First lasing and operation of an ångstrom-wavelength free-electron laser

Authors: P. Emma, R. Akre, John Arthur, R. M. Bionta, C. Bostedt, John D. Bozek, A. Brachmann, P. H. Bucksbaum, Ryan Coffee, F.-J. Decker, Yuantao Ding, D.H. Dowell, S. Edstrom, A. Fisher, J. Frisch, S. Gilevich, J. B. Hastings, G. Hays, Ph. Hering, Zhirong Huang, R. Iverson, H. Loos, M. Messerschmidt, A. Miahnahri, Stefan Moeller, H.-D. Nuhn, G. Pile, Daniel Ratner, Jeffrey A. Rzepiela, D. Schultz, T. Smith, P.M. Stefan, Harland G. Tompkins, J. Turner, J. Welch, William E. White, Juhao Wu, G. Yocky, J. Galayda - Nature Photonics 2010 cited by 3,132