Single-shot determination of focused FEL wave fields using iterative phase retrieval

Masoud Mehrjoo, Klaus Giewekemeyer, Patrik Vagovič, Stephan Stern, Richard Bean, Marc Messerschmidt, Barbara Keitel, Elke Plönjes, Marion Kuhlmann, Tobias Mey, Evgeny A. Schneidmiller, Mikhail V. Yurkov, Torsten Limberg, Adrian P. Mancuso