar distance (Chiappini et al 2013(Chiappini et al , 2011 or effective refractive index. The variation of n e f f can occur changing the type of material that constitutes the network of the system (Chiappini et al 2011) or creating structures with different surface area (filling factor).…”

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

“…the position of the stop band) just modifying its structural features such as interplanar distance (Chiappini et al 2013(Chiappini et al , 2011 or effective refractive index. The variation of n e f f can occur changing the type of material that constitutes the network of the system (Chiappini et al 2011) or creating structures with different surface area (filling factor). In this last contest, the versatility of the sol-gel approach permits to realize both direct and inverse systems (Chiappini et al 2009).…”

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

“…In Fig. 4, there is reported a SEM image showing the top view of a direct structure constituted by silica nanoparticles (NPs) activated with Er 3+ ions in the external shell (Chiappini et al 2011). …”

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

See 3 more Smart Citations

Sol–gel-derived photonic structures handling erbium ions luminescence

Łukowiak

Chiappini²,

Chiasera³

et al. 2014

Opt Quant Electron

View full text Add to dashboard Cite

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 fabri- cation. This article presents some results obtained by the authors in the field of the sol-gelderived 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 Er 3+ -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.

show abstract

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

Section: Er 3+ -Activated Silica Colloidal Crystal Structuresmentioning

confidence: 99%

See 2 more Smart Citations

Sol–gel-derived photonic structures handling erbium ions luminescence

Łukowiak

Chiappini²,

Chiasera³

et al. 2014

Opt Quant Electron

View full text Add to dashboard Cite

show abstract

“…The possibility of starting from molecular precursors and elementary building blocks permits tailoring of structures at a molecular level and creating new materials with enhanced performances. Lately, fabrication of high performance optical sensors, waveguides, lasers and nano-structured materials was demonstrated [10]. The sol-gel process allows designing advanced photonic materials by creating hybrid materials which combine both organic and inorganic functionalities.…”

Section: Introductionmentioning

confidence: 99%

UV-curable glassy material for the manufacture of bulk and nano-structured elements

Gvishi¹,

Strum²,

Englander³

2012

J. Eur. Opt. Soc.-Rapid Publ.

View full text Add to dashboard Cite

An ultra violet (UV)-cured glassy material with less than 30 wt% organic residues was fabricated by the fast sol-gel method. The material presents high thermal stability, good optical quality and high adhesive strength. It is suitable for optical bonding and for manufacture of optical elements and micro-structured optical devices. Either soft-lithography or photo-lithography may be used for manufacture of the devices with either, thermal-curing (few hours) or UV-curing (few seconds). In this work we present the technology to fabricate optical elements at scales spanning the sub-micron to centimeter range. This technology enables mass-production of optical elements at low cost.

show abstract

Processing of Sol–Gel Films from a Top‐Down Route

Innocenzi

Malfatti

2015

The Sol‐Gel Handbook

View full text Add to dashboard Cite

Sol–gel-derived photonic structures: fabrication, assessment, and application

Cited by 56 publications

References 47 publications

Sol–gel-derived photonic structures handling erbium ions luminescence

Sol–gel-derived photonic structures handling erbium ions luminescence

UV-curable glassy material for the manufacture of bulk and nano-structured elements

Processing of Sol–Gel Films from a Top‐Down Route

Contact Info

Product

Resources

About