In accordance with preferred embodiments of the present invention, a method for imaging tissue, for example, includes the steps of mounting the tissue on a computer controlled stage of a microscope, determining volumetric imaging parameters, directing at least two photons into a region of interest, scanning...http://www.google.de/patents/US7372985?utm_source=gb-gplus-sharePatent US7372985 - Systems and methods for volumetric tissue scanning microscopy