IMT 13-2024 Bachelor- / Master Thesis: Modelling of photothermally excited micro cantilevers for quantitative off-resonance tapping AFM

Photothermal off-resonance tapping got introduced recently as a fast and gentle atomic force microscopy (AFM) imaging mode for soft samples (e.g proteins) [https://doi.org/10.1038/s41565-018-0149-4]. Now this imaging mode is extended for the acquisition of correlated topography and nanomechanical sample properties. Experiments revealed effects of the excitation laser spot position and excitation frequency on the obtained sample stiffness. The main goal of this project will be to create, implement and analyse thermo-mechanical models using finite-element or analytical methods to understand and compensate these effects.

Persönliche Qualifikation

• Field of study: mechanical engineering, physics, mechatronics
• First experience with FEM (Comsol, Ansys) and scripting for simulations (Python, Matlab, C++)

Organisationseinheit

Contract duration

3 – 6 months

Application up to

18.10.2024

Contact person in line-management

For further information, please contact Cornelia Pichler or Hans Gunstheimer, phone +49 721 608-23128.