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.
Original language | English |
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Pages (from-to) | 1939-1941 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 78 |
Issue number | 13 |
DOIs | |
Publication status | Published - 2001 Mar 26 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)