Past Events

Seminar Announcement: Maria Aymerich

posted May 31, 2017, 2:33 AM by Stefano Varas   [ updated May 31, 2017, 2:33 AM ]

Announcement
Monday, 29 May 2017, 15:00
Sala Grande Palazzina B via alla Cascata 56/C

"Laser microstructuring of materials for biomedical applications"

Maria Aymerich
Dep. Fisica Applicata, Universidade de Santiago de Compostela
A Coruña, Spain
maria.aymerich@usc.es

Abstract
In this talk, microstructuring of different materials with laser for biomedical applications will be presented. Firstly, we will comment how endothelial cell behaviour can be altered by modifying the surface topography of biocompatible materials using the Talbot effect and a microlens array. Secondly, the fabrication and biological validation of a microchip for capturing circulating tumour cells will be shown. Finally, we will focus on the design and fabrication of preclinical devices that mimic large blood vessels for performing flux experiments to study cardiovascular pathologies. The biocompatibility of the device will be presented as well as a study of different sol-gel coatings to enhance the lifetime of these devices.

Siamo Europa

posted May 31, 2017, 2:24 AM by Stefano Varas   [ updated May 31, 2017, 2:31 AM ]

https://siamoeuropa.provincia.tn.it/

Da venerdì 12 maggio ore 09:00 a domenica 14 maggio ore 18:00
Trento, piazza Fiera, 12-13-14 maggio 2017

A 60 anni dai Trattati di Roma l'annuale Festa dell'Europa si dà una nuova veste. Dal 12 al 14 maggio in piazza Fiera si svolgerà "Siamo Europa", una tre giorni dedicata all'Unione europea: incontri, spettacoli, libri, presentazione di progetti...e altro ancora.

Sarà presente anche CNR-IFN con uno stand informativo, che presentarà il suo progetto di ricerca cofinanziato dal programma europeo ERANet-LAC 2nd Joint Call on Research and Innovation.
RECOLA - Recovery of lanthanides and other metals from WEEE

Vieni a trovarci



https://goo.gl/photos/JivdwtYCTHaYm27y5

Photo Gallery, RECOLA - Siamo Europa - 12-13-14 May 2017

POSTER



https://siamoeuropa.provincia.tn.it/

http://recola.fbk.eu/

Seminar Announcement: Anna Lukowiak

posted May 3, 2017, 1:46 PM by Stefano Varas   [ updated May 3, 2017, 1:46 PM ]

Announcement
Tuesday, 2 May 2017, 15:00
Sala Grande Palazzina B via alla Cascata 56/C

"Recovery of lanthanides from WEEE"

Anna Lukowiak
Institute of Low Temperature and Structure Research, Polish Academy of Sciences
Wroclaw, Poland
A.Lukowiak@int.pan.wroc.pl

Abstract
Due to the demand of policies of many countries, there is a strong need to significantly reduce the number of waste electrical and electronic equipment (WEEE; e-waste) accumulated at dump that are very dangerous for the environment. On the other hand, many crucial materials and elements can be recovered from these wastes. Rare earth metals are one of them.
This lecture will present the state of art of the topic on the basis of the recently started ERANET-LAC project RECOLA involving a consortium of Research Institutes and Universities operating in Europe and South America.
The innovative concept presented in the RECOLA project is based on development of methodologies to extract rare earths (and other metals) from e-waste in order to allow efficient waste management and reintroduction economy of secondary raw materials. The RECOLA project activity is expected to succeed in development/realization of:

  • physical, chemical and mechanical processes of e-waste treatment;
  • specific nanostructured materials for metals extraction and separation;
  • recovered rare earth compounds, well characterized and ready for reuse.

The overall objective is therefore to change the strategic material recovery procedure in a way that will allow economic benefits without affecting the environment.

Seminar Announcement: Wieslaw Strek

posted May 3, 2017, 1:45 PM by Stefano Varas   [ updated May 3, 2017, 1:45 PM ]

Announcement
Tuesday, 2 May 2017, 11:00
Sala Grande Palazzina B via alla Cascata 56/C

"Laser Induced White Emission in Nanosized Materials"

Wieslaw Strek
Institute of Low Temperature and Structure Research, Polish Academy of Sciences
Wroclaw, Poland
W.Strek@int.pan.wroc.pl

Abstract
Laser induced white emission (LIWE) has been recently reported for a number of nanosized materials, such as: rare earth doped nanocrystalline powders, transparent undoped nanocrystals, and graphene composites. It was shown that LIWE is the broadband anti-Stokes emission characterized by several characteristic features:

  • threshold behavior on excitation density,
  • nonlinear dependence on excitation power P,
  • efficient photocurrent,
  • dependence on atmospheric pressure,
  • dependence on concentration of active ions,
  • dependence on temperature of sample,
  • low temperature of white emission,
  • long rise and decay times.

The examples of LIWE experimental results will be presented. A mechanism leading to white emission will be discussed in terms of avalanche multiphoton ionization and intervalence charge transfer transitions.

Seminar Announcement: Barbara Rossi

posted Apr 20, 2017, 1:40 AM by Stefano Varas   [ updated Apr 20, 2017, 1:40 AM ]

Announcement
Wednesday, 19 April 2017, 15:00
Sala Grande Palazzina B via alla Cascata 56/C

UV Resonant Raman scattering beamline at Elettra Sincrotrone Trieste: a platform for material science

Barbara Rossi
Elettra – Sincrotrone Trieste
barbara.rossi@elettra.eu

Abstract
Elettra Sincrotrone Trieste is a multidisciplinary international research center of excellence, specialized in generating high quality synchrotron and free-electron laser light and applying it in materials and life sciences. In particular, the IUVS beamline@Elettra is devoted to the study of inelastic scattering with ultraviolet radiation, in a time-space domain not accessible at present by other facilities. We introduce here the synchrotron-based resonant Raman scattering instrument working in the UV spectral range, newly developed on IUVS. This set-up, which exploits the UV synchrotron radiation source available at Elettra results in an innovative spectroscopic facility to be used for addressing a large array of open problems, ranging from the electronic properties of nanostructures and strongly correlated materials to biophysical and biochemical systems. Selected case studies will be discussed in order to show the possible applications of the Raman set-up and the areas of interactions with other research interests.

Seminar Announcement: Yann Boucher

posted Apr 15, 2017, 10:46 AM by Stefano Varas   [ updated Apr 15, 2017, 10:47 AM ]

Announcement
Wednesday, 12 April 2017, 15:00
Sala Grande Palazzina B via alla Cascata 56/C

All-Analytical Modelling of Photonic Structures: Mode-Coupling and Resonators

Yann Boucher
FOTON Lab (CNRS UMR 6082) Lannion, France
yann.boucher@enib.fr

Abstract
All-analytical modelling provides an attractive way of investigating the main optical features of active or passive photonic structures, using simple tools (most notably that of Linear Algebra) in order to follow the influence of each relevant parameter while still retaining the physical picture. In this respect, resonators and couplers are key elements with universal signification: confining the field enhances light-matter interaction, with the added advantage of spectral selectivity, while the Q-factor depends heavily on the input/output coupler.
We’ll notably present the potential of Extended (3x3) Transfer Matrix Formalism including sources, an original approach enabling one to describe the spectral and energetic properties of an active single-mode resonator, from Amplified Spontaneous Emission to laser oscillation.
We’ll also discuss resonant modal conversion in a two-mode waveguide coupled to a single-mode microring resonator presenting possible Kerr-type nonlinearity.

I computer del futuro? Saranno di diamanti

posted Apr 11, 2017, 1:21 AM by Stefano Varas   [ updated Apr 11, 2017, 1:21 AM ]

CNR - Comunicato stampa 98/2016

11-11-2016

Realizzati per la prima volta circuiti fotonici in diamante per computer quantistici in grado di fornire una potenza di calcolo infinitamente superiore rispetto ai pc tradizionali. Lo studio internazionale, coordinato congiuntamente dall’Ifn-Cnr e dal Dipartimento di fisica del Politecnico di Milano, è pubblicato su Nature Scientific Reports. Gli innovativi strumenti consentirebbero di risolvere problemi dall’elevata complessità di calcolo come le previsioni dei cambiamenti climatici o le variazioni del mercato azionario e troverebbero impiego anche nella diagnostica medica.


https://www.cnr.it/it/comunicato-stampa/7136/i-computer-del-futuro-saranno-di-diamanti

Particolare del sistema laser di fabbricazione dei circuiti in diamante


https://www.cnr.it/it/comunicato-stampa/7136/i-computer-del-futuro-saranno-di-diamanti

IQP 2017

posted Apr 11, 2017, 1:20 AM by Stefano Varas

http://events.unitn.it/en/iqp2017

9th Optoelectronics and Photonics Winter School: IQP – Integrated Quantum Photonics
Alpen Hotel Eghel, Folgaria (Trento, Italy)
March 26th - April 1st, 2017

Dear Colleague,
this is the final announcement of the 9th Optoelectronics and Photonics Winter School: IQP – Integrated Quantum Photonics.

The School is addressing specific topics of high importance within the international scientific community of Optoelectronics and Photonics. It aims in bringing together a large number of PhD students and young researchers from all parts of the world which across a one-week intense schedule follow a series of lectures on selected topics. The lectures are held by internationally recognized experts in the field. At the same, the students are encouraged to enjoy the beautiful location where the school is organized.

The School will take place in Folgaria near Trento (Italy) on March 26th-April 1st, 2017.

This is the 9th edition of the Optoelectronics and Photonics Winter School series traditionally held in Trentino region every second year.

This time, the Organizing Committee has chosen the topic of Integrated Quantum Photonics following the research activities of the organizing institutes and paving the way to the next EC Flagship on Quantum Technologies.

Lecturers will include:

Mario Agio - University of Siegen, Germany
Martin Booth - University of Oxford, UK
Massimo Borghi - University of Trento, Italy
Gianluca Boso - ID Quantique, Switzerland
Tommaso Calarco - Ulm University, Germany
Iacopo Carusotto - INO-CNR BEC Center, Italy
Jonathan Finley - Walter Schottky Institut - Technische Universität München, Germany
Andrea Fiore - Technische Universiteit Eindhoven, Netherlands
Gerd Leuchs - Max Planck Institute for the Science of Light, Erlangen, Germany
Marco Liscidini - University of Pavia, Italy
Jonathan Matthews - Centre for Quantum Photonics – University of Bristol, UK
Georg Pucker - Bruno Kessler Foundation, Italy
Roberta Ramponi - IFN-CNR - Politecnico di Milano, Italy
Fabio Sciarrino - Sapienza University of Rome, Italy
Peter WF Smith - University of Southampton, UK
David Stoppa – FBK, Trento, Italy
Sébastien Tanzilli - Université Nice Sophia Antipolis, France
Philip Walther - University of Vienna, Austria

More detailed information can be found on the school webpage:
http://events.unitn.it/en/iqp2017

The deadline for application is February 28th, 2017

We would be grateful if you would bring this announcement to the attention of PhD students, postdocs, young and senior researchers interested in this field.

Sincerely,
the organizers,
Roberta Ramponi and Lorenzo Pavesi

Seminar Announcement: Pier Sazio

posted Mar 2, 2017, 3:30 AM by Stefano Varas   [ updated Mar 2, 2017, 3:31 AM ]

Announcement
Monday, 27 February 2017, 15:00
Sala Grande Palazzina B via alla Cascata 56/C

Semiconductor optical fibre devices

Pier Sazio
Optoelectronics Research Centre, University of Southampton, UK
pjas@soton.ac.uk

Abstract
Semiconductor waveguide fabrication for photonics is usually performed in a planar geometry. However, over the past decade a new field of semiconductor-based optical fibre devices has emerged. Using high pressure chemical deposition technology jointly developed by our groups at Penn State and ORC Southampton, crystalline elemental semiconductors such as Si, Ge and even compound II-VI materials such as ZnSe have been chemically deposited at high pressure inside silica capillaries and microstructured optical fibres, allowing the optical and electronic properties of these materials to be exploited for applications such as all-fibre optoelectronics. The high-pressure chemical vapour deposition (HPCVD) technique is simple, low cost, and flexible so that it can be modified to fill a range of complex geometries, thus providing additional design flexibility to enhance the potential application base of the electronic/photonic devices.

Seminar Announcement: Enrico Prati

posted Feb 19, 2017, 11:57 PM by Stefano Varas   [ updated Feb 19, 2017, 11:58 PM ]

Announcement
Thursday, 16 February 2017, 15:00
Sala Grande Palazzina C via alla Cascata 56/C

Single atom devices for nanoelectronics and nanophotonics

Enrico Prati
Istituto di Fotonica e Nanotecnologie – Consiglio Nazionale delle Ricerche
Piazza Leonardo da Vinci 32, 20133 Milano
enrico.prati@cnr.it

Abstract
I introduce the recent advancements of single atom physics and technology in silicon devices. Single atom-based devices display a rich variety of physical phenomena ranging from quantum transport to control of single electrons, to Kondo effect and single photon emission. I review technological issues and future prospects in the field of quantum computing and quantum communications, including the most recent research of room temperature single photon regime from Er emission.

[1] E. Prati, M. Hori, F. Guagliardo, G. Ferrari, and T. Shinada, Anderson–Mott transition in arrays of a few dopant atoms in a silicon transistor, Nature Nanotechnology 7, 443–447 (2012) [IF 35.267].
[2] Y. Shimizu, ... E. Prati, Behavior of phosphorous and contaminants from molecular doping combined with a conventional spike annealing method, Nanoscale, 6(2), 706-710 (2014) [IF 7.760].
[3] A. Crippa, ..., and E. Prati, Valley blockade and multielectron spin-valley Kondo effect in silicon, Physical Review B, 92, 035424 (2015) [IF 3.691].
[4] E. Prati, K. Kumagai, M. Hori, and T. Shinada, Band transport across a chain of dopant sites in silicon over micron distances and high temperatures, Scientific Reports, 6, 19704 (2016) [IF 5.592].
[5] M. Celebrano…, and E. Prati, Room-temperature 1.54 μm photoluminescence of Er:Ox centers at extremely low concentration in silicon, submitted (2017)

Keywords: silicon, quantum information, quantum communications, single atom nanoelectronics.

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