Second harmonic acoustic responses induced in matter by quasi continuous radiofrequency fields

Kellnberger S, Omar M, Sergiadis G, Ntziachristos V (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 103

Article Number: 153706

Journal Issue: 15

DOI: 10.1063/1.4824709

Abstract

We subjected conductive matter and tissue to intermittent continuous-wave radiofrequency fields and investigated whether acoustic responses could be recorded. By placing samples in the near-field of the excitation, we observed frequency-domain acoustic responses from tissues responding to CW radiofrequency excitation. Frequency analysis revealed the generation of 2nd harmonic mechanical waves. This discovery of non-linear responses can lead to alternative measurement concepts of CW radiofrequency deposition in matter and tissues. We offer the theoretical mainframe and discuss sensing applications involving the direct measurement of second harmonic responses representative of CW RF energy deposition in matter. © 2013 AIP Publishing LLC.

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) Aristotle University of Thessaloniki GR Greece (GR)

How to cite

APA:

Kellnberger, S., Omar, M., Sergiadis, G., & Ntziachristos, V. (2013). Second harmonic acoustic responses induced in matter by quasi continuous radiofrequency fields. Applied Physics Letters, 103(15). https://doi.org/10.1063/1.4824709

MLA:

Kellnberger, Stephan, et al. "Second harmonic acoustic responses induced in matter by quasi continuous radiofrequency fields." Applied Physics Letters 103.15 (2013).

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