Physics – Condensed Matter – Materials Science
Scientific paper
2009-10-13
N. G. Parker, P. V. Nelson and M. J. W. Povey, Meas. Sci. Technol. 21, 045901 (2010).
Physics
Condensed Matter
Materials Science
12 pages, 12 figures. Accepted for publication in Measurement Science and Technology
Scientific paper
10.1088/0957-0233/21/4/045901
We present a versatile and highly configurable scanning acoustic platform. This platform, comprising of a high frequency transducer, bespoke positioning system and temperature-regulated sample unit, enables the acoustic probing of materials over a wide range of length scales and with minimal thermal aberration. In its bare form the platform acts as a reflection-mode acoustic microscope, while optical capabilities are readily incorporated to extend its abilities to the acousto-optic domain. Here we illustrate the capabilities of the platform through its incarnation as an acoustic microscope. Operating at 55 MHz we demonstrate acoustic imaging with a lateral resolution of 25 microns. We outline its construction, calibration and capabilities as an acoustic microscope, and discuss its wider applications.
Nelson P. V.
Parker N. G.
Povey M. J. W.
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