Dresden 2006 – wissenschaftliches Programm
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O: Oberflächenphysik
O 29: Poster session II (Nanostructures, Magnetism, Particles and clusters, Scanning probe techniques, Time-resolved spectroscopy, Structure and dynamics, Semiconductor surfaces and interfaces, Oxides and insulators, Solid-liquid interfaces)
O 29.47: Poster
Mittwoch, 29. März 2006, 14:30–17:30, P2
Video-rate Scanning Probe Microscopes: problems and solutions — •M.J. Rost1,2, G.J.C. van Baarle1,2, W.A. van Loo1, L. Crama1, P. Schakel1, E. van Tol1, T.H. Oosterkamp1, and J.W.M. Frenken1 — 1Kamerlingh Onnes Laboratory, Leiden University, P.O.Box 9504, 2300 RA Leiden, The Netherlands — 2Leiden Probe Microscopy, KOL, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
For a wide variety of surface and interface phenomena, in both fundamental and applied contexts ,it is becoming increasingly important to visualize them with atomic or molecular resolution combined with high imaging speeds. We have recently developed a video-rate control system for scanning probe microscopes, including high-bandwidth amplifiers and fast data handling. From different tests, where we connected the new control electronics with several home-built and commercial instruments, we conclude that the current bottle neck in high-speed imaging is solely formed by the mechanical behaviour of the microscopes. We present new concepts and first, promising tests for high-frequency scanners, involving compact designs, new piezo geometries, and local damping solutions.