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
Session
TOM6 S03: Optical Materials: Optical materials, probing and characteriozation
Time:
Wednesday, 15/Sept/2021:
16:15 - 17:45

Session Chair: Concita Sibilia, Università di Roma La Sapienza, Italy
Location: Aula 7

1st Floor

Presentations
16:15 - 17:00
Special Invited
ID: 541 / TOM6 S03: 1
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

Oxide-based nonlinear borate single crystals: a good challenge for the design of efficient UV solid state laser in the UV range

Gerard Aka

Chimie Paristech, France

Nowadays, only very few nonlinear (NLO) crystals can achieve Third harmonic or forth

harmonic generation phase matching process towards UV, especially when wavelengths below 270

nm are targeted. Therefore, the field of research for NLO materials in UV range is still widely open.

Reliable and long lifetime new NLO crystals would easily open industrial markets. More than

hundreds of non-centrosymmetric crystals have been investigated since 1962 regarding their

frequency conversion properties. However, the most materials that eventually came to the market

and found practical applications remain oxide-based borates single crystals



17:00 - 17:15
ID: 236 / TOM6 S03: 2
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

Optical characterization of diffusion doped Nd:LNOI

Christian Rüter1, Kore Hasse1, Feng Chen2, Detlef Kip1

1Helmut Schmidt University, Germany; 2Shandong University, P.R. China

Nd doped LNOI has been fabricated from a diffusion doped LiNbO3 (LN) substrate. Diffusion doping allows to fabricate differently doped areas on a single LNOI substrate. The fluorescence spectra, the fluorescence lifetime and the small signal gain have been determined for the first time, to the best of our knowledge. The results obtained agree with data published for diffusion doped ridge or channel waveguides in LN substrates. We achieve a small signal gain of 16dB pumping with a DBR laser diode what is promising for future laser operation.



17:15 - 17:30
ID: 409 / TOM6 S03: 3
TOM 6 Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices

Investigation of ferroelectric domain walls in periodically-poled LiNbO3 single crystals by polarization-sensitive optical coherence tomography

Jonas Golde1, Michael Rüsing2, Richard Kindler1,2, Svea Steuer1, Jan Rix1, Lukas M. Eng2,3, Edmund Koch1

1Clinical Sensoring and Monitoring, Anesthesiology and Intensive Care Medicine, Faculty of Medicine Carl Gustav Carus, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany; 2Institute of Applied Physics, TU Dresden, Noethnitzerstr. 61, 01187 Dresden, Germany; 3ct.qmat, Dresden-Würzburg Cluster of Excellence-EXC 2147, TU Dresden, Noethnitzerstr. 61, 01187 Dresden, Germany

Domain walls (DWs) in ferroelectric materials are of highest interest as integrated functional elements, for instance in optoelectronic nanodevices. We investigate individual ferroelectric DWs in periodically-poled LiNbO3 single crystals by applying polarization-sensitive optical coherence tomography at 1300 nm. Using circular light polarization, we probe the relevant electro-optical properties close to and at the DWs. Comparing experimental results to simulations, we conclude that the three different DW signals are associated to the ordinary and extraordinary refractive index, and to a third contribution from the mean value of both.