Portland State University. Department of Physics
Andres La Rosa
Date of Publication
Master of Science (M.S.) in Physics
Atomic force microscopy, Acoustic microscopy
1 online resource (xi, 153 pages)
An atomic force microscopy beam-like cantilever is combined with an electrical tuning fork to form a shear force probe that is capable of generating an acoustic response from the mesoscopic water layer under ambient conditions while simultaneously monitoring force applied in the normal direction and the electrical response of the tuning fork shear force probe. Two shear force probes were designed and fabricated. A gallium ion beam was used to deposit carbon as a probe material. The carbon probe material was characterized using energy dispersive x-ray spectroscopy and scanning transmission electron microscopy. The probes were experimentally validated by demonstrating the ability to generate and observe acoustic response of the mesoscopic water layer.
Kozell, Monte Allen, "Investigation of the Acoustic Response of a Confined Mesoscopic Water Film Utilizing a Combined Atomic Force Microscope and Shear Force Microscope Technique" (2018). Dissertations and Theses. Paper 4451.