Past Events

Seminar Announcement: Charlotte Hurel

posted Nov 5, 2018, 8:14 AM by Stefano Varas   [ updated Nov 5, 2018, 8:14 AM ]

Announcement
Monday, 5 November 2018, 11:30
Sala Grande Palazzina C via alla Cascata 56/C

"Capping of marine sediments with valuable industrial by-­products: evaluation of inorganic pollutants immobilization"

Charlotte Hurel
Université Côte d’Azur, Institut de physique de Nice,
Parc Valrose, 06108 Nice Cedex 2, France

Abstract
In-situ capping of polluted sediment is considered as an inexpensive and effective treatment technology to immobilize contaminants in a short time. In this remediation technique sediments are capped by placing a layer of sand, clean sediment or other materials over sediments in order to mitigate risk. During this talk, I will present a bench scale laboratory experiment performed in aquariums to evaluate the effects of low cost industrial by products (bauxaline, steel slag, and their composite) used as capping agents to limit Cd, Zn, As, and Cr mobility from an artificially contaminated marine sediment.

Seminar Announcement: Franck Mady

posted Nov 5, 2018, 8:13 AM by Stefano Varas   [ updated Nov 5, 2018, 8:13 AM ]

Announcement
Monday, 5 November 2018, 10:00
Sala Grande Palazzina C via alla Cascata 56/C

"Role of some rare-earth dopants (Yb, Er, Yb/Ce) in the mechanism of radiation-induced degradation of aluminosilicate-core optical fibers"

Franck Mady
Université Côte d’Azur, CNRS, INФNI, UMR7010,
Parc Valrose, 06108 Nice Cedex 2, France

Abstract
This talk proposes a systematic review of the defects created in silica, in aluminosilicate, and in Yb-, Er- and Yb,Ce-doped silicate or aluminosilicate glasses under ionizing irradiation. The mechanisms of radiation-induced attenuation (RIA) development and annealing, including that of the RIA mitigation by Ce, are also presented. The reduction of rare-earth ions is always observed under irradiation, by electron trapping, accompanied of course by the trapping of holes, preferably at Al-substituted thetrahedral sites. Annealing mechanisms involve the recombination of holes with reduced RE ions, with emission of the charge-transfer relaxation of Yb3+ ions (regardless of co-doping) or that of Er3+ ions. Ce4+ ions are not restored by recombination, but by electron release at moderate temperature (below 500 °C).

Grande finale del progetto “Esploratori della Fotonica”

posted Oct 12, 2018, 2:06 AM by Stefano Varas   [ updated Oct 12, 2018, 2:10 AM ]


Grande finale del progetto “Esploratori della Fotonica” con il concorso vinto dagli studenti dell’ Istituto “Alcide Degasperi” di Borgo Valsugana guidati dalla prof.ssa Monica Ropele con l’esperimento “Il mondo della luce e la luce nel mondo”

Giovedì 11 ottobre gli alunni dei licei Da Vinci e Galilei di Trento, Rosmini di Rovereto e Degasperi di Borgo Valsugana si sono sfidati a suon di esperimenti sulla Luce presso il MuSe.

Il concorso ha concluso un percorso durato un anno svolto nell’ambito del progetto ESFO, coordinato da Andrea Chiappini, ricercatore dell’Istituto di Fotonica e Nanotecnologie IFN-CNR e finanziato dalla Fondazione Caritro.

Il progetto ha visto protagonisti insegnanti e studenti e si è articolato in workshop di formazione per gli insegnanti all’utilizzo di nuove metodologie didattiche e in seminari tematici e visite programmate presso i laboratori di IFN-CNR e FBK, partner di progetto, con l’obiettivo di approfondire concetti teorici e confrontarsi con le tecnologie impiegate nel mondo della ricerca.

Oltre ad aver visto premiato il lavoro svolto con i propri insegnanti, il pomeriggio al MuSe è stato per i ragazzi occasione di scambio di esperienze e di confronto di idee e risultati, da presentare ad altri istituti scolastici, alle famiglie e ad un pubblico generico.

Il gruppo di studenti vincitore è stato premiato con il kit didattico We Lab, offerto dalla ditta DNA Phone, che rappresenta una soluzione innovativa per la misura di parametri chimici e biologici mediante l’uso di dispositivi ottici connessi a piattaforme smart e mobile e con un trofeo offerto dalla Società Italiana di Ottica e Fotonica (SIOF).

http://esfo.fbk.eu/
http://esfo.fbk.eu/attivita/fase-concorsuale/

D-Photon 2018

posted Oct 5, 2018, 1:47 AM by Stefano Varas

http://d-photon.fbk.eu/

1st International Conference on Dielectric Photonic Devices and Systems Beyond Visible
held in Bari - Italy
1-2 October, 2018

D-Photon 2018 is the first edition of an International Conference covering a wide range of research topics concerning the design and fabrication techniques of optical and photonics devices and systems made of dielectric materials. In particular, the spectral range beyond visible is considered for its promising application in many fields.

More detailed information can be found on the webpage:
http://d-photon.fbk.eu/

Notte dei Ricercatori 2018

posted Oct 5, 2018, 1:32 AM by Stefano Varas   [ updated Oct 5, 2018, 1:44 AM ]


28 settembre 2018 a partire dalle 17.00
MUSE - Museo delle Scienze
Trento - Corso del Lavoro e della Scienza, 3

In occasione della Notte dei Ricercatori, sarà presente anche CNR-IFN alla postazione n.27 al primo piano del Muse.

L'argomento trattato sarà "MANIPOLARE LA LUCE CON IL VETRO"
Come fabbricare e sfruttare sottili strati di vetro.
Scopri con i ricercatori di FBK-CNR come costruire e caratterizzare sottilissimi strati di vetro, utili per svariate applicazioni: dalle sorgenti di luce per le telecomunicazioni alla sensoristica per onde acustiche, fino ai filtri ottici.

Vieni a trovarci

La persona di riferimento è Alessandro Chiasera


POSTER: ResearchDay-POSTER-A1.pdf


https://photos.app.goo.gl/49qxUUfYGSbJQCzLA

Photo Gallery, LA NOTTE dei RICERCATORI 2018



https://event.unitn.it/nottedeiricercatori2018/nottedeiricercatori2018.html

Seminar Announcement: Michael Scalora

posted Sep 17, 2018, 5:12 AM by Stefano Varas   [ updated Sep 17, 2018, 5:13 AM ]

Announcement
Thursday, 13 September 2018, 11:30
Sala Grande Palazzina C via alla Cascata 56/C

"Optics at the NANOSCALE: An Attempt at a Comprehensive Analysis of Surface Harmonic Generation...and more"

Michael Scalora
Charles M. Bowden Research Facility, AMRDEC, US Army RDECOM,
RDMR-WDS-R, Bldg. 7804 Redstone Arsenal, AL 35898

Abstract
We present a study of linear and nonlinear optical effects that occur when light interacts with metallic surfaces and generic structures with nanometer-scale features. Our model suggests that the nonlinear optical analysis of metals, conductive oxides, nano-antennas, meta-surfaces, etc. should be performed by including nonlocal effects (viscosity and pressure of free electrons); linear and nonlinear contributions of bound (inner-core) electrons to the dielectric constant; linear and nonlinear quantum tunneling currents if gaps between nanoparticles is on the nanometer and sub-nanometer scale; and conditions generally reflective of discontinuous free electron densities. We use a modified hydrodynamic model to evaluate harmonic generation from a gold mirror, where epsilon- near-zero conditions may be found and exploited, and from semiconductors like GaAs and GaP.

Seminar Announcement: Angela Seddon

posted Sep 13, 2018, 12:44 AM by Stefano Varas   [ updated Sep 13, 2018, 12:44 AM ]

Announcement
Tuesday, 11 September 2018, 15:00
Sala Grande Palazzina B via alla Cascata 56/C

"Towards rare earth doped mid-infrared fibre lasers"

Angela Seddon
Chair of Inorganic Materials. Head of Mid-Infrared Glasses Group, GGIEMR, Faculty of Engineering.
University of Nottingham, UK

Abstract
The progress made towards mid-infrared (MIR) fibre lasers will be described. Despite ongoing work since the late 1990s, fibre lasing above 4 microns wavelength in the MIR region has not yet been demonstrated. Current modelling has not uncovered all of the reasons for this lack of success. Photoluminescence and long photoluminescent lifetimes have been observed for rare earth ions such as Dy(III), Pr(III), Tb(III) and Ce(III) doped into selenide chalcogenide-glasses. Long PL lifetimes in small-core fibre will be shown. The underlying problem of impurities in the glass host causing extrinsic absorption has been modelled to reveal the true rare earth ion absorption cross-sections. The possibility of these unwanted impurities causing non-radiative depopulation of rare earth ion excited states will be addressed. In addition, the possibility of interference in the excited state dynamics of rare earth ions of the WAT (weak absorption tail) will also be introduced.

Seminar Announcement: Patrice Salzenstein

posted Sep 13, 2018, 12:43 AM by Stefano Varas   [ updated Sep 13, 2018, 12:43 AM ]

Announcement
Tuesday, 11 September 2018, 10:30
Sala Grande Palazzina C via alla Cascata 56/C

"Brillouin light scattering for the characterization of bulk and surface elastic waves"

Patrice Salzenstein
Institut FEMTO-ST 15B Avenue des Montboucons 25030 BESANÇON CEDEX,
France

Abstract
Brillouin scattering reveals acoustic or spin-wave frequencies in the microwave frequency domain. Brillouin light scattering (BLS) setup deals with the detection and analysis of laser light scattered by fluctuations of refracting index in a medium. It consists in analysis of the refracted light emitted by a material. Tandem Fabry–Perot interferometer produces peaks shifted from the frequency of the laser to characteristic frequencies depending on the material. As a way of calibration, we can characterized different bulk materials such as for example glass, PMMA, nylon, polypropylene, Lithium-aluminosilicate glass ceramic or thin layers. From BLS we can deduce parameters of the material like phase velocity of transverse and longitudinal waves.

Seminar Announcement: Alessandro Lauria

posted Sep 5, 2018, 8:07 AM by Stefano Varas   [ updated Sep 5, 2018, 8:07 AM ]

Announcement
Monday, 3 September 2018, 10:30
Sala Grande Palazzina B via alla Cascata 56/C

"Structure-function relationship in optical nanomaterials"

Alessandro Lauria
Laboratory for Multifunctional Materials, Swiss Federal Institute of Technology (ETH Zürich),
Zürich, Switzerland

Abstract
Several properties of nanomaterials are related to their crystallinity, size and composition. Many of these structural parameters can be pre-determined through chemical choices operated during their synthesis. Moreover, the surface features of nanoparticles govern their interaction with the environment, setting the bases for their implementation into functional composites and biological systems. I will discuss some of the chemical parameters which enable control over optical properties of nanoparticles, as well as on their further processing toward optical materials at the macroscale.

SMS 2018

posted Aug 2, 2018, 1:47 AM by Stefano Varas


7th International Summer School on Smart Materials & Structures

This year the ​​International Summer School on Smart Materials & Structures is held in Trento, Italy, in the period July 25-28, 2018. The scope of the school is to provide an overview of smart technologies from a cross-disciplinary perspective with special focus on optical sensors, wireless sensor networks, smart materials, nano- and micro-technologies, NDT evaluation and decision making.

The school lecturers include:
Branko Glisic, Princeton University, USA;
Dionisio Bernal, Northeastern University, USA;
Wieslaw Ostachowicz, Polish Academy of Sciences, Poland;
Marcus Perry, University of Strathclyde, UK;
Yang Wang, Georgia Institute of Technology, USA

You can find more information on the school program at: http://event.unitn.it/smartstructures2018

Who should attend
The school addresses graduate students and postdocs pursuing research in the field of smart materials and structures.

Registration
The registration fee is €400.00. Register by July 1, 2018, at http://events.unitn.it/en/smartstructures2017/registration

Scholarships
The school offers 5 scholarships covering the registration fee ​​to support the participation of international students. Scholarship application deadline is June 17, 2018. To apply, please visit the school website at http://event.unitn.it/smartstructures2018

Contact
For any further help needed, please contact me or visit the school website at http://event.unitn.it/smartstructures2018

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