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Roland Kersting, Federico Buersgens, Guillermo Acuna

Mapping the Acoustic Phase with Terahertz and Millimeter Wave Techniques

Keywords: terahertz, Imaging, acoustics

Objects behind an opaque barrier become visible when imaging the object´s phase lag to a driving acoustic oscillation with terahertz or millimeter wave radiation. The sensitivity of the developed technique covers metallic as well as dielectric objects. Oscillation amplitudes can be as small as 1 μm, which are comparable to the human perception level. The application for security technology is discussed.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 75, 01/2008
Pages: 051 - 057

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