Version 71.1 by erkben on 2020/06/15 11:13

Show last authors
1 {{layout}}
2 {{layout-section ac:type="two_equal"}}
3 {{layout-cell}}
4 {{note}}
5 **Collection of THE reference papers from FLASH**
6
7 **Last update:** UNDER CONSTRUCTION, based on status 2016, partially updated {{date value="2020-05-28" format="yyyy-MM-dd"/}}
8
9 **In case of multiple references, the most complete or up-to-date should be 1st.**
10 {{/note}}
11 {{/layout-cell}}
12
13 {{layout-cell}}
14 **ToDo:**
15
16
17
18 {{tasks-report-macro pages="163925901" pageSize="10"/}}
19 {{/layout-cell}}
20 {{/layout-section}}
21
22 {{layout-section ac:type="single"}}
23 {{layout-cell}}
24 \\
25 {{/layout-cell}}
26 {{/layout-section}}
27
28 {{layout-section ac:type="single"}}
29 {{layout-cell}}
30
31
32 {{toc exclude="Task report"/}}
33 {{/layout-cell}}
34 {{/layout-section}}
35
36 {{layout-section ac:type="single"}}
37 {{layout-cell}}
38 \\
39 {{/layout-cell}}
40 {{/layout-section}}
41
42 {{layout-section ac:type="single"}}
43 {{layout-cell}}
44 = FEL Machine =
45
46 1. W. Ackermann et al.,
47 //Operation of a Free Electron Laser in the Wavelength Range from the Extreme Ultraviolet to the Water Window//,
48 Nature Photonics **1**, 336-342 (2007);
49 [[http:~~/~~/dx.doi.org/10.1038/nphoton.2007.76>>url:http://dx.doi.org/10.1038/nphoton.2007.76||shape="rect"]]
50
51 **FLASH2 and other recent developments:**
52
53 1. B. Faatz et al.,
54 //Simultaneous operation of two soft x-ray free-electron lasers driven by one linear accelerator//,
55 New J. Phys. **18**, 062002 (2016);
56 [[http:~~/~~/dx.doi.org/10.1088/1367-2630/18/6/062002>>url:http://dx.doi.org/10.1088/1367-2630/18/6/062002||shape="rect"]]
57 1. B. Faatz, M. Braune, O. Hensler, K. Honkavaara, R. Kammering, M. Kuhlmann, E. Ploenjes, J. Roensch-Schulenburg, E. Schneidmiller, S. Schreiber, K. Tiedtke, M. Tischer, R. Treusch, M. Vogt, W. Wurth, M. Yurkov and J. Zamella,
58 //The FLASH Facility: Advanced Options for FLASH2 and Future Perspectives//,
59 Appl. Sci. **7**, 1114 (2017);
60 [[http:~~/~~/dx.doi.org/10.3390/app7111114>>url:http://dx.doi.org/10.3390/app7111114||shape="rect"]]\\
61 1. J. Rönsch-Schulenburg, B. Faatz, K. Honkavaara, M. Kuhlmann, S. Schreiber, R. Treusch,
62 //Experience with Multi-Beam and Multi-Beamline FEL-Operation//,
63 Proc. IPAC17, Copenhagen, Denmark (2017),
64 J.Phys.: Conf. Ser. **874**, 012023 (2017);
65 [[http:~~/~~/dx.doi.org/10.1088/1742-6596/874/1/012023>>url:http://dx.doi.org/10.1088/1742-6596/874/1/012023||shape="rect"]]\\
66 1. S. Toleikis for the whole FLASH team,
67 //The FLASH facility - current status in 2018 and future upgrade plans//,
68 AIP Conf. Proc. **2054**, 030015 (2019);
69 [[http:~~/~~/dx.doi.org/10.1063/1.5084578>>url:http://dx.doi.org/10.1063/1.5084578||shape="rect"]]
70
71 == FEL machine diagnostics ==
72
73 **a) Longitudinal FEL beam diagnostics (LOLA)**
74
75 1. C. Behrens, N. Gerasimova, Ch. Gerth, B. Schmidt, E. A. Schneidmiller, S. Serkez, S. Wesch, and M. V. Yurkov,
76 Constraints on photon pulse duration from longitudinal electron beam diagnostics at a soft x-ray free-electron laser,
77 Phys. Rev. ST Accel. Beams 15, 030707,
78 [[https:~~/~~/doi.org/10.1103/PhysRevSTAB.15.030707>>url:https://doi.org/10.1103/PhysRevSTAB.15.030707||shape="rect"]]\\
79
80 **b) Synchronization and Electron Bunch Arrvial time Monitor (BAM)**
81
82 1. Schulz, I. Grguraš, C. Behrens, H. Bromberger, J.T. Costello, M.K. Czwalinna, M. Felber, M.C. Hoffmann, M. Ilchen, H.Y. Liu, T. Mazza, M. Meyer, S. Pfeiffer, P. Prędki, S. Schefer, C. Schmidt, U. Wegner, H. Schlarb & A.L. Cavalieri,
83 //Femtosecond all-optical synchronization of an X-ray free-electron laser//,
84 Nature Communications **6**, 5938 (2015);
85 [[__http:~~/~~/dx.doi.org/10.1038/ncomms6938__>>url:http://dx.doi.org/10.1038/ncomms6938||shape="rect"]]
86 1. (((
87 A. Angelovski, et al.
88 //High bandwidth pickup design for bunch arrival-time monitors for free-electron lasers//,
89 Phys. Rev. Lett. Spec. Top.– Accelerators and Beams **15**, 112803 (2012)
90 [[https:~~/~~/link.aps.org/pdf/10.1103/PhysRevSTAB.15.112803>>url:https://link.aps.org/pdf/10.1103/PhysRevSTAB.15.112803||shape="rect"]]
91 )))
92 1. F. Löhl, V. Arsov, M. Felber, K. Hacker, W. Jalmuzna, B. Lorbeer, F. Ludwig, K.-H. Matthiesen, H. Schlarb, B. Schmidt, P. Schmüser, S. Schulz, J. Szewinski, A. Winter, and J. Zemella,
93 //Electron Bunch Timing with Femtosecond Precision in a Superconducting Free-Electron Laser,
94 //Phys. Rev. Lett. **104**, 144801 (2010);
95 [[http:~~/~~/dx.doi.org/10.1103/PhysRevLett.104.144801>>url:http://dx.doi.org/10.1103/PhysRevLett.104.144801||shape="rect"]]
96
97 ----
98
99 = User Facility/Beamline descriptions and Reviews =
100
101 1. K. Tiedtke, A. Azima, N. von Bargen, L. Bittner, S. Bonfigt, S. Düsterer, B. Faatz, U. Frühling, M. Gensch, Ch. Gerth, N. Guerassimova, U. Hahn, T. Hans, M. Hesse, K. Honkavaara, U. Jastrow, P. Juranic, S. Kapitzki, B. Keitel, T. Kracht, M. Kuhlmann, W. B. Li, M. Martins, T. Núñez, E. Plönjes, H. Redlin, E. L. Saldin, E. A. Schneidmiller, J. R. Schneider, S. Schreiber, N. Stojanovic, F. Tavella, S. Toleikis, R. Treusch, H. Weigelt, M. Wellhöfer, H. Wabnitz, M. V. Yurkov and J. Feldhaus,
102 //The soft X-ray free-electron laser FLASH at DESY: beamlines, diagnostics, and end stations//,
103 New J. Phys. **11**, 023029 (2009);
104 [[http:~~/~~/dx.doi.org/10.1088/1367-2630/11/2/023029>>url:http://dx.doi.org/10.1088/1367-2630/11/2/023029||shape="rect"]]
105
106 **Reviews**
107
108 1. Jörg Rossbach, Jochen R. Schneider, Wilfried Wurth,
109 //10 years of pioneering X-ray science at the Free-Electron Laser FLASH at DESY//,
110 Physics Reports **808**, 1-74 (2019);
111 [[https:~~/~~/doi.org/10.1016/j.physrep.2019.02.002>>url:https://doi.org/10.1016/j.physrep.2019.02.002||shape="rect"]]
112 1. Jochen R. Schneider,
113 //FLASH - from accelerator test facility to the first single-pass soft x-ray free-electron laser//,
114 J. Phys. B: At. Mol. Opt. Phys. **43**, 194001 (2010);
115 [[http:~~/~~/dx.doi.org/10.1088/0953-4075/43/19/194001>>url:http://dx.doi.org/10.1088/0953-4075/43/19/194001||shape="rect"]]
116 1. J. Feldhaus,
117 //FLASH - the first soft x-ray free electron laser (FEL) user facility//,
118 J. Phys. B: At. Mol. Opt. Phys. **43**, 194002 (2010);
119 [[http:~~/~~/dx.doi.org/10.1088/0953-4075/43/19/194002>>url:http://dx.doi.org/10.1088/0953-4075/43/19/194002||shape="rect"]]
120
121 == PG monochromator beamline ==
122
123 1. M. Martins, M. Wellhöfer, J.T. Hoeft, W. Wurth, J. Feldhaus, and R. Follath,
124 //Monochromator beamline for FLASH//,
125 Rev. Sci. Instrum. **77**, 115108 (2006);
126 [[http:~~/~~/dx.doi.org/10.1063/1.2364148>>url:http://dx.doi.org/10.1063/1.2364148||shape="rect"]]
127 1. N. Gerasimova, S. Dziarzhytski, J. Feldhaus,
128 //The monochromator beamline at FLASH: performance, capabilities and upgrade plans//,
129 Journal of Modern Optics **58**, 1480-1485 (2011); 
130 [[http:~~/~~/dx.doi.org/10.1080/09500340.2011.588344>>url:http://dx.doi.org/10.1080/09500340.2011.588344||shape="rect"]]
131
132 == THz Beamline ==
133
134 1. M. Gensch, L. Bittner, A. Chesnov, H. Delsim-Hashemi, M. Drescher, B. Faatz, J. Feldhaus, U. Fruehling, G.A. Geloni, Ch. Gerth, O. Grimm, U. Hahn, M. Hesse, S. Kapitzki, V. Kocharyan, O. Kozlov, E. Matyushevsky, N. Morozov, D. Petrov, E. Ploenjes, M. Roehling,  J. Rossbach, E.L. Saldin, B. Schmidt, P. Schmueser, E.A. Schneidmiller, E. Syresin, A. Willner and M.V. Yurkov,
135 //New infrared undulator beamline at FLASH//,
136 Infrared Phys. Technol. **51**, 423-425 (2008);
137 [[http:~~/~~/dx.doi.org/10.1016/j.infrared.2007.12.032>>url:http://dx.doi.org/10.1016/j.infrared.2007.12.032||shape="rect"]]\\
138 1. E. Zapolnova, , T. Golz, R. Pan, K. Klose, S. Schreiber and N. Stojanovic.
139 //THz pulse doubler at FLASH: double pulses for pump–probe experiments at X-ray FELs//,
140 J. Synchrotron Rad. **25**, 39-43 (2018);
141 [[https:~~/~~/doi.org/10.1107/S1600577517015442>>url:https://doi.org/10.1107/S1600577517015442||shape="rect"]]
142 1. R. Pan, E. Zapolnova, T. Golz, A.J. Krmpot, M.D. Rabasovic, J. Petrovic, V. Asgekar, B. Faatz, F. Tavella, A. Perucchi, S. Kovalev, B. Green, G. Geloni, T. Tanikawa, M. Yurkov, E. Schneidmiller, M. Gensch and N. Stojanovic,
143 //Photon diagnostics at the FLASH THz beamline//,
144 J. Synchrotron Rad. **26**, 700-707 (2019);
145 [[https:~~/~~/doi.org/10.1107/S1600577519003412>>url:https://doi.org/10.1107/S1600577519003412||shape="rect"]]
146
147 == CAMP chamber and BL1 (after 2014) ==
148
149 1. (((
150 Benjamin Erk, Jan P. Müller, Cédric Bomme, Rebecca Boll, Günter Brenner, Henry Chapman, Jonathan Correa, Stefan Düsterer, Siarhei Dziarzhytski, Stefan Eisebitt, Heinz Graafsma, Sören Grunewald, Lars Gumprecht, Robert Hartmann, Günter Hauser, Barbara Keitel, Clemens von Korff Schmising, Marion Kuhlmann, Bastian Manschwetus, Laurent Mercadier, Erland Müller, Christopher Passow, Elke Plönjes, Daniel Ramm, Dimitrios Rompotis, Artem Rudenko, Daniela Rupp, Mario Sauppe, Frank Siewert, Dieter Schlosser, Lothar Strüder, Angad Swiderski, Simone Techert, Kai Tiedtke, Thomas Tilp, Rolf Treusch, Ilme Schlichting, Joachim Ullrich, Robert Moshammer, Thomas Möller and Daniel Rolles,
151 //CAMP@FLASH: an end-station for imaging, electron- and ion-spectroscopy, and pump–probe experiments at the FLASH free-electron laser,//
152
153 J. Synchrotron Rad. **25**(5), 1529 - 1540 (2018)
154 [[http:~~/~~/dx.doi.org/10.1107/S1600577518008585>>url:http://dx.doi.org/10.1107/S1600577518008585||shape="rect"]]
155 )))
156 1. (((
157 {{expand title="LCLS CAMP reference"}}
158 Lothar Strüder, Sascha Epp, DanielRolles, Robert Hartmann, Peter Holl, Gerhard Lutz, Heike Soltau, Rouven Eckart, Christian Reich, Klaus Heinzinger, Christian Thamm, Artem Rudenko, Faton Krasniqi, Kai-Uwe Kühnel, Christian Bauer, Claus-Dieter Schröter, Robert Moshammer, Simone Techert, Danilo Miessner, Matteo Porro, Olaf Hälker, Norbert Meidinger, Nils Kimmel, Robert Andritschke, Florian Schopper, Georg Weidenspointner, Alexander Ziegler, Daniel Pietschner, Sven Herrmann, Ullrich Pietsch, Albert Walenta, Wolfram Leitenberger, Christoph Bostedt, Thomas Möller, Daniela Rupp, Marcus Adolph, Heinz Graafsma, Helmut Hirsemann, Klaus Gärtner, Rainer Richter, Lutz Foucar, Robert L. Shoeman, Ilme Schlichting, Joachim Ullrich,
159 //Large-format, high-speed, X-ray pnCCDs combined with electron and ion imaging spectrometers in a multipurpose chamber for experiments at 4th generation light sources//,
160 Nucl. Instrum. Methods A **614**, 483–496 (2010);
161 [[http:~~/~~/dx.doi.org/10.1016/j.nima.2009.12.053>>url:http://dx.doi.org/10.1016/j.nima.2009.12.053||shape="rect"]]
162 {{/expand}}
163 )))
164
165 == Reaction Microscope (ReMi) at FL26 ==
166
167 1. Georg Schmid, Kirsten Schnorr, Sven Augustin, Severin Meister, Hannes Lindenblatt, Florian Trost, Yifan Liu, Markus Braune, Rolf Treusch, Claus Dieter Schröter, Thomas Pfeifer and Robert Moshammer,
168 //Reaction Microscope Endstation at FLASH2//,
169 J. Synchrotron Rad. **26** (2019);
170 [[https:~~/~~/doi.org/10.1107/S1600577519002236>>url:https://doi.org/10.1107/S1600577519002236||shape="rect"]]
171 1. Severin Meister, Hannes Lindenblatt, Florian Trost, Kirsten Schnorr, Sven Augustin, Markus Braune, Rolf Treusch, Thomas Pfeifer, Robert Moshammer,
172 Atomic, Molecular and Cluster Science with the Reaction Microscope Endstation at FLASH2,
173 Appl. Sci. **10**, 2953 (2020);
174 [[https:~~/~~/doi.org/10.3390/app10082>>url:https://doi.org/10.3390/app10082||shape="rect"]]
175
176 == HEXTOF momentum microscope (mostly) at PG2 ==
177
178 1. D. Kutnyakhov, R.P. Xian, M. Dendzik, M. Heber, F. Pressacco, S.Y.  Agustsson, L. Wenthaus, H. Meyer, S. Gieschen, G. Mercurio, A. Benz, K. Bühlman, S. Däster, R. Gort, D. Curcio, K. Volckaert, M. Bianchi, Ch. Sanders, J A. Miwa, S. Ulstrup, A. Oelsner, C. Tusche, Y.-J. Chen, D. Vasilyev, K. Medjanik, G. Brenner, S. Dziarzhytski, H. Redlin, B. Manschwetus, S. Dong, J. Hauer, L. Rettig, F. Diekmann, K. Rossnagel, J. Demsar, H.-J. Elmers, Ph. Hofmann, R. Ernstorfer, G. Schönhense, Y. Acremann, and W. Wurth,
179 //Time- and momentum-resolved photoemission studies using time-of-flight momentum microscopy at a free-electron laser//,
180 Rev. Sci. Instrum. **91**, 013109 (2020);
181 [[https:~~/~~/doi.org/10.1063/1.5118777>>url:https://doi.org/10.1063/1.5118777||shape="rect"]]
182
183 == MULTIP chamber ==
184
185 (% style="margin-left: 30.0px;" %)
186 Example experiments (on molecules, clusters and liquid jets) carried in the MULTIP chamber:
187
188 1. J.D. Koralek, J.B. Kim, P. Brůža, C.B. Curry, Z. Chen, H.A. Bechtel, A.A. Cordones, P. Sperling, S. Toleikis, J.F. Kern, S.P. Moeller, S.H. Glenzer, and D.P. DePonte,
189 //Generation and characterization of ultrathin free-flowing liquid sheets//,
190 Nature Comm. **9**, 1353 (2018);
191 [[http:~~/~~/dx.doi.org/10.1038/s41467-018-03696-w>>url:http://dx.doi.org/10.1038/s41467-018-03696-w||shape="rect"]]
192 1. (((
193 U. Zastrau, C. Rödel, M. Nakatsutsumi, T. Feigl, K. Appel, B. Chen, T. Döppner, T. Fennel, T. Fiedler, L.B. Fletcher, E. Förster, E. Gamboa, D.O. Gericke, S. Göde, C. Grote-Fortmann, V. Hilbert, L. Kazak, T. Laarmann, H.J. Lee, P. Mabey, F. Martinez, K.-H. Meiwes-Broer, H. Pauer, M. Perske, A. Przystawik, S. Roling, S. Skruszewicz, M. Shihab, J. Tiggesbäumker, S. Toleikis, M. Wünsche, H. Zacharias, S.H. Glenzer, and G. Gregori,
194 //A sensitive EUV Schwarzschild microscope for plasma studies with sub-micrometer resolution//,
195 Rev. Sci. Instr. **89**, 023703 (2018);
196 [[http:~~/~~/dx.doi.org/10.1063/1.5007950>>url:http://dx.doi.org/10.1063/1.5007950||shape="rect"]]
197 )))
198 1. (((
199 U. Zastrau, P. Sperling, M. Harmand, A. Becker, T. Bornath, R. Bredow, S. Dziarzhytski, T. Fennel, L.B. Fletcher, E. Förster, S. Göde, G. Gregori, V. Hilbert, D. Hochhaus, B. Holst, T. Laarmann, H.J. Lee, T. Ma, J.P. Mithen, R. Mitzner, C.D. Murphy, M. Nakatsutsumi, P. Neumayer, A. Przystawik, S. Roling, M. Schulz, B. Siemer, S. Skruszewicz, J. Tiggesbäumker, S. Toleikis, T. Tschentscher, T. White, M. Wöstmann, H. Zacharias, T. Döppner, S.H. Glenzer, and R. Redmer,
200 //Resolving Ultrafast Heating of Dense Cryogenic Hydrogen//,
201 Phys. Rev. Lett. **112**, 105002 (2014);
202 [[http:~~/~~/dx.doi.org/10.1103/PhysRevLett.112.105002>>url:http://dx.doi.org/10.1103/PhysRevLett.112.105002||shape="rect"]]
203 )))
204 1. (((
205 A. Przystawik, A. Kickermann, A. Al-Shemmary, S. Düsterer, A.M. Ellis, K. von Haeften, M. Harmand, S. Ramakrishna, H. Redlin, L. Schroedter, M. Schulz, T. Seideman, N. Stojanovic, J. Szekely, F. Tavella, S. Toleikis, and T. Laarmann,
206 //Generation of the simplest rotational wave packet in a diatomic molecule: Tracing a two-level superposition in the time domain//,
207 Phys. Rev. A **85**, 052503 (2012);
208 [[http:~~/~~/dx.doi.org/10.1103/PhysRevA.85.052503>>url:http://dx.doi.org/10.1103/PhysRevA.85.052503||shape="rect"]]
209 )))
210
211 (% style="margin-left: 30.0px;" %)
212 Additional XUV spectrometers: Knick-Spec (1.), HiTraX (2.)
213
214 1. (((
215 L. Schroedter, M. Müller, A. Kickermann, A. Przystawik, S. Toleikis, M. Adolph, L. Flückiger, T. Gorkhover, L. Nösel, M. Krikunova, T. Oelze, Y. Ovcharenko, D. Rupp, M. Sauppe, D. Wolter, S. Schorb, C. Bostedt, T. Möller, and T. Laarmann,
216 //Hidden Charge States in Soft-X-Ray Laser-Produced Nanoplasmas Revealed by Fluorescence Spectroscopy//,
217 Phys. Rev. Lett. **112**, 183401 (2014);
218 [[http:~~/~~/dx.doi.org/10.1103/PhysRevLett.112.183401>>url:http://dx.doi.org/10.1103/PhysRevLett.112.183401||shape="rect"]]
219 )))
220 1. R.R. Fäustlin, U. Zastrau, S. Toleikis, I. Uschmann, E. Förster and Th. Tschentscher,
221 //A compact soft X-ray spectrograph combining high efficiency and resolution//,
222 JINST **5**, P02004 (2010);
223 [[http:~~/~~/dx.doi.org/10.1088/1748-0221/5/02/P02004>>url:http://dx.doi.org/10.1088/1748-0221/5/02/P02004||shape="rect"]]
224
225 == MUSIX chamber ==
226
227 1. M. Beye, R.Y. Engel, J.O. Schunck, S. Dziarzhytski, G. Brenner, P.S. Miedema,
228 //Non-Linear Soft X-Ray Methods on Solids with MUSIX - the Multi-Dimensional Spectroscopy and Inelastic X-Ray Scattering Endstation//,
229 J. Phys.: Condens. Matter **31**, 014003 (2019)**,**
230 [[https:~~/~~/doi.org/10.1088/1361-648X/aaedf3>>url:https://doi.org/10.1088/1361-648X/aaedf3||shape="rect"]]
231
232 == Split and Delay Units: ==
233
234 === At beamline BL2 ===
235
236 1. M. Wöstmann, R. Mitzner, T. Noll, S. Roling, B. Siemer, F. Siewert, S. Eppenhoff, F. Wahlert and H. Zacharias,
237 //The XUV split-and-delay unit at beamline BL2 at FLASH//,
238 J. Phys. B: At. Mol. Opt. Phys. **46**, Special Issue: Frontiers of FEL Science, 164005 (2013);
239 [[http:~~/~~/dx.doi.org/10.1088/0953-4075/46/16/164005>>url:http://dx.doi.org/10.1088/0953-4075/46/16/164005||shape="rect"]]
240 1. R. Mitzner, B. Siemer, S. Roling, M. Wöstmann, T. Noll, F. Siewert, A.A. Sorokin, M. Richter, K. Tiedtke, H. Zacharias,
241 //A new soft x-ray autocorrelator – direct evaluation of the temporal properties of FEL pulses at 24 nm//,
242 Proceedings SRI 2009, AIP Conference Proceedings **1234**, pp. 19-22 (2010);
243 [[http:~~/~~/dx.doi.org/10.1063/1.3463172>>url:http://dx.doi.org/10.1063/1.3463172||shape="rect"]]
244
245 === At beamline PG2 ===
246
247 1. F. Sorgenfrei, W.F. Schlotter, T. Beeck, M. Nagasono, S. Gieschen, H. Meyer, A. Föhlisch, M. Beye, and W. Wurth,
248 //The extreme ultraviolet split and femtosecond delay unit at the plane grating monochromator beamline PG2 at FLASH//,
249 Rev. of Sci. Instr. **81**, 043107 (2010);
250 [[http:~~/~~/dx.doi.org/10.1063/1.3374166>>url:http://dx.doi.org/10.1063/1.3374166||shape="rect"]]**
251 **
252
253 === At beamline BL1 /CAMP ===
254
255 1. Mario Sauppe, Dimitrios Rompotis, Benjamin Erk, Sadia Bari, Tobias Bischoff, Rebecca Boll, Cédric Bomme, Christoph Bostedt, Simon Dörner, Stefan Düsterer, Torsten Feigl, Leonie Flückiger, Tais Gorkhover, Katharina Kolatzki, Marion Kuhlmann, Bruno Langbehn, Nils Monserud, Erland Müller, Jan P. Müller, Christopher Passow, Daniel Ramm, Daniel Rolles, Kaja Schubert, Lucas Schwob, Björn Senfftleben, Rolf Treusch, Anatoli Ulmer, Holger Weigelt, Jannis Zimbalski, Julian Zimmermann, Thomas Möller and Daniela Rupp,
256 //XUV double-pulses with femtosecond to 650 picoseconds separation from a multilayer mirror based split-and-delay unit at FLASH//,
257 J. Synchr. Rad. **25**, (% class="ica_pages" %)1517-1528(%%) (2018);
258 [[https:~~/~~/doi.org/10.1107/S1600577518006094>>url:https://doi.org/10.1107/S1600577518006094||shape="rect"]]
259
260 === At beamlines FL24/FL23 ===
261
262 1. (((
263 Sebastian Roling, Matthias Rollnik, Marion Kuhlmann, Elke Plönjes, Frank Wahlert, Helmut Zacharias,
264 //A soft x-ray split-and-delay unit for FLASH II//,
265 Proc. SPIE 10237, Advances in X-ray Free-Electron Lasers Instrumentation IV, 1023712 (14 June 2017);
266 [[https:~~/~~/doi.org/10.1117/12.2265708>>url:https://doi.org/10.1117/12.2265708||shape="rect"]]
267 )))
268
269 == Fast Switching Mirror (BL beamlines) ==
270
271 1. R. Sternberger, M. Sachwitz, A. Donat, U. Gensch, R. Heller, LV. Vu, U. Hahn, H. Schulte-Schrepping, K. Tiedtke,
272 //A fast switching mirror unit at FLASH//,
273 Nucl. Instrum. Methods A **635**, S47-S51 (2011);
274 [[http:~~/~~/dx.doi.org/10.1016/j.nima.2010.11.002>>url:http://dx.doi.org/10.1016/j.nima.2010.11.002||shape="rect"]]
275 1. J. Good, N. Leuschner, J. Nagler, F. Perlick, M. Sachwitz  and L.V. Vu,
276 //A Fast Switching Mirror Unit at FLASH//,
277 J. Phys.: Conf. Series **425**, 122008 (2013);
278 [[http:~~/~~/dx.doi.org/10.1088/1742-6596/425/12/122008>>url:http://dx.doi.org/10.1088/1742-6596/425/12/122008||shape="rect"]]**
279 **
280
281 == 4-mirror polarizer for circular polarization (BL beamlines) ==
282
283 1. C. von Korff Schmising et al.,
284 //Generating circularly polarized radiation in the extreme ultraviolet spectral range at the free-electron laser FLASH//,
285 Review of Scientic Instruments 88 053903 (2017);
286 [[https:~~/~~/doi.org/10.1063/1.4983056>>url:https://doi.org/10.1063/1.4983056||shape="rect"]]
287
288 == Fast shutter (BL, PG, and FLASH2 beamlines) ==
289
290 1. (((
291 E. Plönjes and K. Tiedtke,
292 //The Soft X-ray Free-Electron Laser FLASH at DESY//
293 in Optical Technologies for Extreme-Ultraviolet and Soft X-ray Coherent Sources,
294 edited by F. Canova and L. Poletto (Springer Series in Optical Sciences, Vol. 197, Springer, Heidelberg, 2015);
295 )))
296
297 == Photon diagnostics papers ==
298
299 === **a) Gas Monitor Detector (GMD)** ===
300
301 1. Andrey A. Sorokin, Yilmaz Bican, Susanne Bonfigt, Maciej Brachmanski, Markus Braune, Ulf Fini Jastrow, Alexander Gottwald, Hendrik Kaser, Mathias Richter and Kai Tiedtke,
302 //An X-ray gas monitor for free-electron lasers//,
303 J. Synchrotron Rad. **26**, 1092-1100 (2019);
304 [[https:~~/~~/doi.org/10.1107/S1600577519005174>>url:https://doi.org/10.1107/S1600577519005174||shape="rect"]]
305 1. K. Tiedtke, J. Feldhaus, U. Hahn, U. Jastrow, T. Nunez, T. Tschentscher, S.V. Bobashev, A.A. Sorokin,  J.B. Hastings, S. Möller, L. Cibic, A. Gottwald, A. Hoehl, U. Kroth, M. Krumrey, H. Schöppe, G. Ulm, M. Richter,
306 //Gas-detector for X-ray lasers//,
307 J. Appl. Phys. **103**, 094511 (2008);
308 [[http:~~/~~/dx.doi.org/10.1063/1.2913328>>url:http://dx.doi.org/10.1063/1.2913328||shape="rect"]]
309
310 === **b) VLS Online Spectrometer** ===
311
312 1. G. Brenner, S. Kapitzki, M. Kuhlmann, E. Ploenjes, T. Noll, F. Siewert,  R. Treusch, K. Tiedtke, R. Reininger, M.D. Roper, M.A. Bowler, F.M. Quinn, J. Feldhaus,
313 //First results from the online variable line spacing grating spectrometer at FLASH//,
314 Nucl. Instr. and Meth A **635**, S99–S103 (2011);
315 [[http:~~/~~/dx.doi.org/10.1016/j.nima.2010.09.134>>url:http://dx.doi.org/10.1016/j.nima.2010.09.134||shape="rect"]]
316
317 **see also "Kalypso detector"**
318
319 1. Rota L et al.,
320 (% class="title-text" %)//KALYPSO: Linear array detector for high-repetition rate and real-time beam diagnostics//,
321 (%%)Nucl. Instr. and Meth. A 936 10-13 (2018)
322 [[https:~~/~~/doi.org/10.1016/j.nima.2018.10.093>>url:https://doi.org/10.1016/j.nima.2018.10.093||shape="rect"]]
323
324 === **c) Compact Spectrometer
325 ** ===
326
327 1. F. Frassetto, S. Coraggia, S. Dziarzhytski, N. Gerasimova, L. Poletto,
328 //Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH//,
329 J. Synchrotron Rad. **19**, 596-601 (2012);
330 [[http:~~/~~/dx.doi.org/10.1107/S0909049512022224>>url:http://dx.doi.org/10.1107/S0909049512022224||shape="rect"]]
331 1. Fabio Frassetto, Siarhei Dziarzhytski, Natalia Guerassimova and Luca Poletto,
332 //Compact spectrometer for on-line photon diagnostics at FLASH//,
333 J. Phys.: Conf. Ser. **425**,122010 (2013);
334 [[http:~~/~~/dx.doi.org/10.1088/1742-6596/425/12/122010>>url:http://dx.doi.org/10.1088/1742-6596/425/12/122010||shape="rect"]]
335 1. F. Frassetto et al.,
336 (% class="title-text" %)//Compact spectrometer for photon diagnostics of the extreme-ultraviolet free-electron-laser radiation//,
337 (%%)Nucl. Instrum. Meth. A 635 S94-98 (2011)
338 [[https:~~/~~/doi.org/10.1016/j.nima.2010.11.004>>url:https://doi.org/10.1016/j.nima.2010.11.004||shape="rect"]]
339
340 === **d) Online photoionization spectrometer (OPIS)** ===
341
342 1. (((
343 Markus Braune, Jens Buck, Marion Kuhlmann, Sören Grunewald, Stefan Düsterer, Jens Viefhaus, Kai Tiedtke
344 //Non-invasive online wavelength measurements at FLASH2 and present benchmark.//
345 Proc. PhotonDiag2017,
346 J. Synchrotron Rad. **25**, 3–15 (2018)
347 (% style="color: rgb(51,102,255);" %)__[[https:~~/~~/doi.org/10.1107/S1600577517013893>>url:https://doi.org/10.1107/S1600577517013893||style="color: rgb(51,102,255);" shape="rect"]]__
348 )))
349 1. Markus Braune, Günter Brenner, Siarhei Dziarzhytski, Pavle Juranić, Andrey Sorokin, Kai Tiedtke,
350 //A non-invasive online photoionization spectrometer for FLASH2//,
351 Proc. PhotonDiag2015,
352 J. Synchrotron Rad. **23**, 10-20 (2016);
353 [[__http:~~/~~/dx.doi.org/10.1107/S1600577515022675__>>url:http://dx.doi.org/10.1107/S1600577515022675||shape="rect"]]
354 1. Wellhöfer, J.T. Hoeft, M. Martins, W. Wurth, M. Braune, J. Viefhaus, M. Richter, K. Tiedtke,
355 //Photoelectron spectroscopy as non-invasive method to monitor SASE-FEL radiation//,
356 JINST **3**, P02003 (2008);
357 [[__http:~~/~~/dx.doi.org/10.1088/1748-0221/3/02/P02003__>>url:http://dx.doi.org/10.1088/1748-0221/3/02/P02003||shape="rect"]]
358
359 === **e) Gotthard detector** ===
360
361 1. Palutke, N.C. Gerken, K. Mertens, S. Klumpp, A. Mozzanica, B. Schmitt, C. Wunderer, H. Graafsma, K.-H. Meiwes-Broer, W. Wurth, M. Martins,
362 //Spectrometer for shot-to-shot photon energy characterization in the multi-bunch mode of the free electron laser at Hamburg//,
363 Rev. Sci. Instrum. **86**, 113107(2015);[[__ http:~~/~~/scitation.aip.org/content/aip/journal/rsi/86/11/10.1063/1.4936293__>>url:http://scitation.aip.org/content/aip/journal/rsi/86/11/10.1063/1.4936293||shape="rect"]]
364
365 === **f) KALYPSO detector** ===
366
367 1. C. Gerth, G. Brenner, M. Caselle, S. Düsterer, D. Haack, D. Makowski, A. Mielczarek, S. Palutke, L. Rota, V. Rybnikov, C. Schmidt, B. Steffen, K. Tiedtke,
368 //Linear array detector for online diagnostics of spectral distributions at MHz repetition rates//,
369 J. Synchrotron Rad. **26**, 1514-1522 (2019);
370 [[https:~~/~~/doi.org/10.1107/S1600577519007835>>url:https://doi.org/10.1107/S1600577519007835||shape="rect"]]
371
372 === **g) Timing tools (photon arrival time monitors)
373 ** ===
374
375 1. E. Zapolnova, R. Pan, T. Golz, M. Sindik, M. Nikolic, M. Temme, M. Rabasovic, D. Grujic, Z. Chen, S. Toleikis, N. Stojanovic,
376 //XUV-driven plasma switch for THz: new spatio-temporal overlap tool for XUV−THz pump−probe experiments at FELs//,
377 J. Synchrotron Rad. **27**, 11-16 (2020);
378 [[https:~~/~~/doi.org/10.1107/S1600577519014164>>url:https://doi.org/10.1107/S1600577519014164||shape="rect"]]
379 1. M. Harmand, C.D. Murphy, C.R.D. Brown, M. Cammarata, T. Döppner, S. Düsterer, D. Fritz, E. Förster, E. Galtier, J. Gaudin, S.H. Glenzer, S. Göde, G. Gregori, V. Hilbert, D. Hochhaus, T. Laarmann, H.J. Lee, H. Lemke, K.-H. Meiwes-Broer, A. Moinard, P. Neumayer, A. Przystawik, H. Redlin, M. Schulz, S. Skruszewicz, F. Tavella, T. Tschentscher, T. White, U. Zastrau, S.Toleikis,
380 //Plasma switch as a temporal overlap tool for pump-probe experiments at FEL facilities//,
381 JINST **7**, P08007 (2012);
382 [[http:~~/~~/dx.doi.org/10.1088/1748-0221/7/08/P08007>>url:http://dx.doi.org/10.1088/1748-0221/7/08/P08007||shape="rect"]]
383 1. M. Drescher, U. Frühling, M. Krikunova, Th. Maltezopoulos, M. Wieland,
384 //Time-diagnostics for improved dynamics experiments at XUV FELs//,
385 J. Phys. B, **43**, 194010 (2010);
386 [[http:~~/~~/dx.doi.org/10.1088/0953-4075/43/19/194010>>url:http://dx.doi.org/10.1088/0953-4075/43/19/194010||shape="rect"]]
387 1. C. Gahl, A. Azima, M. Beye, M. Deppe, K. Döbrich, U. Hasslinger, F. Hennies, A. Melnikov, M. Nagasono, A. Pietzsch, M. Wolf, W. Wurth, A. Föhlisch,
388 //A femtosecond X-ray/optical cross-correlator//,
389 Nature Photonics **2**, 165-169 (2008);
390 [[__http:~~/~~/dx.doi.org/10.1038/nphoton.2007.298__>>url:http://dx.doi.org/10.1038/nphoton.2007.298||shape="rect"]]
391
392 === **h) XUV Pulse Length measurements
393 ** ===
394
395 1. **(overview)**
396 S. Düsterer, M. Rehders, A. Al-Shemmary, C. Behrens, G. Brenner, O. Brovko, M. DellAngela, M. Drescher, B. Faatz, J. Feldhaus, U. Frühling, N. Gerasimova, N. Gerken, C. Gerth, T. Golz, A. Grebentsov, E. Hass, K. Honkavaara, V. Kocharian, M. Kurka, Th. Limberg, R. Mitzner, R. Moshammer, E. Plönjes, M. Richter, J. Rönsch-Schulenburg, A. Rudenko, H. Schlarb, B. Schmidt, A. Senftleben, E.A. Schneidmiller, B. Siemer, F. Sorgenfrei, A.A. Sorokin, N. Stojanovic, K. Tiedtke, R. Treusch, M. Vogt, M. Wieland, W. Wurth, S. Wesch, M. Yan, M.V. Yurkov, H. Zacharias, S. Schreiber,
397 //Development of experimental techniques for the characterization of ultrashort photon pulses of extreme ultraviolet free-electron lasers//,
398 Phys. Rev. STAB **17**, 120702 (2014);
399 [[__http:~~/~~/dx.doi.org/10.1103/PhysRevSTAB.17.120702__>>url:http://dx.doi.org/10.1103/PhysRevSTAB.17.120702||shape="rect"]]
400 1. **(general overview - not only FLASH)**
401 W. Helml, I. Grguraš, P. N. Juranić, S. Düsterer, T. Mazza, A. R. Maier, N. Hartmann, M. Ilchen, G. Hartmann, L. Patthey, C. Callegari, J. T. Costello, M. Meyer, R. N. Coffee, A. L. Cavalieri, R. Kienberger,
402 //Ultrashort Free-Electron Laser X-ray Pulses//,__
403 __Appl. Sci. **7**, 915 (2017);__
404 [[http:~~/~~/dx.doi.org/10.3390/app7090915>>url:http://dx.doi.org/10.3390/app7090915||shape="rect"]]__
405 1. **(THz streaking)**
406 R. Ivanov, J. Liu, G. Brenner, M. Brachmanski, S. Düsterer,**
407 **//FLASH free-electron laser single-shot temporal diagnostic: terahertz-field-driven streaking//,
408 Special Issue (PhotonDiag2017),
409 J. Synchrotron Rad**. 25, **26-31 (2018);
410 [[https:~~/~~/doi.org/10.1107/S160057751701253X>>url:https://doi.org/10.1107/S160057751701253X||shape="rect"]]
411 1. **(THz streaking)**
412 I. Grguraš, A.R. Maier, C. Behrens, T. Mazza, T J. Kelly, P. Radcliffe, S. Düsterer, A.K. Kazansky,   N.M. Kabachnik,  Th. Tschentscher,   J.T. Costello,   M. Meyer, M.C. Hoffmann, H. Schlarb, A.L. Cavalieri,
413 //Ultrafast X-ray pulse characterization at free-electron lasers//,
414 Nature Photonics **6**, 852-857 (2012);
415 [[http:~~/~~/dx.doi.org/10.1038/NPHOTON.2012.276>>url:http://dx.doi.org/10.1038/NPHOTON.2012.276||shape="rect"]]
416 1. **(THz streaking)**
417 U. Frühling, M. Wieland, M. Gensch, T. Gebert, B. Schütte, M. Krikunova, R. Kalms^^.^^, F. Budzyn, O. Grimm, J. Rossbach, E. Plönjes, M. Drescher,//
418 Single-shot THz field driven X-ray streak-camera//,
419 Nature Photonics **3**, 523-528 (2009);
420 [[http:~~/~~/dx.doi.org/10.1038/nphoton.2009.160>>url:http://dx.doi.org/10.1038/nphoton.2009.160||shape="rect"]]
421 1. **(spectral measurements)**
422 R. Engel, S. Düsterer, G. Brenner, and U. Teubner,
423 //Quasi-real-time photon pulse duration measurement by analysis of FEL radiation spectra//,
424 Proc. PhotonDiag2015,
425 J. Synchrotron Rad. **23**, 118-122 (2016);
426 [[__http:~~/~~/dx.doi.org/10.1107/S1600577515022997__>>url:http://dx.doi.org/10.1107/S1600577515022997||shape="rect"]]
427 1. (((
428 **(electron measurements, LOLA)**
429 Behrens C. , Gerasimova N., Gerth Ch., Schmidt B., Schneidmiller E. ,Serkez S., Wesch S., Yurkov, M.  
430 //Constraints on photon pulse duration from longitudinal electron beamdiagnostics at a soft X-ray free-electron laser
431 //Phys. Rev. STAB **15**, 030707 (2012);
432 [[http:~~/~~/dx.doi.org/10.1103/PhysRevSTAB.15.030707>>url:http://dx.doi.org/10.1103/PhysRevSTAB.15.030707||shape="rect"]]
433 )))
434 1. (((
435 **(reflectivity change on solids)**
436 R. Riedel, A. Al-Shemmary, M. Gensch, T. Golz, M. Harmand, N. Medvedev, M.J. Prandolini, K. Sokolowski-Tinten, S. Toleikis, U. Wegner, B. Ziaja, N. Stojanovic, F. Tavella,
437 //Single-shot pulse duration monitor for extreme ultraviolet and X-ray free-electron lasers//,
438 Nature Comm. **4**, 1731 (2013);
439 [[http:~~/~~/dx.doi.org/10.1038/ncomms2754>>url:http://dx.doi.org/10.1038/ncomms2754||shape="rect"]]
440 )))
441
442 \\
443
444 **i) Wavefront Sensor and Wigner Distribution measurements
445 **
446
447 1. B. Keitel, E. Plönjes, S. Kreis, M. Kuhlmann, K. Tiedtke, T. Mey, B. Schäfer, K. Mann,
448 //Hartmann wavefront sensors and their application at FLASH//,
449 Proc. PhotonDiag2015,
450 J. Synchrotron Rad. **23**, 43-49 (2016);
451 [[http:~~/~~/dx.doi.org/10.1107/S1600577515020354>>url:http://dx.doi.org/10.1107/S1600577515020354||shape="rect"]]
452 1. K. Mann, B. Flöter, T. Mey, B. Schäfer, B. Keitel, E. Plönjes, K. Tiedtke,
453 //Hartmann wavefront sensor for EUV radiation//,
454 Proc. SPIE **8679**, Extreme Ultraviolet (EUV) Lithography IV, 867922 (April 1, 2013);
455 [[http:~~/~~/dx.doi.org/10.1117/12.2011508>>url:http://dx.doi.org/10.1117/12.2011508||shape="rect"]]
456
457 {{expand title="Further References: click here to expand..."}}
458 1. T. Mey, //Radiation characteristics of extreme UV and soft X-ray sources//
459 PhD Thesis, Georg-August-Universität Göttingen.
460 Göttingen Series in X-ray Physics; 15 (2015), Universitätsverlag Göttingen, Göttingen, ISBN13: 978-3-86395-211-2;
461 [[__http:~~/~~/resolver.sub.uni-goettingen.de/purl?univerlag-isbn-978-3-86395-211-2__>>url:http://resolver.sub.uni-goettingen.de/purl?univerlag-isbn-978-3-86395-211-2||shape="rect"]]   (for Wigner distribution measurements)
462 1. T. Mey, B. Schäfer, K. Mann, B. Keitel, M. Kuhlmann, and E. Plönjes,
463 //Wigner distribution measurements of the spatial coherence properties of the free-electron laser FLASH//
464 Optics Express **22**, 16571 (2014);
465 [[__http:~~/~~/dx.doi.org/10.1364/OE.22.016571__>>url:http://http/dx.doi.org/10.1364/OE.22.016571||shape="rect"]]
466 1. B. Flöter, //Strahlcharakterisierung von Freie-Elektronen-Lasern im weichen Röntgen-Spektralbereich// 
467 PhD Thesis, Georg-August-Universität Göttingen,
468 Göttingen Series in X-ray Physics; 8 (2012), Universitätsverlag Göttingen, Göttingen, ISBN13: 978-3-86395-074-3;
469 [[https:~~/~~/univerlag.uni-goettingen.de/bitstream/handle/3/isbn-978-3-86395-074-3/GSXP8_floeter.pdf?sequence=1&>>url:https://univerlag.uni-goettingen.de/bitstream/handle/3/isbn-978-3-86395-074-3/GSXP8_floeter.pdf?sequence=1&||shape="rect"]]  (for wavefront sensors)
470 {{/expand}}
471
472 \\
473
474 ----
475
476 = Pump-Probe Laser systems =
477
478 **a) FLASH2
479 **
480
481 1. T. Lang, S. Alisauskas, U. Große-Wortmann, T. Hülsenbusch, B. Manschwetus, C. Mohr, J. Müller, F. Peters, N. Schirmel, S. Schulz, A. Swiderski, J. Zheng and I. Hartl,
482 Versatile OPCPA Pump-Probe Laser System for the FLASH2 XUV FEL Beamline at DESY,
483 //2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)//, Munich, Germany, 2019, pp. 1-1;
484 [[http:~~/~~/dx.doi.org/10.1109/CLEOE-EQEC.2019.8871596>>url:http://dx.doi.org/10.1109/CLEOE-EQEC.2019.8871596||shape="rect"]]
485 1. N. Schirmel, S. Alisauskas, T. Hülsenbusch, B. Manschwetus, C. Mohr, L. Winkelmann, U. Große-Wortmann, J. Zheng, T. Lang, and I. Hartl,
486 //Long-Term Stabilization of Temporal and Spectral Drifts of a Burst-Mode OPCPA System//,
487 in //Conference on Lasers and Electro-Optics//, OSA Technical Digest (Optical Society of America, 2019), paper STu4E.4.;
488 [[https:~~/~~/doi.org/10.1364/CLEO_SI.2019.STu4E.4>>url:https://doi.org/10.1364/CLEO_SI.2019.STu4E.4||shape="rect"]]
489
490 **b) FLASH1
491 **
492
493 1. H. Redlin, A. Al-Shemmary, A. Azima, N. Stojanovic, F. Tavella, I. Will, S. Düsterer,
494 //The FLASH pump-probe laser system: Setup, characterization and optical beamlines//.,
495 Nucl. Instrum. Methods A **635**, 88–93 (2011);
496 [[http:~~/~~/dx.doi.org/10.1016/j.nima.2010.09.159>>url:http://dx.doi.org/10.1016/j.nima.2010.09.159||shape="rect"]]
497 1. **(FEL-laser synchronization)**
498 S. Schulz, M. K. Czwalinna, M. Felber, P. Prędki, S. Schefer, H. Schlarb, U. Wegner,
499 //Femtosecond-precision synchronization of the pump-probe optical laser for user experiments at FLASH//,
500 Proc. SPIE **8778**, Advances in X-ray Free-Electron Lasers II: Instrumentation, 87780R (May 3, 2013);
501 [[http:~~/~~/dx.doi.org/10.1117/12.2021572>>url:http://dx.doi.org/10.1117/12.2021572||shape="rect"]]
502 \\
503
504 **c) pump-probe data analysis**
505
506 1. Evgeny Savelyev, Rebecca Boll, Cédric Bomme, Nora Schirmel, Harald Redlin, Benjamin Erk, Stefan Düsterer, Erland Müller, Hauke Höppner, Sven Toleikis, Jost Müller, Marie Kristin Czwalinna, Rolf Treusch, Thomas Kierspel, Terence Mullins, Sebastian Trippel, Joss Wiese, Jochen Küpper, Felix Brauße, Faruk Krecinic, Arnaud Rouzée, Piotr Rudawski, Per Johnsson, Kasra Amini, Alexandra Lauer, Michael Burt, Mark Brouard, Lauge Christensen, Jan Thøgersen, Henrik Stapelfeldt, Nora Berrah, Maria Müller, Anatoli Ulmer, Simone Techert, Artem Rudenko, Daniel Rolles,
507 //Jitter-Correction for IR/UV-XUV Pump-Probe Experiments at the FLASH Free-Electron Laser//,
508 New J. Phys. **19**, 043009 (2017),
509 [[https:~~/~~/doi.org/10.1088/1367-2630/aa652d>>url:https://doi.org/10.1088/1367-2630/aa652d||shape="rect"]]
510
511 **d) HHG laser source at FL26/ReMi**
512
513 1. Elisa Appi, Christina C. Papadopoulou, Jose Louise Mapa, Nishad Wesavkar, Christoph Jusko, Philip Mosel, Skirmantas Ališauskas, Tino Lang, Christoph M. Heyl, Bastian Manschwetus, Maciej Brachmanski, Markus Braune, Hannes Lindenblatt, Florian
514 Trost, Severin Meister, Patrizia Schoch, Rolf Treusch, Robert Moshammer, Ingmar Hartl, Uwe Morgner, and Milutin Kovacev,
515 //A synchronized VUV light source based on high-order harmonic generation at FLASH//,
516 Sci. Rep. **10**, 6867 (2020);
517 (% style="color: rgb(0,51,102);" class="nolink" %)[[https:~~/~~/doi.org/10.1038/s41598-020-63019-2>>url:https://doi.org/10.1038/s41598-020-63019-2||shape="rect"]]
518
519 ----
520
521 = Other references =
522
523 **Damage Tresholds of optical components, start at TTF1**
524
525 1. Krzywinski, R. Sobierajski, M. Jurek, R. Nietubyc, J.B. Pelka, L. Juha, M. Bittner, V. Létal, and V. Vorlíček, A. Andrejczuk, J. Feldhaus, E.L. Saldin, E.A. Schneidmiller, R. Treusch, and M.V. Yurkov,
526 Conductors, semiconductors, and insulators irradiated with shortwavelength free-electron laser,
527 J. Appl. Phys. **101**, 043107 (2007);
528 [[http:~~/~~/dx.doi.org/10.1063/1.2434989>>url:http://dx.doi.org/10.1063/1.2434989||shape="rect"]]
529
530 **Study of fluorescent crystals for beam profile imaging, start at TTF1**
531
532 1. Kirm, A. Andrejczuk, J.Krzywinski, and R. Sobierajski,
533 //Influence of excitation density on luminescence decay in Y,,3,,Al,,5,,O,,12,,:Ce and BaF,,2,, crystals excited by free electron laser radiation in VUV//,
534 phys. stat. sol. (c) **2**, 649-652 (2005);
535 [[__http:~~/~~/dx.doi.org/10.1002/pssc.200460255__>>url:http://dx.doi.org/10.1002/pssc.200460255||shape="rect"]]
536
537 **Study of carbon coatings for FEL mirrors,  start at TTF1__
538 __**
539
540 1. Steeg, L. Juha, J. Feldhaus, S. Jacobi, R. Sobierajski, C.Michaelsen, A. Andrejczuk, and J. Krzywinski,
541 //Total reflection amorphous carbon mirrors for vacuum ultraviolet free electron lasers//,
542 Appl. Phys. Lett. **84**, 657-659 (2004);
543 [[__http:~~/~~/dx.doi.org/10.1063/1.1645320__>>url:http://dx.doi.org/10.1063/1.1645320||shape="rect"]]
544 {{/layout-cell}}
545 {{/layout-section}}
546 {{/layout}}