Scan speed control for tapping mode SPM.

Nanoscale Research Letters
Aleksey V Meshtcheryakov, Vjacheslav V Meshtcheryakov

Abstract

In order to increase the imaging speed of a scanning probe microscope in tapping mode, we propose to use a dynamic controller on 'parachuting' regions. Furthermore, we propose to use variable scan speed on 'upward step' regions, with the speed determined by the error signal of the closed-loop control. We offer line traces obtained on a calibration grating with 25-nm step height, using both standard scanning and our scanning method, as experimental evidence.

References

Oct 2, 2009·The Review of Scientific Instruments·B ZhaoJ K Hobbs
Nov 10, 2009·The Review of Scientific Instruments·Pranav AgarwalMurti V Salapaka
Jun 7, 2011·The Review of Scientific Instruments·Yudong ZhangXiaokun Dong

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