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5 **Collection of reference papers for FLASH1 and FLASH2 beamlines and instruments.**
6
7 **Last update:** {{date value="2023-04-06" format="yyyy-MM-dd"/}}
8
9 **In case of multiple references, the most complete or up-to-date is 1st.**
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34 = FEL Accelerator Part =
35
36 1. W. Ackermann et al.,
37 //Operation of a Free Electron Laser in the Wavelength Range from the Extreme Ultraviolet to the Water Window//,
38 Nature Photonics **1**, 336-342 (2007);
39 [[http:~~/~~/dx.doi.org/10.1038/nphoton.2007.76>>url:http://dx.doi.org/10.1038/nphoton.2007.76||shape="rect"]]
40
41 **FLASH2 and other recent developments (such as FLASH2020+ upgrade pogram):**
42
43 1. Martin Beye, Markus Gühr, Ingmar Hartl, Elke Plönjes, Lucas Schaper, Siegfried Schreiber, Kai Tiedtke and Rolf Treusch,
44 //FLASH and the FLASH2020+ project - current status and upgrades for the free-electron laser in Hamburg at DESY//,
45 Eur. Phys. J. Plus **138**, 193 (2023);
46 [[https:~~/~~/doi.org/10.1140/epjp/s13360-023-03814-8>>url:https://doi.org/10.1140/epjp/s13360-023-03814-8]]
47 1. B. Faatz et al.,
48 //Simultaneous operation of two soft x-ray free-electron lasers driven by one linear accelerator//,
49 New J. Phys. **18**, 062002 (2016);
50 [[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"]]
51 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,
52 //The FLASH Facility: Advanced Options for FLASH2 and Future Perspectives//,
53 Appl. Sci. **7**, 1114 (2017);
54 [[http:~~/~~/dx.doi.org/10.3390/app7111114>>url:http://dx.doi.org/10.3390/app7111114||shape="rect"]]
55 1. J. Rönsch-Schulenburg, B. Faatz, K. Honkavaara, M. Kuhlmann, S. Schreiber, R. Treusch,
56 //Experience with Multi-Beam and Multi-Beamline FEL-Operation//,
57 Proc. IPAC17, Copenhagen, Denmark (2017),
58 J.Phys.: Conf. Ser. **874**, 012023 (2017);
59 [[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"]]
60 1. S. Toleikis for the whole FLASH team,
61 //The FLASH facility - current status in 2018 and future upgrade plans//,
62 AIP Conf. Proc. **2054**, 030015 (2019);
63 [[http:~~/~~/dx.doi.org/10.1063/1.5084578>>url:http://dx.doi.org/10.1063/1.5084578||shape="rect"]]
64
65 **Afterburner Undulator at FLASH2:**
66
67 1. M. Tischer, H. Bienert, K. Götze, D. Meissner, P. Neumann, P. N'Gotta, T. Ramm, A. Schöps, P. Talkovski, S. Telawane,
68 //Development of an APPLE-III undulator for FLASH-2//,
69 Proc. SRI 2021, Online (2021), J. Phys.: Conf. Ser. **2380,** 012017 (2022);
70 [[https:~~/~~/dx.doi.org/10.1088/1742-6596/2380/1/012017>>url:https://dx.doi.org/10.1088/1742-6596/2380/1/012017]]
71 1. M. Mehrjoo, B. Faatz, G. Paraskaki, M. Tischer, P. Vagin,
72 //Expected Radiation Properties of the Harmonic Afterburner at FLASH2//,
73 Proc. FEL 2019, Hamburg, germany (2019), Paper WEP072 via JACoW;
74 [[https:~~/~~/dx.doi.org/10.18429/JACoW-FEL2019-WEP072>>url:https://dx.doi.org/10.18429/JACoW-FEL2019-WEP072]]
75 1. (((
76 M. Tischer, H. Bienert, K. Götze, P. Neumann, T. Ramm, A. Schöps, P. Talkovski, S. Telawane and P. Vagin,
77 //Construction and commissioning of an APPLE-III afterburner undulator as a prototype for radiators in the new seeding line of FLASH2020+,//
78 **in preparation for SRI2024**
79
80 )))
81
82 == FEL machine diagnostics ==
83
84 **a) Longitudinal FEL beam diagnostics (PolariX (1.) and LOLA (2.))**
85
86 1. B. Marchetti, A. Grudiev, P. Craievich, R. Assmann, H.‑H. Braun, N. Catalan Lasheras, F. Christie, R. D’Arcy, R. Fortunati, R. Ganter, P. González Caminal, M. Hoffmann, M. Huening, S. M. Jaster‑Merz, R. Jonas, F. Marcellini, D. Marx, G. McMonagle, J. Osterhoff, M. Pedrozzi, E. Prat Costa, S. Reiche, M. Reukauff, S. Schreiber, G. Tews, M. Vogt, S. Wesch & W. Wuensch,
87 //Experimental demonstration of novel beam characterization// //using a polarizable X‑band// //transverse deflection structure//,
88 Scientific Reports **11**,3560 (2021);
89 [[https:~~/~~/doi.org/10.1038/s41598-021-82687-2>>url:https://doi.org/10.1038/s41598-021-82687-2||shape="rect"]]
90 1.
91 1. C. Behrens, N. Gerasimova, Ch. Gerth, B. Schmidt, E. A. Schneidmiller, S. Serkez, S. Wesch, and M. V. Yurkov,
92 Constraints on photon pulse duration from longitudinal electron beam diagnostics at a soft x-ray free-electron laser,
93 Phys. Rev. ST Accel. Beams **15**, 030707 (2012)
94 [[https:~~/~~/doi.org/10.1103/PhysRevSTAB.15.030707>>url:https://doi.org/10.1103/PhysRevSTAB.15.030707||shape="rect"]]
95
96 **b) Synchronization and Electron Bunch Arrvial time Monitor (BAM)**
97
98 1. S. 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,
99 //Femtosecond all-optical synchronization of an X-ray free-electron laser//,
100 Nature Communications **6**, 5938 (2015);
101 [[__http:~~/~~/dx.doi.org/10.1038/ncomms6938__>>url:http://dx.doi.org/10.1038/ncomms6938||shape="rect"]]
102 1. (((
103 (% class="pub-info" %)
104 A. Angelovski, et al.
105 //Evaluation of the cone-shaped pickup performance for low charge sub-10 fs arrival-time measurements at free electron laser facilities//
106 Phys. Rev. ST Accel. Beams **18**, 012801 (2015)
107 [[https:~~/~~/doi.org/10.1103/PhysRevSTAB.18.012801>>url:https://doi.org/10.1103/PhysRevSTAB.18.012801||shape="rect"]]
108 )))
109
110 ----
111
112 = User Facility/Beamline descriptions and Reviews =
113
114 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,
115 //The soft X-ray free-electron laser FLASH at DESY: beamlines, diagnostics, and end stations//,
116 New J. Phys. **11**, 023029 (2009);
117 [[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"]]
118
119 **Reviews**
120
121 1. Jörg Rossbach, Jochen R. Schneider, Wilfried Wurth,
122 //10 years of pioneering X-ray science at the Free-Electron Laser FLASH at DESY//,
123 Physics Reports **808**, 1-74 (2019);
124 [[https:~~/~~/doi.org/10.1016/j.physrep.2019.02.002>>url:https://doi.org/10.1016/j.physrep.2019.02.002||shape="rect"]]
125 1. Jochen R. Schneider,
126 //FLASH - from accelerator test facility to the first single-pass soft x-ray free-electron laser//,
127 J. Phys. B: At. Mol. Opt. Phys. **43**, 194001 (2010);
128 [[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"]]
129 1. J. Feldhaus,
130 //FLASH - the first soft x-ray free electron laser (FEL) user facility//,
131 J. Phys. B: At. Mol. Opt. Phys. **43**, 194002 (2010);
132 [[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"]]
133
134 == PG monochromator beamline ==
135
136 1. M. Martins, M. Wellhöfer, J.T. Hoeft, W. Wurth, J. Feldhaus, and R. Follath,
137 //Monochromator beamline for FLASH//,
138 Rev. Sci. Instrum. **77**, 115108 (2006);
139 [[http:~~/~~/dx.doi.org/10.1063/1.2364148>>url:http://dx.doi.org/10.1063/1.2364148||shape="rect"]]
140 1. N. Gerasimova, S. Dziarzhytski, J. Feldhaus,
141 //The monochromator beamline at FLASH: performance, capabilities and upgrade plans//,
142 Journal of Modern Optics **58**, 1480-1485 (2011); 
143 [[http:~~/~~/dx.doi.org/10.1080/09500340.2011.588344>>url:http://dx.doi.org/10.1080/09500340.2011.588344||shape="rect"]]
144
145 == THz Beamline ==
146
147 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,
148 //New infrared undulator beamline at FLASH//,
149 Infrared Phys. Technol. **51**, 423-425 (2008);
150 [[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"]]
151 1. E. Zapolnova, , T. Golz, R. Pan, K. Klose, S. Schreiber and N. Stojanovic.
152 //THz pulse doubler at FLASH: double pulses for pump–probe experiments at X-ray FELs//,
153 J. Synchrotron Rad. **25**, 39-43 (2018);
154 [[https:~~/~~/doi.org/10.1107/S1600577517015442>>url:https://doi.org/10.1107/S1600577517015442||shape="rect"]]
155 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,
156 //Photon diagnostics at the FLASH THz beamline//,
157 J. Synchrotron Rad. **26**, 700-707 (2019);
158 [[https:~~/~~/doi.org/10.1107/S1600577519003412>>url:https://doi.org/10.1107/S1600577519003412||shape="rect"]]
159
160 == CAMP chamber and BL1 (after 2014) ==
161
162 1. (((
163 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,
164 //CAMP@FLASH: an end-station for imaging, electron- and ion-spectroscopy, and pump–probe experiments at the FLASH free-electron laser,//
165
166 J. Synchrotron Rad. **25**(5), 1529 - 1540 (2018)
167 [[http:~~/~~/dx.doi.org/10.1107/S1600577518008585>>url:http://dx.doi.org/10.1107/S1600577518008585||shape="rect"]]
168 )))
169 1. (((
170 {{expand title="LCLS CAMP and pnCCD reference"}}
171 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,
172 //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//,
173 Nucl. Instrum. Methods A **614**, 483–496 (2010);
174 [[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"]]
175 {{/expand}}
176 )))
177
178 == Reaction Microscope (ReMi) at FL26 ==
179
180 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,
181 //Reaction Microscope Endstation at FLASH2//,
182 J. Synchrotron Rad. **26** (2019);
183 [[https:~~/~~/doi.org/10.1107/S1600577519002236>>url:https://doi.org/10.1107/S1600577519002236||shape="rect"]]
184 1. Severin Meister, Hannes Lindenblatt, Florian Trost, Kirsten Schnorr, Sven Augustin, Markus Braune, Rolf Treusch, Thomas Pfeifer, Robert Moshammer,
185 Atomic, Molecular and Cluster Science with the Reaction Microscope Endstation at FLASH2,
186 Appl. Sci. **10**, 2953 (2020);
187 [[https:~~/~~/doi.org/10.3390/app10082>>url:https://doi.org/10.3390/app10082||shape="rect"]]
188
189 == HEXTOF momentum microscope (mostly) at PG2 ==
190
191 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,
192 //Time- and momentum-resolved photoemission studies using time-of-flight momentum microscopy at a free-electron laser//,
193 Rev. Sci. Instrum. **91**, 013109 (2020);
194 [[https:~~/~~/doi.org/10.1063/1.5118777>>url:https://doi.org/10.1063/1.5118777||shape="rect"]]
195 1. (% style="color:#222222" %)Xian, R.P., Acremann, Y., Agustsson, S.Y., , M. Dendzik, K. Bühlmann, D. Curcio, D. Kutnyakhov, F. Pressacco, M. Heber, S. Dong, T. Pincelli, J. Demsar, W. Wurth, Ph. Hofmann, M. Wolf, M. Scheidgen, L. Rettig and R. Ernstorfer, (% style="letter-spacing:0.0px" %)//An open-source, end-to-end workflow for multidimensional photoemission spectroscopy//. (%%)//Sci Data//(% style="color:#222222" %) (%%)**7, **(% style="color:#222222" %)442 (2020). [[https:~~/~~/doi.org/10.1038/s41597-020-00769-8>>url:https://doi.org/10.1038/s41597-020-00769-8||shape="rect"]]
196
197 == MULTIP chamber ==
198
199 (% style="margin-left: 30.0px;" %)
200 Example experiments (on molecules, clusters and liquid jets) carried in the MULTIP chamber:
201
202 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,
203 //Generation and characterization of ultrathin free-flowing liquid sheets//,
204 Nature Comm. **9**, 1353 (2018);
205 [[http:~~/~~/dx.doi.org/10.1038/s41467-018-03696-w>>url:http://dx.doi.org/10.1038/s41467-018-03696-w||shape="rect"]]
206 1. (((
207 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,
208 //A sensitive EUV Schwarzschild microscope for plasma studies with sub-micrometer resolution//,
209 Rev. Sci. Instr. **89**, 023703 (2018);
210 [[http:~~/~~/dx.doi.org/10.1063/1.5007950>>url:http://dx.doi.org/10.1063/1.5007950||shape="rect"]]
211 )))
212 1. (((
213 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,
214 //Resolving Ultrafast Heating of Dense Cryogenic Hydrogen//,
215 Phys. Rev. Lett. **112**, 105002 (2014);
216 [[http:~~/~~/dx.doi.org/10.1103/PhysRevLett.112.105002>>url:http://dx.doi.org/10.1103/PhysRevLett.112.105002||shape="rect"]]
217 )))
218 1. (((
219 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,
220 //Generation of the simplest rotational wave packet in a diatomic molecule: Tracing a two-level superposition in the time domain//,
221 Phys. Rev. A **85**, 052503 (2012);
222 [[http:~~/~~/dx.doi.org/10.1103/PhysRevA.85.052503>>url:http://dx.doi.org/10.1103/PhysRevA.85.052503||shape="rect"]]
223 )))
224
225 (% style="margin-left: 30.0px;" %)
226 Additional XUV spectrometers: Knick-Spec (1.), HiTraX (2.)
227
228 1. (((
229 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,
230 //Hidden Charge States in Soft-X-Ray Laser-Produced Nanoplasmas Revealed by Fluorescence Spectroscopy//,
231 Phys. Rev. Lett. **112**, 183401 (2014);
232 [[http:~~/~~/dx.doi.org/10.1103/PhysRevLett.112.183401>>url:http://dx.doi.org/10.1103/PhysRevLett.112.183401||shape="rect"]]
233 )))
234 1. R.R. Fäustlin, U. Zastrau, S. Toleikis, I. Uschmann, E. Förster and Th. Tschentscher,
235 //A compact soft X-ray spectrograph combining high efficiency and resolution//,
236 JINST **5**, P02004 (2010);
237 [[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"]]
238
239 == MUSIX chamber ==
240
241 1. M. Beye, R.Y. Engel, J.O. Schunck, S. Dziarzhytski, G. Brenner, P.S. Miedema,
242 //Non-Linear Soft X-Ray Methods on Solids with MUSIX - the Multi-Dimensional Spectroscopy and Inelastic X-Ray Scattering Endstation//,
243 J. Phys.: Condens. Matter **31**, 014003 (2019)**,**
244 [[https:~~/~~/doi.org/10.1088/1361-648X/aaedf3>>url:https://doi.org/10.1088/1361-648X/aaedf3||shape="rect"]]
245
246 == URSA-PQ chamber ==
247
248 (% style="text-align:left" %)
249 1. (((
250 Jan Metje, Fabiano Lever, Dennis Mayer, Richard James Squibb, Matthew S. Robinson, Mario Niebuhr, Raimund Feifel, Stefan Düsterer, Markus Gühr,
251 //URSA-PQ: A Mobile and Flexible Pump-Probe Instrument for Gas Phase Samples at the FLASH Free Electron Laser//,
252 Appl. Sci. **10**, 7882 (2020); [[http:~~/~~/dx.doi.org/10.3390/app10217882>>url:http://dx.doi.org/10.3390/app10217882||shape="rect" style="text-decoration: none;"]]
253 )))
254
255 == Split and Delay Units: ==
256
257 === At beamline PG2 ===
258
259 1. F. Sorgenfrei, W.F. Schlotter, T. Beeck, M. Nagasono, S. Gieschen, H. Meyer, A. Föhlisch, M. Beye, and W. Wurth,
260 //The extreme ultraviolet split and femtosecond delay unit at the plane grating monochromator beamline PG2 at FLASH//,
261 Rev. of Sci. Instr. **81**, 043107 (2010);
262 [[http:~~/~~/dx.doi.org/10.1063/1.3374166>>url:http://dx.doi.org/10.1063/1.3374166||shape="rect"]]
263
264 === At beamline BL1 /CAMP ===
265
266 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,
267 //XUV double-pulses with femtosecond to 650 picoseconds separation from a multilayer mirror based split-and-delay unit at FLASH//,
268 J. Synchr. Rad. **25**, (% class="ica_pages" %)1517-1528(%%) (2018);
269 [[https:~~/~~/doi.org/10.1107/S1600577518006094>>url:https://doi.org/10.1107/S1600577518006094||shape="rect"]]
270
271 === At beamline BL2 ===
272
273 1. M. Wöstmann, R. Mitzner, T. Noll, S. Roling, B. Siemer, F. Siewert, S. Eppenhoff, F. Wahlert and H. Zacharias,
274 //The XUV split-and-delay unit at beamline BL2 at FLASH//,
275 J. Phys. B: At. Mol. Opt. Phys. **46**, Special Issue: Frontiers of FEL Science, 164005 (2013);
276 [[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"]]
277 1. R. Mitzner, B. Siemer, S. Roling, M. Wöstmann, T. Noll, F. Siewert, A.A. Sorokin, M. Richter, K. Tiedtke, H. Zacharias,
278 //A new soft x-ray autocorrelator – direct evaluation of the temporal properties of FEL pulses at 24 nm//,
279 Proceedings SRI 2009, AIP Conference Proceedings **1234**, pp. 19-22 (2010);
280 [[http:~~/~~/dx.doi.org/10.1063/1.3463172>>url:http://dx.doi.org/10.1063/1.3463172||shape="rect"]]
281
282 === At beamlines FL24/FL23 ===
283
284 1. (% style="color:#000000" %)Matthias Dreimann, Frank Wahlert, Dennis Eckermann, Felix Rosenthal, Sebastian Roling, Tobias Reiker, Marion Kuhlmann, Sven Toleikis, Maciej Brachmanski, Rolf Treusch, Elke Plönjes, Björn Siemer and Helmut Zacharias
285 //The soft X-ray and XUV split-and-delay unit at beamlines FL23/24 at FLASH2//
286 J. Synchrotron Rad. (%%)**30**(% style="color:#000000" %), (% class="ica_pages" %)479-489 (2023)(%%)
287 (% class="ica_doi" style="color:#000000" %)[[https:~~/~~/doi.org/10.1107/S1600577523000395>>url:https://doi.org/10.1107/S1600577523000395||shape="rect" style="text-decoration: none;" title="Open URL link"]]
288 1. M. Dreimann, S. Roling, F. Wahlert, S. Eppenhoff, M. Kuhlmann, S. Toleikis, M. Brachmanski, R. Treusch, E. Plönjes, H. Zacharias,
289 //A XUV and soft X-ray split-and-delay unit for FLASH2//,
290 Proc. SPIE **11776**, EUV and X-ray Optics, Sources, and Instrumentation; 117760R (30 April 2021);
291 [[https:~~/~~/doi.org/10.1117/12.2597647>>url:https://doi.org/10.1117/12.2597647||shape="rect"]]
292
293 == Fast Switching Mirror (BL beamlines) ==
294
295 1. R. Sternberger, M. Sachwitz, A. Donat, U. Gensch, R. Heller, LV. Vu, U. Hahn, H. Schulte-Schrepping, K. Tiedtke,
296 //A fast switching mirror unit at FLASH//,
297 Nucl. Instrum. Methods A **635**, S47-S51 (2011);
298 [[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"]]
299 1. J. Good, N. Leuschner, J. Nagler, F. Perlick, M. Sachwitz  and L.V. Vu,
300 //A Fast Switching Mirror Unit at FLASH//,
301 J. Phys.: Conf. Series **425**, 122008 (2013);
302 [[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"]]
303
304 == 4-mirror polarizer for circular polarization (BL beamlines) ==
305
306 1. C. von Korff Schmising et al.,
307 //Generating circularly polarized radiation in the extreme ultraviolet spectral range at the free-electron laser FLASH//,
308 Review of Scientic Instruments 88 053903 (2017);
309 [[https:~~/~~/doi.org/10.1063/1.4983056>>url:https://doi.org/10.1063/1.4983056||shape="rect"]]
310
311 == Fast shutter (BL, PG, and FLASH2 beamlines) ==
312
313 1. (((
314 E. Plönjes and K. Tiedtke,
315 //The Soft X-ray Free-Electron Laser FLASH at DESY//
316 in Optical Technologies for Extreme-Ultraviolet and Soft X-ray Coherent Sources,
317 edited by F. Canova and L. Poletto (Springer Series in Optical Sciences, Vol. 197, Springer, Heidelberg, 2015);
318 )))
319
320 == Photon diagnostics papers ==
321
322 === **a) Gas Monitor Detector (GMD)** ===
323
324 1. Andrey A. Sorokin, Yilmaz Bican, Susanne Bonfigt, Maciej Brachmanski, Markus Braune, Ulf Fini Jastrow, Alexander Gottwald, Hendrik Kaser, Mathias Richter and Kai Tiedtke,
325 //An X-ray gas monitor for free-electron lasers//,
326 J. Synchrotron Rad. **26**, 1092-1100 (2019);
327 [[https:~~/~~/doi.org/10.1107/S1600577519005174>>url:https://doi.org/10.1107/S1600577519005174||shape="rect"]]
328 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,
329 //Gas-detector for X-ray lasers//,
330 J. Appl. Phys. **103**, 094511 (2008);
331 [[http:~~/~~/dx.doi.org/10.1063/1.2913328>>url:http://dx.doi.org/10.1063/1.2913328||shape="rect"]]
332 1. __ GMD used to determine focal spot sizes__:  (% style="color:#000000" %)A.A. Sorokin, A. Gottwald, A. Hoehl, U. Kroth, H. Schöppe, G. Ulm, M. Richter, S.V. Bobashev, I. Domracheva, D. Smirnov, K. Tiedtke, S. Düsterer, J. Feldhaus, U. Hahn, U. Jastrow, M. Kuhlmann, T. Nuñez, E. Plönjes, and R. Treusch,(%%)
333 (% style="text-align:left" %)//Method based on atomic photoionization for spot-size measurement on focused soft x-ray free-electron laser beams//(% style="color:#000000" %),(%%)
334 (% style="color:#000000" %)Appl. Phys. Lett. (% style="text-align:left" %)**89**(% style="color:#000000" %), 221114 (2006); (%%)[[http:~~/~~/dx.doi.org/10.1063/1.2397561>>url:http://dx.doi.org/doi:10.1063/1.2397561||shape="rect" style="text-decoration: none;text-align: left;"]]
335
336 === **b) VLS Online Spectrometer** ===
337
338 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,
339 //First results from the online variable line spacing grating spectrometer at FLASH//,
340 Nucl. Instr. and Meth A **635**, S99–S103 (2011);
341 [[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"]]
342
343 **see also "Kalypso detector"**
344
345 1. Rota L et al.,
346 (% class="title-text" %)//KALYPSO: Linear array detector for high-repetition rate and real-time beam diagnostics//, (%%)
347 Nucl. Instr. and Meth. A 936 10-13 (2018)
348 [[https:~~/~~/doi.org/10.1016/j.nima.2018.10.093>>url:https://doi.org/10.1016/j.nima.2018.10.093||shape="rect"]]
349
350 === **c) FLASH1 Tunnel Spectrometer** ===
351
352 *
353 ** ===
354
355 1. S. Düsterer, P. Radcliffe, G. Geloni, U. Jastrow, M. Kuhlmann, E. Plönjes, K. Tiedtke, R. Treusch, J. Feldhaus, P. Nicolosi, L. Poletto, P. Yeates, H. Luna, J.T. Costello, P. Orr, D. Cubaynes and M. Meyer,
356 //Spectroscopic characterization of vacuum ultraviolet free electron laser pulses//,
357 Opt. Lett. **31**, 1750-1752 (2006);
358 [[http:~~/~~/dx.doi.org/10.1364/OL.31.001750>>url:http://dx.doi.org/doi:10.1364/OL.31.001750||shape="rect" style="letter-spacing: 0.0px;"]]
359
360 === **d) Compact Spectrometer** ===
361
362 *
363 ** ===
364
365 1. F. Frassetto, S. Coraggia, S. Dziarzhytski, N. Gerasimova, L. Poletto,
366 //Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH//,
367 J. Synchrotron Rad. **19**, 596-601 (2012);
368 [[http:~~/~~/dx.doi.org/10.1107/S0909049512022224>>url:http://dx.doi.org/10.1107/S0909049512022224||shape="rect"]]
369 1. Fabio Frassetto, Siarhei Dziarzhytski, Natalia Guerassimova and Luca Poletto,
370 //Compact spectrometer for on-line photon diagnostics at FLASH//,
371 J. Phys.: Conf. Ser. **425**,122010 (2013);
372 [[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"]]
373 1. F. Frassetto et al.,
374 (% class="title-text" %)//Compact spectrometer for photon diagnostics of the extreme-ultraviolet free-electron-laser radiation//, (%%)
375 Nucl. Instrum. Meth. A 635 S94-98 (2011)
376 [[https:~~/~~/doi.org/10.1016/j.nima.2010.11.004>>url:https://doi.org/10.1016/j.nima.2010.11.004||shape="rect"]]
377
378 === **e) Online photoionization spectrometer (OPIS)** ===
379
380 1. (((
381 Markus Braune, Jens Buck, Marion Kuhlmann, Sören Grunewald, Stefan Düsterer, Jens Viefhaus, Kai Tiedtke
382 //Non-invasive online wavelength measurements at FLASH2 and present benchmark.//
383 Proc. PhotonDiag2017,
384 J. Synchrotron Rad. **25**, 3–15 (2018)
385 (% style="color:#3366ff" %)__[[https:~~/~~/doi.org/10.1107/S1600577517013893>>url:https://doi.org/10.1107/S1600577517013893||shape="rect" style="color: rgb(51,102,255);"]]__
386 )))
387 1. Markus Braune, Günter Brenner, Siarhei Dziarzhytski, Pavle Juranić, Andrey Sorokin, Kai Tiedtke,
388 //A non-invasive online photoionization spectrometer for FLASH2//,
389 Proc. PhotonDiag2015,
390 J. Synchrotron Rad. **23**, 10-20 (2016);
391 [[__http:~~/~~/dx.doi.org/10.1107/S1600577515022675__>>url:http://dx.doi.org/10.1107/S1600577515022675||shape="rect"]]
392 1. Wellhöfer, J.T. Hoeft, M. Martins, W. Wurth, M. Braune, J. Viefhaus, M. Richter, K. Tiedtke,
393 //Photoelectron spectroscopy as non-invasive method to monitor SASE-FEL radiation//,
394 JINST **3**, P02003 (2008);
395 [[__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"]]
396
397 === **f) Gotthard detector** ===
398
399 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,
400 //Spectrometer for shot-to-shot photon energy characterization in the multi-bunch mode of the free electron laser at Hamburg//,
401 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"]]
402
403 === **g) KALYPSO detector** ===
404
405 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,
406 //Linear array detector for online diagnostics of spectral distributions at MHz repetition rates//,
407 J. Synchrotron Rad. **26**, 1514-1522 (2019);
408 [[https:~~/~~/doi.org/10.1107/S1600577519007835>>url:https://doi.org/10.1107/S1600577519007835||shape="rect"]]
409
410 === **h) Timing tools (photon arrival time monitors)** ===
411
412 *
413 ** ===
414
415 1. E. Zapolnova, R. Pan, T. Golz, M. Sindik, M. Nikolic, M. Temme, M. Rabasovic, D. Grujic, Z. Chen, S. Toleikis, N. Stojanovic,
416 //XUV-driven plasma switch for THz: new spatio-temporal overlap tool for XUV−THz pump−probe experiments at FELs//,
417 J. Synchrotron Rad. **27**, 11-16 (2020);
418 [[https:~~/~~/doi.org/10.1107/S1600577519014164>>url:https://doi.org/10.1107/S1600577519014164||shape="rect"]]
419 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,
420 //Plasma switch as a temporal overlap tool for pump-probe experiments at FEL facilities//,
421 JINST **7**, P08007 (2012);
422 [[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"]]
423 1. M. Drescher, U. Frühling, M. Krikunova, Th. Maltezopoulos, M. Wieland,
424 //Time-diagnostics for improved dynamics experiments at XUV FELs//,
425 J. Phys. B, **43**, 194010 (2010);
426 [[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"]]
427 1. T. Maltezopoulos, S. Cunovic, M. Wieland, M. Beye, A. Azima, H. Redlin, M. Krikunova, R. Kalms, U. Frühling, F. Budzyn, W. Wurth, A. Föhlisch, M. Drescher,
428 //Single-shot timing measurement of extreme-ultraviolet free-electron laser pulses,//
429 New Journal of Physics **10**, 033026 (2008);
430 [[http:~~/~~/dx.doi.org/10.1088/1367-2630/10/3/033026>>url:http://dx.doi.org/10.1088/1367-2630/10/3/033026||shape="rect"]]
431 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,
432 //A femtosecond X-ray/optical cross-correlator//,
433 Nature Photonics **2**, 165-169 (2008);
434 [[__http:~~/~~/dx.doi.org/10.1038/nphoton.2007.298__>>url:http://dx.doi.org/10.1038/nphoton.2007.298||shape="rect"]]
435
436 === **i) XUV Pulse Length measurements** ===
437
438 *
439 ** ===
440
441 1. **(overview)**
442 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,
443 //Development of experimental techniques for the characterization of ultrashort photon pulses of extreme ultraviolet free-electron lasers//,
444 Phys. Rev. STAB **17**, 120702 (2014);
445 [[__http:~~/~~/dx.doi.org/10.1103/PhysRevSTAB.17.120702__>>url:http://dx.doi.org/10.1103/PhysRevSTAB.17.120702||shape="rect"]]
446 1. **(THz streaking - different pulse durations)**
447 R. Ivanov, (% class="nowrap" %)I. Bermúdez Macias(%%), (% class="nowrap" %)J. Liu(%%), (% class="nowrap" %)G. Brenner(%%), (% class="nowrap" %)J. Roensch-Schulenburg(%%), (% class="nowrap" %)G. Kurdi(%%), (% class="nowrap" %)U. Fruehling, K, Wenig(%%), (% class="nowrap" %)S Walther(%%), (% class="nowrap" %)A Dimitriou(% class="reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %), (% class="nowrap reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %)M Drescher(% class="reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %), (% class="nowrap reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %)I P Sazhina(% class="reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %), (% class="nowrap reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %)A K Kazansky(% class="reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %), (% class="nowrap reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %)N M Kabachnik(% class="reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %) and (% class="nowrap reveal-container reveal-content reveal-enabled reveal-no-animation reveal-plus-icon" %)S. Düsterer(%%)
448 //Single-shot temporal characterization of XUV pulses with duration from ~~10 fs to ~~350 fs at FLASH//
449 J. Phys. B: At. Mol. Opt. Phys. (2020)
450 (% class="Object" %)__[[https:~~/~~/doi.org/10.1088/1361-6455/ab9c38>>url:https://doi.org/10.1088/1361-6455/ab9c38||shape="rect"]]__
451 1. (((
452 **(THz streaking - statistical analysis)**
453 I. J. Bermúdez Macias, S. Düsterer, R. Ivanov, J. Liu, G. Brenner, J.Rönsch-Schulenburg, M.K. Czwalinna, and M. V. Yurkov,
454 //Study of temporal, spectral, arrival time and energy fluctuations of SASE FEL pulses//,
455 Optics Express 29, 10491-10508 (2021); 
456 __[[https:~~/~~/doi.org/10.1364/OE.419977>>url:https://doi.org/10.1364/OE.419977||shape="rect" style="letter-spacing: 0.0px;"]]__
457 )))
458
459 {{expand title="Further references - Click here to expand..."}}
460 1. **(general overview - not only FLASH)**
461 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,
462 //Ultrashort Free-Electron Laser X-ray Pulses//,
463 Appl. Sci. **7**, 915 (2017);
464 __[[http:~~/~~/dx.doi.org/10.3390/app7090915>>url:http://dx.doi.org/10.3390/app7090915||shape="rect"]]__
465 1. **(THz streaking)**
466 R. Ivanov, J. Liu, G. Brenner, M. Brachmanski, S. Düsterer,
467 //FLASH free-electron laser single-shot temporal diagnostic: terahertz-field-driven streaking//,
468 Special Issue (PhotonDiag2017),
469 J. Synchrotron Rad**. 25, **26-31 (2018);
470 [[https:~~/~~/doi.org/10.1107/S160057751701253X>>url:https://doi.org/10.1107/S160057751701253X||shape="rect"]]
471 1. **(THz streaking)**
472 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,
473 //Ultrafast X-ray pulse characterization at free-electron lasers//,
474 Nature Photonics **6**, 852-857 (2012);
475 [[http:~~/~~/dx.doi.org/10.1038/NPHOTON.2012.276>>url:http://dx.doi.org/10.1038/NPHOTON.2012.276||shape="rect"]]
476 1. **(THz streaking)**
477 U. Frühling, M. Wieland, M. Gensch, T. Gebert, B. Schütte, M. Krikunova, R. Kalms^^.^^, F. Budzyn, O. Grimm, J. Rossbach, E. Plönjes, M. Drescher,
478 //Single-shot THz field driven X-ray streak-camera//,
479 Nature Photonics **3**, 523-528 (2009);
480 [[http:~~/~~/dx.doi.org/10.1038/nphoton.2009.160>>url:http://dx.doi.org/10.1038/nphoton.2009.160||shape="rect"]]
481 1. **(spectral measurements)**
482 R. Engel, S. Düsterer, G. Brenner, and U. Teubner,
483 //Quasi-real-time photon pulse duration measurement by analysis of FEL radiation spectra//,
484 Proc. PhotonDiag2015,
485 J. Synchrotron Rad. **23**, 118-122 (2016);
486 [[__http:~~/~~/dx.doi.org/10.1107/S1600577515022997__>>url:http://dx.doi.org/10.1107/S1600577515022997||shape="rect"]]
487 1. (((
488 **(spectral and electron measurements, LOLA)**
489 Behrens C. , Gerasimova N., Gerth Ch., Schmidt B., Schneidmiller E. ,Serkez S., Wesch S., Yurkov, M.  
490 //Constraints on photon pulse duration from longitudinal electron beamdiagnostics at a soft X-ray free-electron laser//
491 Phys. Rev. STAB **15**, 030707 (2012);
492 [[http:~~/~~/dx.doi.org/10.1103/PhysRevSTAB.15.030707>>url:http://dx.doi.org/10.1103/PhysRevSTAB.15.030707||shape="rect"]]
493 )))
494 1. (((
495 **(reflectivity change on solids)**
496 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,
497 //Single-shot pulse duration monitor for extreme ultraviolet and X-ray free-electron lasers//,
498 Nature Comm. **4**, 1731 (2013);
499 [[http:~~/~~/dx.doi.org/10.1038/ncomms2754>>url:http://dx.doi.org/10.1038/ncomms2754||shape="rect"]]
500 )))
501
502
503 {{/expand}}
504
505
506 === **j) Wavefront Sensor and Wigner Distribution measurements** ===
507
508 *
509 ** ===
510
511 1. B. Keitel, E. Plönjes, S. Kreis, M. Kuhlmann, K. Tiedtke, T. Mey, B. Schäfer, K. Mann,
512 //Hartmann wavefront sensors and their application at FLASH//,
513 Proc. PhotonDiag2015,
514 J. Synchrotron Rad. **23**, 43-49 (2016);
515 [[http:~~/~~/dx.doi.org/10.1107/S1600577515020354>>url:http://dx.doi.org/10.1107/S1600577515020354||shape="rect"]]
516 1. K. Mann, B. Flöter, T. Mey, B. Schäfer, B. Keitel, E. Plönjes, K. Tiedtke,
517 //Hartmann wavefront sensor for EUV radiation//,
518 Proc. SPIE **8679**, Extreme Ultraviolet (EUV) Lithography IV, 867922 (April 1, 2013);
519 [[http:~~/~~/dx.doi.org/10.1117/12.2011508>>url:http://dx.doi.org/10.1117/12.2011508||shape="rect"]]
520
521 {{expand title="Further References: click here to expand..."}}
522 1. T. Mey, //Radiation characteristics of extreme UV and soft X-ray sources//
523 PhD Thesis, Georg-August-Universität Göttingen.
524 Göttingen Series in X-ray Physics; 15 (2015), Universitätsverlag Göttingen, Göttingen, ISBN13: 978-3-86395-211-2;
525 [[__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)
526 1. T. Mey, B. Schäfer, K. Mann, B. Keitel, M. Kuhlmann, and E. Plönjes,
527 //Wigner distribution measurements of the spatial coherence properties of the free-electron laser FLASH//
528 Optics Express **22**, 16571 (2014);
529 [[__http:~~/~~/dx.doi.org/10.1364/OE.22.016571__>>url:http://http/dx.doi.org/10.1364/OE.22.016571||shape="rect"]]
530 1. B. Flöter, //Strahlcharakterisierung von Freie-Elektronen-Lasern im weichen Röntgen-Spektralbereich// 
531 PhD Thesis, Georg-August-Universität Göttingen,
532 Göttingen Series in X-ray Physics; 8 (2012), Universitätsverlag Göttingen, Göttingen, ISBN13: 978-3-86395-074-3;
533 [[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)
534 {{/expand}}
535
536
537 ----
538
539 = Pump-Probe Laser systems =
540
541 **a) FLASH2**
542
543 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,
544 Versatile OPCPA Pump-Probe Laser System for the FLASH2 XUV FEL Beamline at DESY,
545 //2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)//, Munich, Germany, 2019, pp. 1-1;
546 [[http:~~/~~/dx.doi.org/10.1109/CLEOE-EQEC.2019.8871596>>url:http://dx.doi.org/10.1109/CLEOE-EQEC.2019.8871596||shape="rect"]]
547 1. N. Schirmel, S. Alisauskas, T. Hülsenbusch, B. Manschwetus, C. Mohr, L. Winkelmann, U. Große-Wortmann, J. Zheng, T. Lang, and I. Hartl,
548 //Long-Term Stabilization of Temporal and Spectral Drifts of a Burst-Mode OPCPA System//,
549 in //Conference on Lasers and Electro-Optics//, OSA Technical Digest (Optical Society of America, 2019), paper STu4E.4.;
550 [[https:~~/~~/doi.org/10.1364/CLEO_SI.2019.STu4E.4>>url:https://doi.org/10.1364/CLEO_SI.2019.STu4E.4||shape="rect"]]
551
552 **b) FLASH1**
553
554 1. H. Redlin, A. Al-Shemmary, A. Azima, N. Stojanovic, F. Tavella, I. Will, S. Düsterer,
555 //The FLASH pump-probe laser system: Setup, characterization and optical beamlines//.,
556 Nucl. Instrum. Methods A **635**, 88–93 (2011);
557 [[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"]]
558 1. **(FEL-laser synchronization)**
559 S. Schulz, M. K. Czwalinna, M. Felber, P. Prędki, S. Schefer, H. Schlarb, U. Wegner,
560 //Femtosecond-precision synchronization of the pump-probe optical laser for user experiments at FLASH//,
561 Proc. SPIE **8778**, Advances in X-ray Free-Electron Lasers II: Instrumentation, 87780R (May 3, 2013);
562 [[http:~~/~~/dx.doi.org/10.1117/12.2021572>>url:http://dx.doi.org/10.1117/12.2021572||shape="rect"]]
563
564
565 **c) pump-probe data analysis**
566
567 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,
568 //Jitter-Correction for IR/UV-XUV Pump-Probe Experiments at the FLASH Free-Electron Laser//,
569 New J. Phys. **19**, 043009 (2017),
570 [[https:~~/~~/doi.org/10.1088/1367-2630/aa652d>>url:https://doi.org/10.1088/1367-2630/aa652d||shape="rect"]]
571
572 **d) HHG laser source at FL26/ReMi**
573
574 1. (((
575 E. Appi, C. C. Papadopoulou, J. L. Mapa, C. Jusko, P. Mosel, A. Schoenberg, J. Stock, T. Feigl, S. Ališauskas, T. Lang, C. M. Heyl, B. Manschwetus, M. Brachmanski, M. Braune, H. Lindenblatt, F. Trost, S. Meister, P. Schoch, A. Trabattoni, F. Calegari, R. Treusch, R. Moshammer, I. Hartl, U. Morgner, and M. Kovacev,
576 //Synchronized beamline at FLASH2 based on high-order harmonic generation for two-color dynamics studies//,
577 Rev. Sci. Instrum. **92**, 123004 (2021);
578 [[https:~~/~~/doi.org/10.1063/5.0063225>>url:https://doi.org/10.1063/5.0063225||shape="rect"]]
579 )))
580 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
581 Trost, Severin Meister, Patrizia Schoch, Rolf Treusch, Robert Moshammer, Ingmar Hartl, Uwe Morgner, and Milutin Kovacev,
582 //A synchronized VUV light source based on high-order harmonic generation at FLASH//,
583 Sci. Rep. **10**, 6867 (2020);
584 (% class="nolink" style="color:#003366" %)[[https:~~/~~/doi.org/10.1038/s41598-020-63019-2>>url:https://doi.org/10.1038/s41598-020-63019-2||shape="rect"]]
585
586 = Data analysis =
587
588 **Sorting data**
589
590 1. Dennis Mayer, Fabiano Lever and Markus Gühr,  ** (sorting GMD, BAM and Spectrum)**
591 (% style="letter-spacing:0.0px" %)//Data analysis procedures for time-resolved x-ray photoelectron spectroscopy at a SASE free-electron-laser,//(%%)
592 Phys. B: At. Mol. Opt. Phys. **55**, 054002 (2022); [[https:~~/~~/doi.org/10.1088/1361-6455/ac3c91>>url:https://doi.org/10.1088/1361-6455/ac3c91||shape="rect" style="letter-spacing: 0.0px;"]]
593 1. (((
594 R. Patrick Xian, Yves Acremann, Steinn Y. Agustsson, Maciej Dendzik, Kevin Bühlmann, Davide Curcio, Dmytro Kutnyakhov, Frederico Pressacco, Michael Heber, Shuo Dong, Tommaso Pincelli, Jure Demsar, Wilfried Wurth, Philip Hofmann, Martin Wolf, Markus Scheidgen, Laurenz Rettig, Ralph Ernstorfer, (% style="letter-spacing:0.0px" %)** (HEXTOF analysis)**(%%)
595 (% style="letter-spacing:0.0px" %)//An open-source, end-to-end workflow for multidimensional photoemission spectroscopy//,
596 Scientific Data **7**, 442 (2020); (%%)[[https:~~/~~/doi.org/10.1038/s41597-020-00769-8>>url:https://doi.org/10.1038/s41597-020-00769-8||shape="rect" style="text-decoration: none;"]]
597 )))
598 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, **(BAM and streak camera sorting)**
599 //Jitter-Correction for IR/UV-XUV Pump-Probe Experiments at the FLASH Free-Electron Laser//,
600 New J. Phys. **19**, 043009 (2017),
601 [[https:~~/~~/doi.org/10.1088/1367-2630/aa652d>>url:https://doi.org/10.1088/1367-2630/aa652d||shape="rect"]]
602
603 ----
604
605 = Other references =
606
607 **Damage Tresholds of optical components, start at TTF1**
608
609 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,
610 Conductors, semiconductors, and insulators irradiated with shortwavelength free-electron laser,
611 J. Appl. Phys. **101**, 043107 (2007);
612 [[http:~~/~~/dx.doi.org/10.1063/1.2434989>>url:http://dx.doi.org/10.1063/1.2434989||shape="rect"]]
613
614 **Study of fluorescent crystals for beam profile imaging, start at TTF1**
615
616 1. Kirm, A. Andrejczuk, J.Krzywinski, and R. Sobierajski,
617 //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//,
618 phys. stat. sol. (c) **2**, 649-652 (2005);
619 [[__http:~~/~~/dx.doi.org/10.1002/pssc.200460255__>>url:http://dx.doi.org/10.1002/pssc.200460255||shape="rect"]]
620
621 **Study of carbon coatings for FEL mirrors,  start at TTF1**
622
623 1. Steeg, L. Juha, J. Feldhaus, S. Jacobi, R. Sobierajski, C.Michaelsen, A. Andrejczuk, and J. Krzywinski,
624 //Total reflection amorphous carbon mirrors for vacuum ultraviolet free electron lasers//,
625 Appl. Phys. Lett. **84**, 657-659 (2004);
626 [[__http:~~/~~/dx.doi.org/10.1063/1.1645320__>>url:http://dx.doi.org/10.1063/1.1645320||shape="rect"]]
627 {{/layout-cell}}
628 {{/layout-section}}
629 {{/layout}}