German scientist Theodor Haensch from the Ludwig-Maximilians-University in Munich smiles after the announcement of the Royal Swedish Academy of Sciences, that he won the 2005 Nobel Physics prize for work in the field of optics, in Munich October 4, 2005. Haensch won the prize together with the Americans Roy Glauber and John Hall for the theoretical description of the behaviour of light particles. REUTERS/Michaela Rehle