Events

Events

• Prof. Dieter Hoffmann

  Monday, 19. October,
  
  
  CANCELD

  PAF - Kolloquium

• Sarmiza Stanca - A trimodal scanning probe sensor integrated into electrochemical photoinduced force microscopy. Application to cell membrane study

  Monday, 26. October, 4:00 PM, Fröbelstieg 1, HS 1
  
  This work aims to build a trimodal scanning probe sensor (TrimodFM) integrated into an electrochemical photoinduced force microscopy setup (EC-PiFM) that synergistically record topographical, tip-electrochemical and photoinduced force microscopical (PiFM) information at nanoscale in liquid (Figure 1). Two essential issues of the scanning force microscopy feedback instability in liquid and the water absorption of the infrared input signal in PiFM drive the methodological innovative solutions: 1) integration of a feedback stabilizer in liquid; 2) use a visible wavelength laser for PiFM; 3) operate PiFM at a tip esonance frequency adjusted via electrochemically locally grown porous platinum. The effort of implementing liquid cell in the system makes scientific sense when examinate dynamic processes at nanoscale, unapproachable straight in native form with other techniques. On this basis, we propose an EC-PiFM, by electronically connecting the tip-photoinduced records to the established simultaneous morphological-electrochemical records at nanoscale in liquid, which may solve central scientific issue of nanoscale study of the samples inaccessible with other methods. The sensor proofs its applicability to study at nanoscale the cell membrane, particularly ion channel inaccessible directly with other techniques.

  PAF - Kolloquium

• Dr. Sebastian Wolfgang Schmitt -

  Montag, 16. November, 4:00 PM, Fröbelstieg 1,HS 1

  PAF - Kolloquium

• Prof. Jairo Sinova -

  Monday, 23. November, 4:00 PM, Fröbelstieg 1, HS 1

  PAF - Kolloquium

• Dr. Andreas Walter Stark - Structured illumination and triangulation-based 3D reconstruction for extreme and specialized applications: from macro to nano

  Monday, 14. December, 4:00 PM, Fröbelstieg 1, HS 1Structured illumination and triangulation-based 3D reconstruction are well-established tools in both research and industrial metrology. Over the past years, however, we have adapted and extended these methods to open up new application domains and address questions far beyond their original scope: Does a mouse’s visual field overlap with the space explored by its whiskers? [1] How long is the antenna of a moth with a wingspan of just one centimeter? [2] Can ultraviolet scattering from a glass lens be turned into a signal for 3D measurement? [3] What can neuromorphic, event-based cameras contribute to 3D metrology and microscopy? [4] And how can three-dimensional measurements with sub-100-µm precision be performed inside a potentially explosive environment such as a hydrogen pipeline? [5]
  
  In this colloquium, I will introduce my habilitation project by addressing these questions, tracing a path from macroscopic inspection to the micro- and nanoscale. I will show how established methods of optical metrology, when pushed beyond their traditional boundaries, can become enabling tools for neuroscience, biology, microscopy, and (hydrogen) technology.
  
  References
  [1] S. Weiler et al., Nature Communications 15, 3081 (2024).
  [2] A. W. Stark et al., Scientific Reports 15, 28690 (2025).
  [3] G. J. Gentsch, A. Platz et al., preprint (2026), doi: 10.64898/2026.04.20.719583; under revision at Light: Advanced Manufacturing.
  [4] C. Freitag et al., Optics Express 33, 2924 (2025).
  [5] BMFTR joint project 3D-Vens, https://www.quantensysteme.info/projektatlas/projekte/q/3d-vens

  PAF - Kolloquium

• Prof. David Blaschke - Thermal Twin Stars

  Monday 11. January, 4:00 PM, Fröbelstieg 1, HS 1

  PAF - Kolloquium

• Prof. Micol Alemani

  Monday, 18.January, 4:00 PM, Fröbelstieg 1, HS 1

  PAF - Kolloquium