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Vibrational Modes In Acoustic Gallery Scanning Probe Microscopy, Hsien-Chih Hung, Andres H. La Rosa, Rodolfo Fernandez, Bret Comnes, Richard Nordstrom

Physics Faculty Publications and Presentations

A distinct characteristic in Acoustic Gallery Scanning Probe Microscopy (AG-SPM) constitutes the use of its supporting structural frame as an acoustic resonant cavity for monitoring the nanometer-sized amplitude of its stylus-probe. Although very straightforward in its implementation, its amplitude detection sensitivity could be improved by a more thorough understanding of its working principle mechanism, as well as by a more systematic procedure to attain a closer matching between one of the cavitys acoustic resonances and the probes natural frequency. Herein, a description of the working principle of the AG-SPM is attempted from a vibrationalmode analysis perspective, and a successful specific …