We are very interested in extracting information from scattered waves in heterogeneous media. Indoors, these waves have ultrasonic frequencies, excited and detected with lasers. Outside, our waves are in the seismic frequency band.

Seismic Station AUCK is part of our Ru Network of school seismometers

As our wavelengths span orders of magnitudes, so do our applications. Outside, we target the Auckland Volcanic Field, as well as geothermal exploration, and micro-seismicity for fluid reservoir characterization. In the laboratory, we do rock physics in collaboration with the PORO lab, ice physics, and medical imaging.

News

  • Laser ultrasonics on ice cores
    Many years ago, Andrei Kurbatov asked us if we could do laser ultrasound on ice cores, during half time of an international football match we were watching in Golden, Colorado. Dylan Mikesell started these measurements in a home-made refridgerator in the Physical Acoustics Labd as a research project toward his undergraduate degree at Colorado School…
  • A new paper on Marchenko-equation medical imaging
    Our collaboration with TU Delft has led to a new publication in the Journal of the Acoustical Society of America. Led by Joost van der Neut and Jami Johnson, this article adds the Marchenko equation to our tool set to image ultrasonic and photoacoustic data for medical applications. Perfect timing, Jami, for your PhD thesis…
  • Resolution test for tomography of the AVF using regional events
    Following a resolution test of tomography of the AVF using global teleseismic sources, we perform a separate test considering the local events with Nick Rawlinson's FMTOMO┬ápackage. The events considered have paths that involve direct and up-going waves (little p and s, as opposed to P and S in the teleseismic tomography). …

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