Berlin 2024 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 68: Poster: Scanning Probe Techniques: Method Development
O 68.1: Poster
Mittwoch, 20. März 2024, 18:00–20:00, Poster C
GXSM4 - an update — Percy Zahl1 and •Thorsten Wagner2 — 1Center for Functional Nanomaterials, Brookhaven National Laboratory, USA — 2Institute of Experimental Physics, Johannes Kepler University Linz, Austria
GXSM is an open-source software project with a history of more than 25 years1–3 and a worldwide user community4 that provides a state-of-the-art control software for all types of scanning probe techniques (STM, AFM, ...). The fourth generation of this versatile tool is based on the latest GNOME/linux desktop and a digital signal processor (DSP). The build-in General Vector Probe (GVP) enables freely programmable spectroscopy (e.g. IV in case of STM, FZ in case of NC-AFM, ...) and manipulation/probing. Up to three arbitrary wave forms can directly control the coarse motion of the SPM (Besocke/Beetle, Koala, ... ). The embedded Python interface can perform even more complex and automated tasks. Thus, it is only a small step to achieve AI-based image recognition and processing (via OpenCV) and automated scanning control.5 We will summarize the recent achievments and give an outlook on future plans (e.g. RedPitaya/FPGA based hardware), but we are also happy to discuss issues and technical requirements from the community.
[1] P. Zahl et al. in Rev. Sci. Instrum. 74, 1222–1227 (2003)
[2] P. Zahl et al. in J. Vac. Sci. Technol. B28, C4E39 (2010)
[3] P. Zahl et al. in Imaging and Microscopy, 17, 38-41 (2015)
[4] gxsm.sf.net and github.com/pyzahl/Gxsm4
[5] Arias et. al. in J. Phys. Chem. A 127, 5959–6134 (2023)