TITLE

Resonance frequency and Q factor mapping by ultrasonic atomic force microscopy

AUTHOR(S)
Yamanaka, Kazushi; Maruyama, Yoshiki; Tsuji, Toshihiro; Nakamoto, Keiichi
PUB. DATE
March 2001
SOURCE
Applied Physics Letters;3/26/2001, Vol. 78 Issue 13, p1939
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We developed an improved ultrasonic atomic force microscopy (UAFM) for mapping resonance frequency and Q factor of a cantilever where the tip is in linear contact with the sample. Since the vibration amplitude at resonance is linearly proportional to the Q factor, the resonance frequency and Q factor are measured in the resonance tracking mode by scanning the sample in the constant force mode. This method enables much faster mapping of the resonance frequency and Q factor than the previous one using a network analyzer. In this letter, we describe the principle and instrumentation of the UAFM and show images of carbon-fiber-reinforced plastic composites. © 2001 American Institute of Physics.
ACCESSION #
4711153

 

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