TRR 142 - Polaron signatures in the optical response of lithium niobate (B07*)
Overview
This joint theory-experiment project will explore the rich physics of polarons and their optical signatures. In particular, we plan to resolve their influence on the linear and nonlinear optical properties of the material as well as their condensation, hopping and dissociation characteristics in interaction with intrinsic and extrinsic point defects within the crystal. We focus on stoichiometric, congruent and differently doped lithium niobate. Our project shall contribute to a thorough understanding of polarons and the knowledge-driven optimization of the materials properties.
Key Facts
- Grant Number:
- Research profile area:
- Optoelektronik und Photonik
- Project type:
- Forschung
- Project duration:
- 01/2022 - 12/2025
- Funded by:
- Deutsche Forschungsgemeinschaft (DFG)
- Website:
-
Homepage
More Information
Publications
Microscopic origin of gray tracks in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>KTiOPO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math>
A. Bocchini, U. Gerstmann, W.G. Schmidt, Physical Review B 111 (2025).
Mg dopants in lithium niobate (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>LiNbO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>, LN): Defect models and impact on domain inversion
A. Bocchini, M. Rüsing, L. Bollmers, S. Lengeling, P. Mues, L. Padberg, U. Gerstmann, C. Silberhorn, C. Eigner, W.G. Schmidt, Physical Review Materials 9 (2025).
Phosphonic acid adsorption on <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si23.svg" display="inline" id="d1e564"><mml:mi>α</mml:mi></mml:math>-Bi<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si24.svg" display="inline" id="d1e569"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si25.svg" display="inline" id="d1e577"><mml:msub><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math> surfaces
A. Bocchini, S. Kollmann, U. Gerstmann, W.G. Schmidt, G. Grundmeier, Surface Science 760 (2025).
Self-assembly of isolated plasmonic dimers with sub-5 nm gaps on a metallic mirror
V. Devaraj, I.A. Ruiz Alvarado, J.-M. Lee, J.-W. Oh, U. Gerstmann, W.G. Schmidt, T. Zentgraf, Nanoscale Horizons 10 (2025) 537–548.
Relativistic calculation of the orbital hyperfine splitting in complex microscopic structures
Show all publications
K. Franzke, W.G. Schmidt, U. Gerstmann, Journal of Physics: Conference Series 2701 (2024).