Title
Multimode Q Control in Tapping-Mode AFM: Enabling Imaging on Higher Flexural Eigenmodes.
Abstract
Numerous dynamic atomic force micros- copy (AFM) methods have appeared in recent years, which make use of the excitation and detection of higher order eigenmodes of the microcantilever. The ability to control these modes and their responses to excitation is believed to be the key to unraveling the true potential of these methods. In this paper, we highlight a multimode Q control method that exhibits remarkable damping performance and stability robustness. The experimental results obtained in ambient conditions demonstrate improved imaging stability by damping nondriven resonant modes when scanning is performed at a higher eigenmode of the cantilever. Higher scan speeds are shown to result from a decrease in transient response time.
Year
DOI
Venue
2016
10.1109/TCST.2015.2478077
IEEE Trans. Contr. Sys. Techn.
Keywords
Field
DocType
Force,Q-factor,Imaging,Damping,Optical variables measurement,Nickel,Springs
Transient response,Q factor,Flexural strength,Cantilever,Optics,Robustness (computer science),Excitation,Control engineering,Multi-mode optical fiber,Normal mode,Mathematics
Journal
Volume
Issue
ISSN
24
4
1063-6536
Citations 
PageRank 
References 
4
0.86
4
Authors
2
Name
Order
Citations
PageRank
Michael G. Ruppert153.37
S. O. Reza Moheimani2257.64