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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)
Verlagsversion Volltext DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
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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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Thermoacoustic Tomography ; Biological Tissues ; Breast-cancer ; In-vivo
ISSN (print) / ISBN 0003-6951
e-ISSN 1077-3118
Quellenangaben Band: 103, Heft: 15, Seiten: , Artikelnummer: 153706 Supplement: ,
Verlag American Institute of Physics (AIP)
Begutachtungsstatus Peer reviewed