Berlin 2018 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 80: Poster: Scanning Probe Techniques - Method Development

O 80.14: Poster

Mittwoch, 14. März 2018, 18:15–20:30, Poster A

GXSM3: an open source scanning probe systemPercy Zahl1, •Thorsten Wagner2, and GXSM community31Center for Functional Nanomaterials, Brookhaven National Laboratory, USA — 2Experimental Physics, Johannes Kepler University, Linz, Austria — 3gxsm.sf.net and sranger.sf.net

Pushing the limits of scanning probe microscopy (SPM) does not only require a dedicated hardware (microscope) but also a sophisticated control system. In particular, the open source and community driven project GXSM [1-3] provides a high level of flexibility so that different kinds of SPMs can be operated via a digital signal processor (DSP) based hardware. Recently, the third version of the graphical user interface was released. Besides the completely overhauled user interface based on the Gtk+3/Gnome3-standard, there are also significant changes under the hood: The possibilities to remotely control GXSM3 via Python scripts were widely extended. Complex data acquisition tasks like automatic mosaic/survey scans are easily programmed in a simple script. Even auto-approach schemes with ‘watch dog’-option for the frequency (AFM mode) can be put into action by Python scripting. Tip position can now be controlled via mouse/objects and is fully programmable via python. A new open GL based 3D view was implemented, which allows also the rendering of volumetric data. Now, several wave forms can be used for the coarse motion.

[1] P. Zahl et al., Imaging & Microscopy (GIT), Jan. 26, 2015.

[2] P. Zahl, et al., J. Vac. Sci. Technol. B 28 (2010) C4E39.

[3] P. Zahl, et al., Rev. Sci. Instr. 74 (2003) 1222.

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