Optoacoustic generation of high frequency sound for 3-D ultrasonic imaging in medicine M. O'Donnell, Y. Hou, J.-S. Kim, S. Ashkenazi, S.-W. Huang and L. J. Guo Eur. Phys. J. Special Topics, 153 (2008) 53-58 Published online: 12 March 2008 DOI: 10.1140/epjst/e2008-00392-9