Selected Publications

Recent results (update: February 8, 2012):

1. S. Hellmann, C. Sohrt, M. Beye, T. Rohwer, F. Sorgenfrei, M. Marczynski-Bühlow, M. Kalläne, H. Redlin, F. Hennies, M. Bauer, A. Föhlisch, L. Kipp, W. Wurth and K. Rossnagel,
   Time-resolved x-ray photoelectron spectroscopy at FLASH,
   New J. Phys. 14, 013062 (2012); http://dx.doi.org/10.1088/1367-2630/14/1/013062
   
   
2. B. Iwan, J. Andreasson, A. Andrejczuk, E. Abreu, M. Bergh, C. Caleman, A.J. Nelson, S. Bajt, J. Chalupsky, H.N. Chapman, R.R. Fäustlin, V. Hajkova, P.A. Heimann, B. Hjörvarsson, L. Juha, D. Klinger, J. Krzywinski, B. Nagler, G.K.Pálsson, W. Singer, M.M. Seibert, R. Sobierajski, S. Toleikis, T. Tschentscher, S.M. Vinko, R.W. Lee, J. Hajdu, N. Tîmneanu,
   TOF-OFF: A method for determining focal positions in tightly focused free-electron laser experiments by measurement of ejected ions,
   High Energy Density Phys. 7, 336-342 (2011); http://dx.doi.org/10.1016/j.hedp.2011.06.008
   
   
3. S. Roling, B. Siemer, M. Wöstmann, H. Zacharias, R. Mitzner, A. Singer, K. Tiedtke, and I.A. Vartanyants,
   Temporal and spatial coherence properties of free-electron-laser pulses in the extreme
   ultraviolet regime,
   Phys. Rev. ST Accel. Beams 14, 080701 (2011); http://dx.doi.org/10.1103/PhysRevSTAB.14.080701
   
   
4. Björn Siemer, Tim Hoger, Marco Rutkowski, Stefan Düsterer, and Helmut Zacharias,
   XUV Free-Electron Laser Desorption of NO from Graphite (0001),
   J. Phys. Chem. A 115, 7356-7361 (2011); http://dx.doi.org/10.1021/jp2011793
   
   
5. W. Wierzchowski, K. Wieteska, T. Balcer, D. Klinger, R. Sobierajski, D. Żymierska, J. Chalupský, V. Hájková, T. Burian, A.J. Gleeson, L. Juha, K. Tiedtke, S. Toleikis, L. Vyśın, H. Wabnitz and J. Gaudin,
   X-ray topographic investigation of the deformation field around spots irradiated by FLASH single pulses,
   Radiation Physics and Chemistry 80, 1036-1040 (2011); http://dx.doi.org/10.1016/j.radphyschem.2011.02.034
   
   
6. T. Gorniak, R. Heine, A.P. Mancuso, F. Staier, C. Christophis, M.E. Pettitt, A. Sakdinawat, R. Treusch, N. Guerassimova, J. Feldhaus, C. Gutt, G. Grübel, S. Eisebitt, A. Beyer, A. Gölzhäuser, E. Weckert, M. Grunze, I.A. Vartanyants, and A. Rosenhahn,
   X-ray holographic microscopy with zone plates applied to biological samples in the water window using 3rd harmonicradiation from the free-electron laser FLASH,
   Opt. Express 19, 11059-11070 (2011); http://dx.doi.org/10.1364/OE.19.011059
   
   
7. N. Pontius, T. Kachel, C. Schüßler-Langeheine, W.F. Schlotter, M. Beye, F. Sorgenfrei, C.F. Chang, A. Föhlisch, W. Wurth, P. Metcalf, I. Leonov, A. Yaresko, N. Stojanovic, M. Berglund, N. Guerassimova, S. Düsterer, H. Redlin, and H.A. Dürr,
   Time-resolved resonant soft x-ray diffraction with free-electron lasers: Femtosecond dynamics across the Verwey transition in magnetite,
   Appl. Phys. Lett. 98, 182504 (2011); http://dx.doi.org/10.1063/1.3584855
   
   
8. E. Galtier, F.B. Rosmej, T. Dzelzainis, D. Riley, F.Y. Khattak, P. Heimann, R.W. Lee, A.J. Nelson, S.M. Vinko, T. Whitcher, J.S. Wark, T. Tschentscher, S. Toleikis, R.R. Fäustlin, R. Sobierajski, M. Jurek, L. Juha, J. Chalupský, V. Hajkova, M. Kozlova, J. Krzywinski, and B. Nagler,
   Decay of crystalline order and equilibration during solid-to-plasma transition induced by 20-fs microfocused 92 eV Free Electron Laser pulses,
   Phys. Rev. Lett. 106, 164801 (2011); http://dx.doi.org/10.1103/PhysRevLett.106.164801
   
   
9. A. Rouzée, P. Johnsson, E.V. Gryzlova, H. Fukuzawa, A. Yamada,W. Siu, Y. Huismans, E. Louis, F. Bijkerk, D.M.P. Holland, A.N. Grum-Grzhimailo, N.M. Kabachnik, M.J.J. Vrakking, and K. Ueda,
   Angle-resolved photoelectron spectroscopy of sequential three-photon triple ionization of neon at 90.5 eV photon energy,
   Phys. Rev. A 83, 031401(R) (2011); http://dx.doi.org/10.1103/PhysRevA.83.031401
   
   
10. E. Galtier, F.B. Rosmej, O. Renner, L. Juha, J. Chalupsky, J.-C. Gauthier, S. White, D. Riley, S. Vinko, T. Witcher, J. Wark, B. Nagler, R.W. Lee, A.J. Nelson, S.Toleikis,
    Observation of K-Shell Soft X Ray Emission of Nitrogen Irradiated by XUV-Free Electron Laser FLASH at Intensities Greater than 10¹⁶W/cm²,
    Contributions to Plasma Physics 51, 284-287 (2011); http://dx.doi.org/10.1002/ctpp.201000045
    
    
11. J. Andreasson, B. Iwan, A. Andrejczuk, E. Abreu, M. Bergh, C. Caleman, A.J. Nelson, S. Bajt, J. Chalupsky, H.N. Chapman, R.R. Fäustlin, V. Hajkova, P.A. Heimann, B. Hjörvarsson, L. Juha, D. Klinger, J. Krzywinski, B. Nagler, G.K. Pálsson, W. Singer, M.M. Seibert, R. Sobierajski, S. Toleikis, T. Tschentscher, S.M. Vinko, R.W. Lee, J. Hajdu, and N.Tîmneanu,
    Saturated ablation in metal hydrides and acceleration of protons and deuterons to keV energies with a soft-x-ray laser,
    Phys. Rev. E 83, 016403 (2011); http://dx.doi.org/10.1103/PhysRevE.83.016403
    
    
12. F. Tavella, N. Stojanovic, G. Geloni and M. Gensch,
    Few-femtosecond timing at fourth-generation X-ray light sources,
    Nature Photonics, published online: 30 January 2011, http://dx.doi.org/10.1038/nphoton.2010.311
    
    
13. Maria Krikunova, Theophilos Maltezopoulos, Philipp Wessels, Moritz Schlie, Armin Azima, Marek Wieland, and Markus Drescher,
    Ultrafast photofragmentation dynamics of molecular iodine driven with timed XUV and near-infrared light pulses,
    J. Chem. Phys. 134, 024313 (2011); http://dx.doi.org/10.1063/1.3528722
    
    
14. C.M. Günther, B. Pfau, R. Mitzner, B. Siemer, S. Roling, H. Zacharias, O. Kutz, I. Rudolph, D. Schondelmaier, R. Treusch and S. Eisebitt,
    Sequential Femtosecond X-Ray Imaging,
    Nature Photonics 5, 99-102 (2011); http://dx.doi.org/10.1038/nphoton.2010.287
    
    
15. R. Sobierajski, S. Bruijn, A.R. Khorsand, E. Louis, R.W.E. van de Kruijs, T. Burian, J. Chalupsky, J. Cihelka, A. Gleeson, J. Grzonka, E.M. Gullikson, V. Hajkova, S. Hau-Riege, L. Juha, M. Jurek, D. Klinger, J. Krzywinski, R. London, J.B. Pelka, T. Płociński, M. Rasiński, K. Tiedtke, S. Toleikis, L. Vysin, H. Wabnitz, and F. Bijkerk,
    Damage mechanisms of MoN/SiN multilayer optics for next-generation pulsed XUV light sources,
    Opt. Express 19, 193-205 (2011); http://dx.doi.org/10.1364/OE.19.000193
    
    
16. Y.H. Jiang, A. Rudenko, O. Herrwerth, L. Foucar, M. Kurka, K.U. Kühnel, M. Lezius, M.F. Kling, J. van Tilborg, A. Belkacem, K. Ueda, S. Düsterer, R. Treusch, C.D. Schröter, R. Moshammer, and J. Ullrich,
    Ultrafast Extreme Ultraviolet Induced Isomerization of Acetylene Cations,
    Phys. Rev. Lett. 105, 263002 (2010); http://dx.doi.org/10.1103/PhysRevLett.105.263002
    
    
17. L. Lammich, C. Domesle, B. Jordon-Thaden, M. Förstel, O. Heber, S. Klumpp, M. Martins, N. Guerassimova, R. Treusch, J. Ullrich, U. Hergenhahn, H.B. Pedersen, and A. Wolf,
    Fragmentation pathways of H⁺(H2O)₂ after XUV photoionization,
    Phys. Rev. Lett. 105, 253003 (2010); http://dx.doi.org/10.1103/PhysRevLett.105.253003
    
    
18. B. Siemer, T. Olsen, T. Hoger, M. Rutkowski, C. Thewes, S. Düsterer, J. Schiøtz, H. Zacharias,
    Desorption of H atoms from graphite (0 0 0 1) using XUV free electron laser pulses,
    Chem. Phys. Lett. 500, 291-294 (2010); http://dx.doi.org/10.1016/j.cplett.2010.10.040
    
    
19. S. Hellmann, M. Beye, C. Sohrt, T. Rohwer, F. Sorgenfrei, H. Redlin, M. Kalläne, M. Marczynski-Bühlow, F. Hennies, M. Bauer, A. Föhlisch, L. Kipp, W. Wurth, and K.Rossnagel,
    Ultrafast Melting of a Charge-Density Wave in the Mott Insulator 1T-TaS₂,
    Phys. Rev. Lett. 105, 187401 (2010); http://dx.doi.org/10.1103/PhysRevLett.105.187401
    
    
20. Y.H. Jiang, T. Pfeifer, A. Rudenko, O. Herrwerth, L. Foucar, M. Kurka, K.U. Kühnel, M. Lezius, M.F. Kling, X. Liu, K. Ueda, S. Düsterer, R. Treusch, C.D. Schröter, R. Moshammer, and J. Ullrich,
    Temporal coherence effects in multiple ionization of N₂ via XUV pump-probe autocorrelation,
    Phys. Rev. A 82, 041403(R) (2010); http://dx.doi.org/10.1103/PhysRevA.82.041403
    
    
21. Thomas Pfeifer, Yuhai Jiang, Stefan Düsterer, Robert Moshammer, and Joachim Ullrich,
    Partial-coherence method to model experimental free-electron laser pulse statistics,
    Opt. Lett. 35, 3441-3443 (2010); http://dx.doi.org/10.1364/OL.35.003441
    
    
22. M.J. Bogan, S. Boutet, A. Barty, W.H. Benner, M. Frank, L. Lomb, R. Shoeman, D. Starodub, M.M. Seibert, S.P. Hau-Riege, B. Woods, P. Decorwin-Martin, S. Bajt, J. Schulz, U. Rohner, B. Iwan, N. Timneanu, S. Marchesini, I. Schlichting, J. Hajdu, and H.N. Chapman,
    Single-shot femtosecond x-ray diffraction from randomly oriented ellipsoidal nanoparticles,
    Phys. Rev. ST Accel. Beams 13, 094701 (2010); http://dx.doi.org/10.1103/PhysRevSTAB.13.094701
    
    
23. B. Pfau, C.M. Günther, S. Schaffert, R. Mitzner, B. Siemer, S. Roling, H. Zacharias, O. Kutz, I. Rudolph, R. Treusch and S. Eisebitt,
    Femtosecond pulse x-ray imaging with a large field of view,
    New J. Phys. 12, 095006 (2010); http://dx.doi.org/10.1088/1367-2630/12/9/095006
    (Focus issue on "X-ray sources with high coherence")
    
    
24. S Toleikis, T Bornath, T Döppner, S Düsterer, R R Fäustlin, E Förster, C Fortmann, S H Glenzer, S Göde, G Gregori, R Irsig, T Laarmann, H J Lee, B Li, K-H Meiwes-Broer, J Mithen, B Nagler, A Przystawik, P Radcliffe, H Redlin, R Redmer, H Reinholz, G Röpke, F Tavella, R Thiele, J Tiggesbäumker, I Uschmann, S M Vinko, T Whitcher, U Zastrau, B Ziaja and T Tschentscher,
    Probing near-solid density plasmas using soft x-ray scattering,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194017 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194017
    
    
25. I A Vartanyants, A P Mancuso, A Singer, O M Yefanov and J Gulden,
    Coherence measurements and coherent diffractive imaging at FLASH,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194016 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194016
    
    
26. M Marvin Seibert, Sébastien Boutet, Martin Svenda, Tomas Ekeberg, Filipe R N C Maia, Michael J Bogan, Nicusor Tîmneanu, Anton Barty, Stefan Hau-Riege, Carl Caleman, Matthias Frank, Henry Benner, Joanna Y Lee, Stefano Marchesini, Joshua W Shaevitz, Daniel A Fletcher, Sasa Bajt, Inger Andersson, Henry N Chapman and Janos Hajdu,
    Femtosecond diffractive imaging of biological cells,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194015 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194015
    
    
27. Anton Barty,
    Time-resolved imaging using x-ray free electron lasers,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194014 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194014
    
    
28. Michael J Bogan, Dmitri Starodub, Christina Y Hampton and Raymond G Sierra,
    Single-particle coherent diffractive imaging with a soft x-ray free electron laser: towards soot aerosol morphology,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194013 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194013
    
    
29. Ulf Saalmann,
    Cluster nanoplasmas in strong FLASH pulses: formation, excitation and relaxation,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194012 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194012
    
    
30. C Bostedt, M Adolph, E Eremina, M Hoener, D Rupp, S Schorb, H Thomas, A R B de Castro and T Möller,
    Clusters in intense FLASH pulses: ultrafast ionization dynamics and electron emission studied with spectroscopic and scattering techniques,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194011 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194011
    
    
31. Markus Drescher, Ulrike Frühling, Maria Krikunova, Theophilos Maltezopoulos and Marek Wieland,
    Time-diagnostics for improved dynamics experiments at XUV FELs,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194010 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194010
    
    
32. J Hallmann, S Grübel, I Rajkovic, W Quevedo, G Busse, M Scholz, R More, M Petri and S Techert,
    First steps towards probing chemical systems and dynamics with free-electron laser radiation - case studies at the FLASH facility,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194009 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194009
    
    
33. S W Epp, J R Crespo López-Urrutia, M C Simon, T Baumann, G Brenner, R Ginzel, N Guerassimova, V Mäckel, P H Mokler, B L Schmitt , H Tawara and J Ullrich,
    X-ray laser spectroscopy of highly charged ions at FLASH,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194008 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194008
    
    
34. Andreas Wolf, Henrik B Pedersen, Lutz Lammich, Brandon Jordon-Thaden, Simon Altevogt, Christian Domesle, Uwe Hergenhahn, Marko Förstel and Oded Heber,
    Soft-x-ray fragmentation studies of molecular ions,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194007 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194007
    
    
35. M Meyer, J T Costello, S Düsterer, W B Li, and P Radcliffe,
    Two-colour experiments in the gas phase,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194006 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194006
    
    
36. M Richter, S V Bobashev, A A Sorokin, and K Tiedtke,
    Multiphoton ionization of atoms with soft x-ray pulses,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194005 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194005
    
    
37. A Rudenko, Y H Jiang, M Kurka, K U Kühnel, L Foucar, O Herrwerth, M Lezius, M F Kling, C D Schröter, R Moshammer and J Ullrich,
    Exploring few-photon, few-electron reactions at FLASH: from ion yield and momentum measurements to time-resolved and kinematically complete experiments,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194004 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194004
    
    
38. A Palacios, D A Horner, T N Rescigno and C W McCurdy,
    Two-photon double ionization of the helium atom by ultrashort pulses,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194003 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194003
    
    
39. J. Feldhaus,
    FLASH - the first soft x-ray free electron laser (FEL) user facility,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194002 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194002
    
    
40. Jochen R Schneider,
    FLASH - from accelerator test facility to the first single-pass soft x-ray free-electron
    laser,
    J. Phys. B: At. Mol. Opt. Phys. 43, 194001 (2010); http://dx.doi.org/10.1088/0953-4075/43/19/194001
    
    
41. Martin Beye, Florian Sorgenfrei, William F. Schlotter, Wilfried Wurth, and Alexander Föhlisch,
    The liquid-liquid phase transition in silicon revealed by snapshots of valence electrons,
    PNAS 107(39), 16772-16776 (2010); www.pnas.org/cgi/doi/10.1073/pnas.1006499107
    
    
42. M. Meyer, D. Cubaynes, J. Dardis, P. Hayden, P. Hough, V. Richardson, E.T. Kennedy, J.T. Costello, S. Düsterer, W.B. Li, P. Radcliffe, H. Redlin, J. Feldhaus, S.I. Strakhova, E.V. Gryzlova, A.N. Grum-Grzhimailo, R. Taïeb, and A. Maquet,
    Two-color experiments in the gas phase at FLASH,
    J. Electron Spectrosc. Relat. Phenom. 181, 111-115 (2010); http://dx.doi.org/10.1016/j.elspec.2010.05.015
    
    
43. N. Berrah, J. Bozek, J.T. Costello, S. Düsterer, L. Fang, J. Feldhaus, H. Fukuzawa, M. Hoener, Y.H. Jiang, P. Johnsson, E.T. Kennedy, M. Meyer, R. Moshammer, P. Radcliffe, M. Richter, A. Rouzée, A. Rudenko, A.A. Sorokin, K. Tiedtke, K. Ueda, J. Ullrich, and M.J.J. Vrakking,
    Non-linear processes in the interaction of atoms and molecules with intense EUV and X-ray fields from SASE free electron lasers (FELs),
    Journal of Modern Optics 57, 1015-1040 (2010); http://dx.doi.org/10.1080/09500340.2010.487946
    
    
44. H.B. Pedersen, L. Lammich, C. Domesle, B. Jordon-Thaden, O. Heber, J. Ullrich, R. Treusch, N. Guerassimova, and A. Wolf,
    Experimental investigation of dissociation pathways of cooled HeH⁺ following valence electron excitation at 32 nm by intense free-electron-laser radiation,
    Phys. Rev. A 82, 023415 (2010); http://dx.doi.org/10.1103/PhysRevA.82.023415
    
    
45. Christoph Bostedt, Heiko Thomas, Matthias Hoener, Thomas Möller, Ulf Saalmann, Ionuţ Georgescu, Christian Gnodtke and Jan-Michael Rost,
    Fast electrons from multi-electron dynamics in xenon clusters induced by inner-shell ionization,
    New J. Phys. 12, 083004 (2010); http://dx.doi.org/10.1088/1367-2630/12/8/083004
    
    
46. M. Kurka, J. Feist, D.A. Horner, A. Rudenko, Y.H. Jiang, K.U. Kühnel, L. Foucar, T.N. Rescigno, C.W. McCurdy, R. Pazourek, S. Nagele, M. Schulz, O. Herrwerth, M. Lezius, M.F. Kling, M. Schöffler, A. Belkacem, S. Düsterer, R. Treusch, B.I. Schneider, L.A. Collins, J. Burgdörfer, C.D. Schröter, R. Moshammer, and J. Ullrich,
    Differential cross sections for non-sequential double ionization of He by 52 eV photons from FLASH,
    New J. Phys. 12, 073035 (2010); http://dx.doi.org/10.1088/1367-2630/12/7/073035
    
    
47. V. Richardson, J.T. Costello, D. Cubaynes, S. Düsterer, J. Feldhaus, H.W. van der Hart, P. Juranić, W.B. Li, M. Meyer, M. Richter, A.A. Sorokin, and K.Tiedke,
    Two-Photon Inner-Shell Ionization in the Extreme Ultraviolet,
    Phys. Rev. Lett. 105, 013001 (2010); http://dx.doi.org/10.1103/PhysRevLett.105.013001
    
    
48. N.D. Loh, M.J. Bogan, V. Elser, A. Barty, S. Boutet, S. Bajt, J. Hajdu, T. Ekeberg, F.R.N.C. Maia, J. Schulz, M.M. Seibert, B. Iwan, N.Timneanu, S.Marchesini, I. Schlichting, R.L. Shoeman, L. Lomb, M. Frank, M. Liang, and H.N. Chapman,
    Cryptotomography: Reconstructing 3D Fourier Intensities from Randomly Oriented Single-Shot Diffraction Patterns,
    Phys. Rev. Lett. 104, 225501 (2010); http://dx.doi.org/10.1103/PhysRevLett.104.225501
    
    
49. M. Meyer, D. Cubaynes, V. Richardson, J.T. Costello, P. Radcliffe, W.B. Li, S. Düsterer, S. Fritzsche, A. Mihelic, K.G. Papamihail, and P. Lambropoulos,
    Two-Photon Excitation and Relaxation of the 3d-4d Resonance in Atomic Kr,
    Phys. Rev. Lett. 104, 213001 (2010); http://dx.doi.org/10.1103/PhysRevLett.104.213001
    
    
50. S.M. Vinko, U. Zastrau, S. Mazevet, J. Andreasson, S. Bajt, T. Burian, J. Chalupsky, H.N. Chapman, J. Cihelka, D. Doria, T. Döppner, S. Düsterer, T. Dzelzainis, R.R. Fäustlin, C. Fortmann, E. Förster, E. Galtier, S.H. Glenzer, S. Göde, G. Gregori, J. Hajdu, V. Hajkova, P.A. Heimann, R. Irsig, L. Juha, M. Jurek, J. Krzywinski, T. Laarmann, H.J. Lee, R.W. Lee, B. Li, K.-H. Meiwes-Broer, J.P. Mithen, B. Nagler, A.J. Nelson, A. Przystawik, R. Redmer, D. Riley, F. Rosmej, R. Sobierajski, F. Tavella, R. Thiele, J. Tiggesbäumker, S. Toleikis, T. Tschentscher, L. Vysin, T.J. Whitcher, S. White, and J.S. Wark,
    Electronic Structure of an XUV Photogenerated Solid-Density Aluminum Plasma,
    Phys. Rev. Lett. 104, 225001 (2010); http://dx.doi.org/10.1103/PhysRevLett.104.225001
    
    
51. Y.H. Jiang, A. Rudenko, J.F. Pérez-Torres, O. Herrwerth, L. Foucar, M. Kurka, K.U. Kühnel, M. Toppin, E. Plésiat, F. Morales, F. Martín, M. Lezius, M.F. Kling, T. Jahnke, R. Dörner, J.L. Sanz-Vicario, J. van Tilborg, A. Belkacem, M. Schulz, K. Ueda, T.J.M. Zouros, S. Düsterer, R. Treusch, C.D. Schröter, R. Moshammer, and J. Ullrich,
    Investigating two-photon double ionization of D₂ by XUV-Pump-XUV-Probe experiments,
    Phys. Rev. A 81, 051402(R) (2010); http://dx.doi.org/10.1103/PhysRevA.81.051402
    
    
52. R. Treusch and J. Feldhaus
    FLASH: new opportunities for (time-resolved) coherent imaging of nanostructures,
    New J. Phys. 12, 035015 (2010); http://dx.doi.org/10.1088/1367-2630/12/3/035015
    (Focus issue on "X-ray sources with high coherence")
    
    
53. A.P. Mancuso, Th. Gorniak, F. Staier, O.M. Yefanov, R. Barth, C. Christophis, B. Reime, J. Gulden, A. Singer, M.E. Pettit, Th. Nisius, Th. Wilhein, C. Gutt, G. Grübel, N. Guerassimova, R. Treusch, J. Feldhaus, S. Eisebitt, E. Weckert, M. Grunze, A. Rosenhahn and I.A. Vartanyants,
    Coherent Imaging of Biological Samples with Femtosecond Pulses at the Free Electron Laser FLASH,
    New J. Phys. 12, 035003 (2010); http://dx.doi.org/10.1088/1367-2630/12/3/035003
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