Book ChapterIntegrating Detectors for Photoacoustic Imaging by Hubert Grün, Thomas Berer, Karoline Felbermayer, Peter Burgholzer, Markus Holotta, Gerhard Zangerl, Robert Nuster and Günther Paltaufin the book "Femtosecond-Scale Optics" edited by Anatoli V. Andreev, ISBN 978-953-307-769-7, InTech, November 11, 2011