Conference Agenda

Topical Meetings and Sessions:

TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices
TOM 7 - Thermal radiation and energy management
TOM 8 - Nonlinear and Quantum Optics
TOM 9 - Optics at Nanoscale (ONS)
TOM 10 - Optical Microsystems (OMS)
TOM 11 - Waves in Complex Photonic Media
TOM 12 - Optofluidics
TOM 13 - Ultrafast Optical Technologies and Applications
TOM 14 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session organised by SIOF
Grand Challenges of Photonics Session

More information on the Topical Meetings

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Session Overview
TOM6 S02: TOM 6 Optical Materials: Thin films and applications
Wednesday, 15/Sept/2021:
11:15 - 12:45

Session Chair: Azzedine Boudrioua, University Sorbonne Paris Nord (Paris 13), France
Location: Aula 7

1st Floor

11:15 - 11:45
ID: 164 / TOM6 S02: 1
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

Er3+ activated photonic glass systems fabricated by RF sputtering on flexible substrates

Alessandro Chiasera1, Osman Sayginer2,1, Lam Thi Ngoc Tran1, Anna Szczurek1, Stefano Varas1, Maurizio Ferrari1, Erica Iacob3, Justyna Krzak4, Oreste S. Bursi2,1, Daniele Zonta2,1,5, Kamila Startek6,7, Anna Lukowiak7, Guglielmo Macrelli8, Giancarlo C. Righini9

1IFN-CNR CSMFO Lab. and FBK Photonics Unit; 2Department of Civil, Environmental and Mechanical Engineering, University of Trento; 3Fondazione Bruno Kessler, Sensors and Devices, Micro Nano Facility; 4Department of Mechanics, Materials and Biomedical Engineering, Wroclaw University of Science and Technology; 5Department of Civil and Environmental Engineering, University of Strathclyde; 6PORT, Polish Center for Technology Development; 7Institute of Low Temperature and Structure Research, PAS; 8Isoclima S.p.A., R&D Department; 9Istituto di Fisica Applicata Nello Carrara IFAC-CNR, MipLab

Glass-based 1D photonic crystals and planar waveguides are fabricated by the rf-sputtering technique on different substrates, such as Poly(methyl methacrylate) (PMMA), Polyether ether ketone (PEEK), SCHOTT AS 87 eco ultra-thin glass and SiO2. The optical, spectroscopic and structural features of the samples are measured and compared before and after mechanical deformation. The planar waveguide SiO2-HfO2:Er3+ deposited on PEEK and on ultra-thin glass present an attenuation coefficient lower than 0.3 dB/cm at 1542 nm and emission at 1.5 m characteristic of Er3+ ions in an amorphous environment.

11:45 - 12:00
ID: 402 / TOM6 S02: 2
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

RF magnetron sputtering deposition of multilayers optical filters for ultra-broadband applications with a large number of thin layers

Maxime Duris, Bryan Horcholle, Cédric Frilay, Christophe Labbe, Xavier Portier, Philippe Marie, Sylvain Duprey, Franck Lamarie, Julien Cardin

CIMAP, France

We present recent achievement on manufacturing optical filter and multilayers done with two complementary RF magnetron sputtering approaches: deposition duration control and in situ optical reflectance monitoring. Those approaches have been greatly improved thanks to ellipsometry and spectrophotometry cross-studies of optical refractive indexes of Nb2O5, TiO2 and SiO2 materials grown using two sputtering systems. At the same time, we conducted deposition studies of these three materials which have increased the manufacturing reliability and allow us to consider developing complex optical multilayers with more than 100 sub-layers

12:00 - 12:15
ID: 509 / TOM6 S02: 3
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

Optical properties of ALD-deposited ZrO2 thin films: the refractive index and photoluminiscence

Anna Sytchkova1, Maria Lucia Protopapa2, Zhihao Wang3, Yanzhi Wang3, Emiliano Burresi2, Leander Tapfer2, Martino Palmisano2, Emanuela Pesce2, Paolo Olivero4, Kaixin Zhang3, Guohang Hu3, He Hongbo3, Jianda Shao3

1ENEA Casaccia, Italy; 2ENEA Brindisi, Italy; 3SIOM, China; 4University of Torino, Italy

The optical properties of amorphous ALD-deposited zirconium oxide were studied in terms of its refractive index and photo-induced luminescence ability. We infer that the oxygen vacancies and nitrogen impurities may be the origin of the luminescence of these films.

12:15 - 12:30
ID: 199 / TOM6 S02: 4
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

Near-IR transparent conductive amorphous tungsten oxide thin layers by non-reactive radio-frequency magnetron sputtering

Hao Chen1,2, Alessandro Chiasera3, Cristina Armellini3, Giorgio Speranza3,4, Stefano Varas3, Osman Sayginer3, Antonio Alfano2, Marco Cassinelli2, Mario Caironi2, Raffaella Suriano5, Mohamed Zaghloul1,2, Alberto Tagliaferri1,2, Maurizio Ferrari3, Silvia Maria Pietralunga2,6

1Politecnico di Milano, Department of Physics, Piazza Leonardo da Vinci, 32, 20133 Milano, Italy; 2CNST@PoliMi, Istituto Italiano di Tecnologia (IIT), Via Giovanni Pascoli 70/3, Milano, Italy; 3IFN-CNR CSMFO Laboratory and FBK Photonics Unit, Via alla Cascata 56/C Povo 38100 Trento, Italy; 4Fondazione Bruno Kessler (FBK)—Centro Materiali e Microsistemi (CMM), Via alla Cascata 56/C, 38123 Trento, Italy; 5Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, piazza L. da Vinci, 32, 20133 Milano, Italy; 6Institute for Photonics and Nanotechnologies (IFN)—National Research Council (CNR), Piazza L. da Vinci, 32, 20133 Milano, Italy

Key assets for transparent electric contacts in optoelectronic applications are high conductivity and large transparency over extended spectral range. Indium-Tin-Oxide and Aluminium-doped-Zinc-oxide are commercial examples, with their electrical conductivity resembling those of metals, despite, their transparency being limited up to 1.5um. This work introduces smooth and compact amorphous thin films of n-type semiconducting WO3-x prepared by RF-sputtering followed by annealing in dry air, as optical layers of tailorable dielectric properties. We evaluate Figure of Merit, combining electrical conductivity and optical transparency, and rate the performances as a transparent conductive layer.

12:30 - 12:45
ID: 126 / TOM6 S02: 5
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

Ammonia gas sensing via whispering gallery mode resonator

Daniil Zhivotkov1,2, Davor Ristić1, Elena Romanova2, Mile Ivanda1

1Institut Ruđer Bošković, Croatia; 2Saratov State University, Russian Federation

The concentrations of ammonia gas has been measured using a whispering gallery mode (WGM) resonator based sensor. The resonances in the WGM resonator experience a shift in presence of gas molecules. This shift can be drastically increased by adding a new porous layer on the resonator surface. In that case the porous layer acts as “trap” for the gas molecules and moreover changes the refractive index of the surrounding medium.