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Kellnberger, S. ; Omar, M. ; Sergiadis, G.* ; Ntziachristos, V.

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

Appl. Phys. Lett. 103:153706 (2013)
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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.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Thermoacoustic Tomography ; Biological Tissues ; Breast-cancer ; In-vivo
Language english
Publication Year 2013
HGF-reported in Year 2013
ISSN (print) / ISBN 0003-6951
e-ISSN 1077-3118
Journal Applied Physics Letters
Quellenangaben Volume: 103, Issue: 15, Pages: , Article Number: 153706 Supplement: ,
Publisher American Institute of Physics (AIP)
Reviewing status Peer reviewed
Institute(s) Institute of Biological and Medical Imaging (IBMI)
POF-Topic(s) 30205 - Bioengineering and Digital Health
Research field(s) Enabling and Novel Technologies
PSP Element(s) G-505500-001
DOI 10.1063/1.4824709
WOS ID WOS:000325779700090
Erfassungsdatum 2013-11-14
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