It took a while (doesn’t it always..) but some of the work done during last year’s academic leave at UofT got published. Check it out here:
N. Baddour and A. Mandelis, The Effect of Acoustic Impedance in Subsurface Absorber Geometry Reconstruction using 1D Time and Frequency-Domain Photoacoustics, Photoacoustics, Vol. 3, Issue 4, December 2015, pp. 132–142, dx.doi.org/10.1016/j.pacs.2015.10.001.