Past Events

Seminar Announcement: Barbara Rossi

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

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

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 ]

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

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


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.

Particolare del sistema laser di fabbricazione dei circuiti in diamante

IQP 2017

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

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:

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.

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 ]

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

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 ]

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

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.

Marcello Meneghetti - Master in Physics 2016

posted Feb 15, 2017, 2:10 AM by Stefano Varas

We are pleased to congratulate our Colleague Marcello Meneghetti, who has been awarded the Master in Physics on 21st December 2016, discussing the Thesis "Tin dioxide nanocrystals as Er3+ luminescence sensitizers: sol-gel fabrication of transparent glass-ceramics and their characterization"





The BIG Bell Test

posted Jan 12, 2017, 2:22 AM by Stefano Varas

The BIG Bell Test

Il prossimo 30 Novembre IFN CNR Trento collaborerà al BIG Bell Test, una serie di esperimenti all'avanguardia di fisica quantistica che avranno bisogno della partecipazione del maggior numero di persone possibile.

Chiunque potrà partecipare agli esperimenti collegandosi al sito ( e inserendo una serie casuale di numeri "0" e "1" in un videogioco. I dati inseriti verranno utilizzati per prendere le decisioni su quali misure effettuare durante gli esperimenti. Già da ora si può accedere al sito e giocare ma solo il 30 Novembre i dati saranno utili per gli esperimenti.

Si tratta di un vero esperimento scientifico su larga scala dove la risorsa utilizzata è la capacità degli esseri umani di esercitare la loro libera scelta in modo indipendente.

24 ottobre 2016 - Attivita di Outreach: Workshop “La Fotonica per le scuole”

posted Dec 6, 2016, 7:33 AM by Stefano Varas   [ updated Dec 6, 2016, 7:33 AM ]

"L’ IFN-CNR Trento nell’ambito del progetto di outreach Photonics4All, concernente la divulgazione e disseminazione della Fotonica, il giorno 24 ottobre 2016, ha tenuto un workshop per gli insegnanti delle scuole secondarie di primo e secondo grado della durata di 4 ore sull’impiego di nuove metodologie per l’insegnamento della Fotonica con l’ausilio di kit didattici.

Gli insegnanti durante una esperienza

24 ottobre 2016 - Attivita di Outreach: Workshop “La Fotonica per le scuole”

posted Oct 27, 2016, 12:33 AM by Stefano Varas

"L’Istituto di Fotonica e Nanotecnologie di Trento organizza, il giorno 24 ottobre 2016, per gli insegnanti delle scuole secondarie di primo e secondo grado un workshops della durata di 4 ore sull’impiego di nuove metodologie per l’insegnamento della Fotonica con l’ausilio di kit didattici sviluppati dalla Comunità Europea durante il Progetto Photonics4All.
I workshops saranno tenuti dai ricercatori dell’IFN-CNR, presso la sede del CNR in Via alla Cascata 56/C 38123 Povo (TN).
Durante il training, gli insegnanti verranno suddivisi in piccoli gruppi e invitati a eseguire gli esperimenti. Ogni esperimento è corredato di schede illustrative dei principi fisici coinvolti e delle misure/esperienze da fare.
Per maggiori informazioni sulla modalità di iscrizione e contenuti del workshop contattare Andrea Chiappini all’indirizzo mail: o al numero 0461 28 1691."

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