5 papers
Photorefraction Management in Lithium Niobate Waveguides: High-Temperature vs. Cryogenic Solutions
Nina A. Lange, René Pollmann, Michael Rüsing +7
Lithium niobate sees widespread use in nonlinear and quantum optical devices, such as for sum- and difference-frequency generation or spontaneous parametric down-conversion. In lit…
Demonstration of domain wall current in MgO-doped lithium niobate single crystals up to 400 °C
Hendrik Wulfmeier, Uliana Yakhnevych, Cornelius Boekhoff +12
Conductive ferroelectric domain walls (DWs) represent a promising topical system for the development of nanoelectronic components and device sensors to be operational at elevated t…
Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate mixed crystals
Laura Bollmers, Tobias Babai-Hemati, Boris Koppitz +5
Lithium niobate and lithium tantalate are among the most widespread materials for nonlinear, integrated photonics. Mixed crystals with arbitrary Nb-Ta ratios provide a new degree o…
Probing Ferroelectric Phase Transitions in Barium Titanate Single Crystals via Second Harmonic Generation Microscopy
Benjamin Kirbus, Samuel D. Seddon, Iuliia Kiseleva +3
Ferroelectric materials play a crucial role in a broad range of technologies due to their unique properties that are deeply connected to the pattern and behavior of their ferroelec…
Towards the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals
Julius Ratzenberger, Iuliia Kiseleva, Boris Koppitz +7
Ferroelectric domain walls (DWs) are promising structures for assembling future nano-electronic circuit elements on a larger scale, since reporting domain wall currents of up to 1…