Nonlinear ultrasonic phased array imaging

J. N. Potter*, A. J. Croxford, P. D. Wilcox

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

89 Citations (Scopus)
581 Downloads (Pure)


This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially isolated wave distortion is inferred without requiring interrogation of the wave at the inspection point, thereby allowing nonlinear imaging through depth.

Original languageEnglish
Article number144301
Number of pages5
JournalPhysical Review Letters
Issue number14
Publication statusPublished - 3 Oct 2014


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