XIV
h
International Conference on Molecular Spectroscopy, Białka Tatrzańska 2017
16
K–5
Glasses and glass-ceramics for photonics: advances and perspectives
Thi Ngoc Lam Tran
1,2,3
, Lidia Zur
1,4
, Anna Lukowiak
5
, Alessandro Chiasera
1
,
Stefano Varas
1
, Cristina Armellini
1
, Andrea Chiappini
1
, Alessandro Carpentiero
1
,
Davor Ristic
6,7
, Mile Ivanda
6,7
, Francesco Scotognella
8,9
, Silvia Pietralunga
9
,
Stefano Taccheo
10
, Daniele Zonta
1,2,11
, Dominik Dorosz1
2
, Giancarlo C. Righini
4,13
,
Roberta Ramponi
9
, Brigitte Boulard
14
, and Maurizio Ferrari
1,4
1
IFN-CNR CSMFO Lab. and FBK Photonics Unit via alla Cascata 56/C Povo, 38123 Trento, Italy
2
Department of Civil, Environmental and Mechanical Engineering, Trento University Via Mesiano, 77, 38123
Trento, Italy
3
Ho Chi Minh City University of Technical Education, 1 Vo Van Ngan Street, Linh Chieu Ward, Thu Duc District,
Ho Chi Minh City, Viet Nam
4
Centro di Studi e Ricerche “Enrico Fermi”, Piazza del Viminale 1, 00184 Roma, Italy
5
Institute of Low Temperature and Structure Research PAS, Okolna St. 2, 50-422 Wroclaw, Poland
6
Ruđer Bošković Institute, Division of Materials Physics, Laboratory for Molecular Physics, Bijenička c. 54,
Zagreb, Croatia
7
Center of Excellence for Advanced Materials and Sensing Devices, Research unit New Functional Materials,
Bijenička c. 54, Zagreb, Croatia
8
Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli, 70/3,
20133, Milano, Italy
9
IFN-CNR and Department of Physics, Politecnico di Milano, p.zza Leonardo da Vinci 32, 20133 Milano, Italy
10
College of Engineering, Swansea University, Bay Campus, Swansea, UK
11
Department of Civil and Environmental Engineering, University of Strathclyde, 75 Montrose Street, Glasgow,
G11XJ, UK
12
AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland
13
MDF Lab. IFAC - CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
14
Institut des Molécules et Matériaux du Mans, UMR 6283, Equipe Fluorures, Université du Maine, Av. Olivier
Messiaen, 72085 Le Mans cedex 09, France
The development of optically confined structure is a major topic in both basic and applied
physics not solely ICT oriented but also concerning lighting, laser, sensing, energy,
environment, biological and medical sciences, and quantum optics. Glasses and glass-ceramics
activated by rare earth ions are the bricks of such structures. Glass-ceramics are nanocomposite
systems that exhibit specific morphologic, structural and spectroscopic properties allowing to
develop new physical concepts, for instance the mechanism related to the transparency, as well
as novel photonic devices based on the enhancement of the luminescence. The dependence of
the final product on the specific parent glass and on the fabrication protocol still remain an
important task of the research in material science. Looking to application, the enhanced
spectroscopic properties typical of glass ceramic in respect to those of the amorphous structures
constitute an important point for the development of integrated optics devices, including optical
amplifiers, monolithic waveguide laser, novel sensors, coating of spherical microresonators, and
up and down converters. This lecture presents some recent results obtained by our consortium in
rare earth doped photonic glasses and confined structures, in order to give some highlights
regarding the state of art in glass photonics. To evidence the unique properties of transparent
glass ceramics we will compare spectroscopic and structural properties between the parent glass
and the glass ceramics. Starting from planar waveguides we will move to spherical
microresonators, a very interesting class of photonic confined structures. Then we will present
1D-potonic crystals and opals allowing management of optical and spectroscopic properties. We
will conclude the short review with some remarks about the perspective for glass photonics.
Acknowledgment
The research activity is performed in the framework of COST Action MP1401 Advanced fibre laser and coherent
source as tools for society, manufacturing and lifescience (2014-2018), ERANET-LAC FP7 Project RECOLA –
Recovery of Lanthanides and other Metals from WEEE (2017-2019) and Centro Fermi PLANS project. Lam Thi
Ngoc Tran acknowledges the scholarship of the Ministry of Education and Training, Vietnam International
Education Development.
XIV
h
International Conference on Molecular Spectroscopy, Białka Tatrzańska 2017
17
K–6
Block copolymers in nanoscience: microscopy and spectroscopy
Stefan Jurga
1
1
NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland,
e-mail: stjurga@amu.edu.pl
Block copolymers (BCPs) are well known self-assembling organic materials that due to
their unique properties have a wide application in material and biomedical sciences.
Thermodynamically driven, spontaneous phase separation observed in BCPs leads to the
developement of specific domain morphology which can be characterized by distinctive
and repetitive nanoscopic, structural motifs. BCPs domain dimensions are tunable by the
copolymerization stoichiometry, accordingly giving access to sub-10-nanometric feature
sizes. The technology based on BCPs may potentially compete with standard lithographic
methods provided; i) there is a negligible population of defects present in these organic
matrices and ii) there is a sharp enough interface between dissimilar phases. Therefore,
a number of questions are addressed to understand and to control the self-assembling
mechanisms and copolymer chain dynamics.
In this talk phase structure and molecular dynamics in selected block copolymers in
bulk, thin films 1,2 and solution will be discussed from the point of view of various
material and biomedical applications. The results of structural studies based on Atomic
Force Microscopy, Scanning Electron Microscopy, NMR spin diffusion and Wide Angle
X-ray Scattering will be presented. In turn molecular dynamics of the systems will be
characterized using NMR and Dielectric Spectroscopy.
Acknowledgment
This work was supported by the National Science Centre under research Grant no 2013/11/B/ST3/04190
(Contract no. DEC-2013/11/B/ST3/04190).
References
[1] J. Jenczyk, E. Coy, S. Jurga, Eur. Polym. J. 75 (2016) 234.
[2] J. Jenczyk, M. Woźniak-Budych, M. Jarek, G. Nowaczyk, M. Grzeszkowiak, S. Jurga, Appl. Surf. Sci.
406 (2017) 235.
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