Sonja Franke-Arnold is a Research Councils UK Fellow and since 2005 a lecturer@the University of Glasgow. She received her doctorate from the University of Innsbruck in 1999. She has previously held a Royal Society of Edinburgh and a Dorothy Hodgkin Research Fellowship. Her interests include both theoretical and experimental aspects of atom optics, quantum optics and orbital angular momentum. Address: Department of Physics and Astronomy, Kelvin Building, University of Glasgow, Glasgow G12 8QQ, Scotland. Internet: s.franke-arnold@physics.gla.ac.uk