Version 111.1 by treusch on 2025-11-26 15:39

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1 {{info}}
2 **Collection of reference papers for FLASH1 and FLASH2 beamlines and instruments.**
3
4 **Last update:** {{date value="2025-09-18 00:00" format="yyyy-MM-dd"/}}
5
6 **In case of multiple references, the most complete or up-to-date is 1st.**
7 {{/info}}
8
9
10
11 {{toc exclude="Task report"/}}
12
13
14 = FEL Accelerator Part =
15
16 1. W. Ackermann et al.,
17 //Operation of a Free Electron Laser in the Wavelength Range from the Extreme Ultraviolet to the Water Window//,
18 Nature Photonics **1**, 336-342 (2007);
19 [[http:~~/~~/dx.doi.org/10.1038/nphoton.2007.76>>url:http://dx.doi.org/10.1038/nphoton.2007.76||shape="rect"]]
20
21 **FLASH2 and other recent developments (such as FLASH2020+ upgrade pogram):**
22
23 1. Martin Beye, Markus Gühr, Ingmar Hartl, Elke Plönjes, Lucas Schaper, Siegfried Schreiber, Kai Tiedtke and Rolf Treusch,
24 //FLASH and the FLASH2020+ project - current status and upgrades for the free-electron laser in Hamburg at DESY//,
25 Eur. Phys. J. Plus **138**, 193 (2023);
26 [[https:~~/~~/doi.org/10.1140/epjp/s13360-023-03814-8>>url:https://doi.org/10.1140/epjp/s13360-023-03814-8]]
27 1. B. Faatz et al.,
28 //Simultaneous operation of two soft x-ray free-electron lasers driven by one linear accelerator//,
29 New J. Phys. **18**, 062002 (2016);
30 [[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"]]
31 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,
32 //The FLASH Facility: Advanced Options for FLASH2 and Future Perspectives//,
33 Appl. Sci. **7**, 1114 (2017);
34 [[http:~~/~~/dx.doi.org/10.3390/app7111114>>url:http://dx.doi.org/10.3390/app7111114||shape="rect"]]
35 1. J. Rönsch-Schulenburg, B. Faatz, K. Honkavaara, M. Kuhlmann, S. Schreiber, R. Treusch,
36 //Experience with Multi-Beam and Multi-Beamline FEL-Operation//,
37 Proc. IPAC17, Copenhagen, Denmark (2017),
38 J.Phys.: Conf. Ser. **874**, 012023 (2017);
39 [[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"]]
40 1. S. Toleikis for the whole FLASH team,
41 //The FLASH facility - current status in 2018 and future upgrade plans//,
42 AIP Conf. Proc. **2054**, 030015 (2019);
43 [[http:~~/~~/dx.doi.org/10.1063/1.5084578>>url:http://dx.doi.org/10.1063/1.5084578||shape="rect"]]
44
45 **Afterburner Undulator at FLASH2:**
46
47 1. M. Tischer, H. Bienert, K. Götze, D. Meissner, P. Neumann, P. N'Gotta, T. Ramm, A. Schöps, P. Talkovski, S. Telawane,
48 //Development of an APPLE-III undulator for FLASH-2//,
49 Proc. SRI 2021, Online (2021), J. Phys.: Conf. Ser. **2380,** 012017 (2022);
50 [[https:~~/~~/dx.doi.org/10.1088/1742-6596/2380/1/012017>>url:https://dx.doi.org/10.1088/1742-6596/2380/1/012017]]
51 1. M. Mehrjoo, B. Faatz, G. Paraskaki, M. Tischer, P. Vagin,
52 //Expected Radiation Properties of the Harmonic Afterburner at FLASH2//,
53 Proc. FEL 2019, Hamburg, Germany (2019), Paper WEP072 via JACoW;
54 [[https:~~/~~/dx.doi.org/10.18429/JACoW-FEL2019-WEP072>>url:https://dx.doi.org/10.18429/JACoW-FEL2019-WEP072]]
55 1. (((
56 M. Tischer, H. Bienert, K. Götze, P. Neumann, T. Ramm, A. Schöps, P. Talkovski, S. Telawane and P. Vagin,
57 //Construction and commissioning of an APPLE-III afterburner undulator as a prototype for radiators in the new seeding line of FLASH2020+,//
58 Proc. SRI 2024, Hamburg, Germany, J. Phys.: Conf. Ser. **3010**, 012045 (2025);
59 [[https:~~/~~/doi.org/10.1088/1742-6596/3010/1/012045>>https://doi.org/10.1088/1742-6596/3010/1/012045]]
60 )))
61
62 == FEL machine diagnostics ==
63
64 **a) Longitudinal FEL beam diagnostics (PolariX (1. / 2.) and LOLA (3.))**
65
66 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,
67 //Experimental demonstration of novel beam characterization// //using a polarizable X‑band// //transverse deflection structure//,
68 Scientific Reports **11**,3560 (2021);
69 [[https:~~/~~/doi.org/10.1038/s41598-021-82687-2>>url:https://doi.org/10.1038/s41598-021-82687-2||shape="rect"]]
70 1. F. Christie, J. Rönsch-Schulenburg, M. Vogt​​​​​​,
71 //​ A PolariX TDS FOR THE FLASH2 BEAMLINE ​​​​//
72 ​​​[[https:~~/~~/accelconf.web.cern.ch/fel2019/papers/wep006.pdf>>url:https://accelconf.web.cern.ch/fel2019/papers/wep006.pdf]]
73 1. C. Behrens, N. Gerasimova, Ch. Gerth, B. Schmidt, E. A. Schneidmiller, S. Serkez, S. Wesch, and M. V. Yurkov,
74 Constraints on photon pulse duration from longitudinal electron beam diagnostics at a soft x-ray free-electron laser,
75 Phys. Rev. ST Accel. Beams **15**, 030707 (2012)
76 [[https:~~/~~/doi.org/10.1103/PhysRevSTAB.15.030707>>url:https://doi.org/10.1103/PhysRevSTAB.15.030707||shape="rect"]]
77
78 **b) Synchronization and Electron Bunch Arrvial time Monitor (BAM)**
79
80 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,
81 //Femtosecond all-optical synchronization of an X-ray free-electron laser//,
82 Nature Communications **6**, 5938 (2015);
83 [[__http:~~/~~/dx.doi.org/10.1038/ncomms6938__>>url:http://dx.doi.org/10.1038/ncomms6938||shape="rect"]]
84 1. (((
85 (% class="pub-info" %)
86 A. Angelovski, et al.
87 //Evaluation of the cone-shaped pickup performance for low charge sub-10 fs arrival-time measurements at free electron laser facilities//
88 Phys. Rev. ST Accel. Beams **18**, 012801 (2015)
89 [[https:~~/~~/doi.org/10.1103/PhysRevSTAB.18.012801>>url:https://doi.org/10.1103/PhysRevSTAB.18.012801||shape="rect"]]
90 )))
91
92 ----
93
94 = User Facility/Beamline descriptions and Reviews =
95
96 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,
97 //The soft X-ray free-electron laser FLASH at DESY: beamlines, diagnostics, and end stations//,
98 New J. Phys. **11**, 023029 (2009);
99 [[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"]]
100
101 **Reviews**
102
103 1. Jörg Rossbach, Jochen R. Schneider, Wilfried Wurth,
104 //10 years of pioneering X-ray science at the Free-Electron Laser FLASH at DESY//,
105 Physics Reports **808**, 1-74 (2019);
106 [[https:~~/~~/doi.org/10.1016/j.physrep.2019.02.002>>url:https://doi.org/10.1016/j.physrep.2019.02.002||shape="rect"]]
107 1. Jochen R. Schneider,
108 //FLASH - from accelerator test facility to the first single-pass soft x-ray free-electron laser//,
109 J. Phys. B: At. Mol. Opt. Phys. **43**, 194001 (2010);
110 [[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"]]
111 1. J. Feldhaus,
112 //FLASH - the first soft x-ray free electron laser (FEL) user facility//,
113 J. Phys. B: At. Mol. Opt. Phys. **43**, 194002 (2010);
114 [[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"]]
115
116 == PG monochromator beamline ==
117
118 1. M. Martins, M. Wellhöfer, J.T. Hoeft, W. Wurth, J. Feldhaus, and R. Follath,
119 //Monochromator beamline for FLASH//,
120 Rev. Sci. Instrum. **77**, 115108 (2006);
121 [[http:~~/~~/dx.doi.org/10.1063/1.2364148>>url:http://dx.doi.org/10.1063/1.2364148||shape="rect"]]
122 1. N. Gerasimova, S. Dziarzhytski, J. Feldhaus,
123 //The monochromator beamline at FLASH: performance, capabilities and upgrade plans//,
124 Journal of Modern Optics **58**, 1480-1485 (2011); 
125 [[http:~~/~~/dx.doi.org/10.1080/09500340.2011.588344>>url:http://dx.doi.org/10.1080/09500340.2011.588344||shape="rect"]]
126
127 == THz Beamline ==
128
129 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,
130 //New infrared undulator beamline at FLASH//,
131 Infrared Phys. Technol. **51**, 423-425 (2008);
132 [[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"]]
133 1. E. Zapolnova, , T. Golz, R. Pan, K. Klose, S. Schreiber and N. Stojanovic.
134 //THz pulse doubler at FLASH: double pulses for pump–probe experiments at X-ray FELs//,
135 J. Synchrotron Rad. **25**, 39-43 (2018);
136 [[https:~~/~~/doi.org/10.1107/S1600577517015442>>url:https://doi.org/10.1107/S1600577517015442||shape="rect"]]
137 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,
138 //Photon diagnostics at the FLASH THz beamline//,
139 J. Synchrotron Rad. **26**, 700-707 (2019);
140 [[https:~~/~~/doi.org/10.1107/S1600577519003412>>url:https://doi.org/10.1107/S1600577519003412||shape="rect"]]
141
142 == CAMP chamber and BL1 (after 2014) ==
143
144 1. (((
145 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,
146 //CAMP@FLASH: an end-station for imaging, electron- and ion-spectroscopy, and pump–probe experiments at the FLASH free-electron laser,//
147
148 J. Synchrotron Rad. **25**(5), 1529 - 1540 (2018)
149 [[http:~~/~~/dx.doi.org/10.1107/S1600577518008585>>url:http://dx.doi.org/10.1107/S1600577518008585||shape="rect"]]
150 )))
151 1. (((
152 {{expand title="LCLS CAMP and pnCCD reference"}}
153 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,
154 //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//,
155 Nucl. Instrum. Methods A **614**, 483–496 (2010);
156 [[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"]]
157 {{/expand}}
158 )))
159
160 == Reaction Microscope (ReMi) at FL26 ==
161
162 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,
163 //Reaction Microscope Endstation at FLASH2//,
164 J. Synchrotron Rad. **26** (2019);
165 [[https:~~/~~/doi.org/10.1107/S1600577519002236>>url:https://doi.org/10.1107/S1600577519002236||shape="rect"]]
166 1. Severin Meister, Hannes Lindenblatt, Florian Trost, Kirsten Schnorr, Sven Augustin, Markus Braune, Rolf Treusch, Thomas Pfeifer, Robert Moshammer,
167 Atomic, Molecular and Cluster Science with the Reaction Microscope Endstation at FLASH2,
168 Appl. Sci. **10**, 2953 (2020);
169 [[https:~~/~~/doi.org/10.3390/app10082>>url:https://doi.org/10.3390/app10082||shape="rect"]]
170
171 == HEXTOF momentum microscope (mostly) at PG2 ==
172
173 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,
174 //Time- and momentum-resolved photoemission studies using time-of-flight momentum microscopy at a free-electron laser//,
175 Rev. Sci. Instrum. **91**, 013109 (2020);
176 [[https:~~/~~/doi.org/10.1063/1.5118777>>url:https://doi.org/10.1063/1.5118777||shape="rect"]]
177 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"]]
178
179 == MULTIP chamber ==
180
181 (% style="margin-left: 30.0px;" %)
182 Example experiments (on molecules, clusters and liquid jets) carried in the MULTIP chamber:
183
184 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,
185 //Generation and characterization of ultrathin free-flowing liquid sheets//,
186 Nature Comm. **9**, 1353 (2018);
187 [[http:~~/~~/dx.doi.org/10.1038/s41467-018-03696-w>>url:http://dx.doi.org/10.1038/s41467-018-03696-w||shape="rect"]]
188 1. (((
189 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,
190 //A sensitive EUV Schwarzschild microscope for plasma studies with sub-micrometer resolution//,
191 Rev. Sci. Instr. **89**, 023703 (2018);
192 [[http:~~/~~/dx.doi.org/10.1063/1.5007950>>url:http://dx.doi.org/10.1063/1.5007950||shape="rect"]]
193 )))
194 1. (((
195 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,
196 //Resolving Ultrafast Heating of Dense Cryogenic Hydrogen//,
197 Phys. Rev. Lett. **112**, 105002 (2014);
198 [[http:~~/~~/dx.doi.org/10.1103/PhysRevLett.112.105002>>url:http://dx.doi.org/10.1103/PhysRevLett.112.105002||shape="rect"]]
199 )))
200 1. (((
201 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,
202 //Generation of the simplest rotational wave packet in a diatomic molecule: Tracing a two-level superposition in the time domain//,
203 Phys. Rev. A **85**, 052503 (2012);
204 [[http:~~/~~/dx.doi.org/10.1103/PhysRevA.85.052503>>url:http://dx.doi.org/10.1103/PhysRevA.85.052503||shape="rect"]]
205 )))
206
207 (% style="margin-left: 30.0px;" %)
208 Additional XUV spectrometers: Knick-Spec (1.), HiTraX (2.)
209
210 1. (((
211 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,
212 //Hidden Charge States in Soft-X-Ray Laser-Produced Nanoplasmas Revealed by Fluorescence Spectroscopy//,
213 Phys. Rev. Lett. **112**, 183401 (2014);
214 [[http:~~/~~/dx.doi.org/10.1103/PhysRevLett.112.183401>>url:http://dx.doi.org/10.1103/PhysRevLett.112.183401||shape="rect"]]
215 )))
216 1. R.R. Fäustlin, U. Zastrau, S. Toleikis, I. Uschmann, E. Förster and Th. Tschentscher,
217 //A compact soft X-ray spectrograph combining high efficiency and resolution//,
218 JINST **5**, P02004 (2010);
219 [[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"]]
220
221 == MUSIX chamber ==
222
223 1. M. Beye, R.Y. Engel, J.O. Schunck, S. Dziarzhytski, G. Brenner, P.S. Miedema,
224 //Non-Linear Soft X-Ray Methods on Solids with MUSIX - the Multi-Dimensional Spectroscopy and Inelastic X-Ray Scattering Endstation//,
225 J. Phys.: Condens. Matter **31**, 014003 (2019)**,**
226 [[https:~~/~~/doi.org/10.1088/1361-648X/aaedf3>>url:https://doi.org/10.1088/1361-648X/aaedf3||shape="rect"]]
227
228 == URSA-PQ chamber ==
229
230 (% style="text-align:left" %)
231 1. (((
232 Jan Metje, Fabiano Lever, Dennis Mayer, Richard James Squibb, Matthew S. Robinson, Mario Niebuhr, Raimund Feifel, Stefan Düsterer, Markus Gühr,
233 //URSA-PQ: A Mobile and Flexible Pump-Probe Instrument for Gas Phase Samples at the FLASH Free Electron Laser//,
234 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;"]]
235 )))
236
237 == Split and Delay Units: ==
238
239 === At beamline PG2 ===
240
241 1. F. Sorgenfrei, W.F. Schlotter, T. Beeck, M. Nagasono, S. Gieschen, H. Meyer, A. Föhlisch, M. Beye, and W. Wurth,
242 //The extreme ultraviolet split and femtosecond delay unit at the plane grating monochromator beamline PG2 at FLASH//,
243 Rev. of Sci. Instr. **81**, 043107 (2010);
244 [[http:~~/~~/dx.doi.org/10.1063/1.3374166>>url:http://dx.doi.org/10.1063/1.3374166||shape="rect"]]
245
246 === At beamline BL1 /CAMP ===
247
248 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,
249 //XUV double-pulses with femtosecond to 650 picoseconds separation from a multilayer mirror based split-and-delay unit at FLASH//,
250 J. Synchr. Rad. **25**, (% class="ica_pages" %)1517-1528(%%) (2018);
251 [[https:~~/~~/doi.org/10.1107/S1600577518006094>>url:https://doi.org/10.1107/S1600577518006094||shape="rect"]]
252
253 === At beamline BL2 ===
254
255 1. M. Wöstmann, R. Mitzner, T. Noll, S. Roling, B. Siemer, F. Siewert, S. Eppenhoff, F. Wahlert and H. Zacharias,
256 //The XUV split-and-delay unit at beamline BL2 at FLASH//,
257 J. Phys. B: At. Mol. Opt. Phys. **46**, Special Issue: Frontiers of FEL Science, 164005 (2013);
258 [[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"]]
259 1. R. Mitzner, B. Siemer, S. Roling, M. Wöstmann, T. Noll, F. Siewert, A.A. Sorokin, M. Richter, K. Tiedtke, H. Zacharias,
260 //A new soft x-ray autocorrelator – direct evaluation of the temporal properties of FEL pulses at 24 nm//,
261 Proceedings SRI 2009, AIP Conference Proceedings **1234**, pp. 19-22 (2010);
262 [[http:~~/~~/dx.doi.org/10.1063/1.3463172>>url:http://dx.doi.org/10.1063/1.3463172||shape="rect"]]
263
264 === At beamlines FL24/FL23 ===
265
266 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
267 //The soft X-ray and XUV split-and-delay unit at beamlines FL23/24 at FLASH2//
268 J. Synchrotron Rad. (%%)**30**(% style="color:#000000" %), (% class="ica_pages" %)479-489 (2023)(%%)
269 (% 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"]]
270 1. M. Dreimann, S. Roling, F. Wahlert, S. Eppenhoff, M. Kuhlmann, S. Toleikis, M. Brachmanski, R. Treusch, E. Plönjes, H. Zacharias,
271 //A XUV and soft X-ray split-and-delay unit for FLASH2//,
272 Proc. SPIE **11776**, EUV and X-ray Optics, Sources, and Instrumentation; 117760R (30 April 2021);
273 [[https:~~/~~/doi.org/10.1117/12.2597647>>url:https://doi.org/10.1117/12.2597647||shape="rect"]]
274
275 == Fast Switching Mirror (BL beamlines) ==
276
277 1. R. Sternberger, M. Sachwitz, A. Donat, U. Gensch, R. Heller, LV. Vu, U. Hahn, H. Schulte-Schrepping, K. Tiedtke,
278 //A fast switching mirror unit at FLASH//,
279 Nucl. Instrum. Methods A **635**, S47-S51 (2011);
280 [[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"]]
281 1. J. Good, N. Leuschner, J. Nagler, F. Perlick, M. Sachwitz  and L.V. Vu,
282 //A Fast Switching Mirror Unit at FLASH//,
283 J. Phys.: Conf. Series **425**, 122008 (2013);
284 [[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"]]
285
286 == 4-mirror polarizer for circular polarization (BL beamlines) ==
287
288 1. C. von Korff Schmising et al.,
289 //Generating circularly polarized radiation in the extreme ultraviolet spectral range at the free-electron laser FLASH//,
290 Review of Scientic Instruments 88 053903 (2017);
291 [[https:~~/~~/doi.org/10.1063/1.4983056>>url:https://doi.org/10.1063/1.4983056||shape="rect"]]
292
293 == Fast shutter (BL, PG, and FLASH2 beamlines) ==
294
295 1. (((
296 E. Plönjes and K. Tiedtke,
297 //The Soft X-ray Free-Electron Laser FLASH at DESY//
298 in Optical Technologies for Extreme-Ultraviolet and Soft X-ray Coherent Sources,
299 edited by F. Canova and L. Poletto (Springer Series in Optical Sciences, Vol. 197, Springer, Heidelberg, 2015);
300 )))
301
302 == Photon diagnostics papers ==
303
304 === **a) Gas Monitor Detector (GMD)** ===
305
306 1. Andrey A. Sorokin, Yilmaz Bican, Susanne Bonfigt, Maciej Brachmanski, Markus Braune, Ulf Fini Jastrow, Alexander Gottwald, Hendrik Kaser, Mathias Richter and Kai Tiedtke,
307 //An X-ray gas monitor for free-electron lasers//,
308 J. Synchrotron Rad. **26**, 1092-1100 (2019);
309 [[https:~~/~~/doi.org/10.1107/S1600577519005174>>url:https://doi.org/10.1107/S1600577519005174||shape="rect"]]
310 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,
311 //Gas-detector for X-ray lasers//,
312 J. Appl. Phys. **103**, 094511 (2008);
313 [[http:~~/~~/dx.doi.org/10.1063/1.2913328>>url:http://dx.doi.org/10.1063/1.2913328||shape="rect"]]
314 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,(%%)
315 (% 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" %),(%%)
316 (% 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;"]]
317
318 === **b) VLS Online Spectrometer** ===
319
320 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,
321 //First results from the online variable line spacing grating spectrometer at FLASH//,
322 Nucl. Instr. and Meth A **635**, S99–S103 (2011);
323 [[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"]]
324 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,
325 //Linear array detector for online diagnostics of spectral distributions at MHz repetition rates//,
326 J. Synchrotron Rad. **26**, 1514-1522 (2019);
327 [[https:~~/~~/doi.org/10.1107/S1600577519007835>>url:https://doi.org/10.1107/S1600577519007835||shape="rect"]]
328
329 === **c) FLASH1 Tunnel Spectrometer** ===
330
331 ​​​​​​
332
333 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,
334 //Spectroscopic characterization of vacuum ultraviolet free electron laser pulses//,
335 Opt. Lett. **31**, 1750-1752 (2006);
336 [[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;"]]
337
338 === **d) Compact Spectrometer** ===
339
340 1. F. Frassetto, S. Coraggia, S. Dziarzhytski, N. Gerasimova, L. Poletto,
341 //Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH//,
342 J. Synchrotron Rad. **19**, 596-601 (2012);
343 [[http:~~/~~/dx.doi.org/10.1107/S0909049512022224>>url:http://dx.doi.org/10.1107/S0909049512022224||shape="rect"]]
344 1. Fabio Frassetto, Siarhei Dziarzhytski, Natalia Guerassimova and Luca Poletto,
345 //Compact spectrometer for on-line photon diagnostics at FLASH//,
346 J. Phys.: Conf. Ser. **425**,122010 (2013);
347 [[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"]]
348 1. F. Frassetto et al.,
349 (% class="title-text" %)//Compact spectrometer for photon diagnostics of the extreme-ultraviolet free-electron-laser radiation//, (%%)
350 Nucl. Instrum. Meth. A 635 S94-98 (2011)
351 [[https:~~/~~/doi.org/10.1016/j.nima.2010.11.004>>url:https://doi.org/10.1016/j.nima.2010.11.004||shape="rect"]]
352
353 === **e) Online photoionization spectrometer (OPIS)** ===
354
355 1. Gregor Hartmann, Gesa Goetzke, Stefan Düsterer, Peter Feuer-Forson, Fabiano Lever, David Meier, Felix Möller, Luis Vera Ramirez, Markus Guehr, Kai Tiedtke, Jens Viefhaus & Markus Braune,
356 //Unsupervised real‑world knowledge extraction via disentangled variational autoencoders for photon diagnostics//,
357 Sci. Rep. **12, **20783 (2022); [[https:~~/~~/doi.org/10.1038/s41598-022-25249-4>>url:https://doi.org/10.1038/s41598-022-25249-4]]
358 1. Markus Braune, Jens Buck, Marion Kuhlmann, Sören Grunewald, Stefan Düsterer, Jens Viefhaus, Kai Tiedtke
359 //Non-invasive online wavelength measurements at FLASH2 and present benchmark.//
360 Proc. PhotonDiag2017,
361 J. Synchrotron Rad. **25**, 3–15 (2018)
362 (% style="color:#3366ff" %)__[[https:~~/~~/doi.org/10.1107/S1600577517013893>>url:https://doi.org/10.1107/S1600577517013893||shape="rect" style="color: rgb(51,102,255);"]]__
363 1. Markus Braune, Günter Brenner, Siarhei Dziarzhytski, Pavle Juranić, Andrey Sorokin, Kai Tiedtke,
364 //A non-invasive online photoionization spectrometer for FLASH2//,
365 Proc. PhotonDiag2015,
366 J. Synchrotron Rad. **23**, 10-20 (2016);
367 [[__http:~~/~~/dx.doi.org/10.1107/S1600577515022675__>>url:http://dx.doi.org/10.1107/S1600577515022675||shape="rect"]]
368 1. Wellhöfer, J.T. Hoeft, M. Martins, W. Wurth, M. Braune, J. Viefhaus, M. Richter, K. Tiedtke,
369 //Photoelectron spectroscopy as non-invasive method to monitor SASE-FEL radiation//,
370 JINST **3**, P02003 (2008);
371 [[__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"]]
372
373 === **f) Gotthard detector** ===
374
375 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,
376 //Spectrometer for shot-to-shot photon energy characterization in the multi-bunch mode of the free electron laser at Hamburg//,
377 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"]]
378
379 === **g) KALYPSO detector** ===
380
381 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,
382 //Linear array detector for online diagnostics of spectral distributions at MHz repetition rates//,
383 J. Synchrotron Rad. **26**, 1514-1522 (2019);
384 [[https:~~/~~/doi.org/10.1107/S1600577519007835>>url:https://doi.org/10.1107/S1600577519007835||shape="rect"]]
385 1. Rota L et al.,
386 (% class="title-text" %)//KALYPSO: Linear array detector for high-repetition rate and real-time beam diagnostics//, (%%)
387 Nucl. Instr. and Meth. A 936 10-13 (2018)
388 [[https:~~/~~/doi.org/10.1016/j.nima.2018.10.093>>url:https://doi.org/10.1016/j.nima.2018.10.093||shape="rect"]]
389
390 === **h) Timing tools (photon arrival time monitors)** ===
391
392 1. E. Zapolnova, R. Pan, T. Golz, M. Sindik, M. Nikolic, M. Temme, M. Rabasovic, D. Grujic, Z. Chen, S. Toleikis, N. Stojanovic,
393 //XUV-driven plasma switch for THz: new spatio-temporal overlap tool for XUV−THz pump−probe experiments at FELs//,
394 J. Synchrotron Rad. **27**, 11-16 (2020);
395 [[https:~~/~~/doi.org/10.1107/S1600577519014164>>url:https://doi.org/10.1107/S1600577519014164||shape="rect"]]
396 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,
397 //Plasma switch as a temporal overlap tool for pump-probe experiments at FEL facilities//,
398 JINST **7**, P08007 (2012);
399 [[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"]]
400 1. M. Drescher, U. Frühling, M. Krikunova, Th. Maltezopoulos, M. Wieland,
401 //Time-diagnostics for improved dynamics experiments at XUV FELs//,
402 J. Phys. B, **43**, 194010 (2010);
403 [[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"]]
404 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,
405 //Single-shot timing measurement of extreme-ultraviolet free-electron laser pulses,//
406 New Journal of Physics **10**, 033026 (2008);
407 [[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"]]
408 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,
409 //A femtosecond X-ray/optical cross-correlator//,
410 Nature Photonics **2**, 165-169 (2008);
411 [[__http:~~/~~/dx.doi.org/10.1038/nphoton.2007.298__>>url:http://dx.doi.org/10.1038/nphoton.2007.298||shape="rect"]]
412
413 === **i) XUV Pulse Length measurements** ===
414
415 1. **(overview)**
416 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,
417 //Development of experimental techniques for the characterization of ultrashort photon pulses of extreme ultraviolet free-electron lasers//,
418 Phys. Rev. STAB **17**, 120702 (2014);
419 [[__http:~~/~~/dx.doi.org/10.1103/PhysRevSTAB.17.120702__>>url:http://dx.doi.org/10.1103/PhysRevSTAB.17.120702||shape="rect"]]
420 1. **(THz streaking - different pulse durations)**
421 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(%%)
422 //Single-shot temporal characterization of XUV pulses with duration from ~~10 fs to ~~350 fs at FLASH//
423 J. Phys. B: At. Mol. Opt. Phys. (2020)
424 (% class="Object" %)__[[https:~~/~~/doi.org/10.1088/1361-6455/ab9c38>>url:https://doi.org/10.1088/1361-6455/ab9c38||shape="rect"]]__
425 1. (((
426 **(THz streaking - statistical analysis)**
427 I. J. Bermúdez Macias, S. Düsterer, R. Ivanov, J. Liu, G. Brenner, J.Rönsch-Schulenburg, M.K. Czwalinna, and M. V. Yurkov,
428 //Study of temporal, spectral, arrival time and energy fluctuations of SASE FEL pulses//,
429 Optics Express 29, 10491-10508 (2021); 
430 __[[https:~~/~~/doi.org/10.1364/OE.419977>>url:https://doi.org/10.1364/OE.419977||shape="rect" style="letter-spacing: 0.0px;"]]__
431 )))
432
433 {{expand title="Further references - Click here to expand..."}}
434 1. **(general overview - not only FLASH)**
435 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,
436 //Ultrashort Free-Electron Laser X-ray Pulses//,
437 Appl. Sci. **7**, 915 (2017);
438 __[[http:~~/~~/dx.doi.org/10.3390/app7090915>>url:http://dx.doi.org/10.3390/app7090915||shape="rect"]]__
439 1. **(THz streaking)**
440 R. Ivanov, J. Liu, G. Brenner, M. Brachmanski, S. Düsterer,
441 //FLASH free-electron laser single-shot temporal diagnostic: terahertz-field-driven streaking//,
442 Special Issue (PhotonDiag2017),
443 J. Synchrotron Rad**. 25, **26-31 (2018);
444 [[https:~~/~~/doi.org/10.1107/S160057751701253X>>url:https://doi.org/10.1107/S160057751701253X||shape="rect"]]
445 1. **(THz streaking)**
446 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,
447 //Ultrafast X-ray pulse characterization at free-electron lasers//,
448 Nature Photonics **6**, 852-857 (2012);
449 [[http:~~/~~/dx.doi.org/10.1038/NPHOTON.2012.276>>url:http://dx.doi.org/10.1038/NPHOTON.2012.276||shape="rect"]]
450 1. **(THz streaking)**
451 U. Frühling, M. Wieland, M. Gensch, T. Gebert, B. Schütte, M. Krikunova, R. Kalms^^.^^, F. Budzyn, O. Grimm, J. Rossbach, E. Plönjes, M. Drescher,
452 //Single-shot THz field driven X-ray streak-camera//,
453 Nature Photonics **3**, 523-528 (2009);
454 [[http:~~/~~/dx.doi.org/10.1038/nphoton.2009.160>>url:http://dx.doi.org/10.1038/nphoton.2009.160||shape="rect"]]
455 1. **(spectral measurements)**
456 R. Engel, S. Düsterer, G. Brenner, and U. Teubner,
457 //Quasi-real-time photon pulse duration measurement by analysis of FEL radiation spectra//,
458 Proc. PhotonDiag2015,
459 J. Synchrotron Rad. **23**, 118-122 (2016);
460 [[__http:~~/~~/dx.doi.org/10.1107/S1600577515022997__>>url:http://dx.doi.org/10.1107/S1600577515022997||shape="rect"]]
461 1. (((
462 **(spectral and electron measurements, LOLA)**
463 Behrens C. , Gerasimova N., Gerth Ch., Schmidt B., Schneidmiller E. ,Serkez S., Wesch S., Yurkov, M.  
464 //Constraints on photon pulse duration from longitudinal electron beamdiagnostics at a soft X-ray free-electron laser//
465 Phys. Rev. STAB **15**, 030707 (2012);
466 [[http:~~/~~/dx.doi.org/10.1103/PhysRevSTAB.15.030707>>url:http://dx.doi.org/10.1103/PhysRevSTAB.15.030707||shape="rect"]]
467 )))
468 1. (((
469 **(reflectivity change on solids)**
470 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,
471 //Single-shot pulse duration monitor for extreme ultraviolet and X-ray free-electron lasers//,
472 Nature Comm. **4**, 1731 (2013);
473 [[http:~~/~~/dx.doi.org/10.1038/ncomms2754>>url:http://dx.doi.org/10.1038/ncomms2754||shape="rect"]]
474 )))
475
476
477 {{/expand}}
478
479
480 === **j) Wavefront Sensor and Wigner Distribution measurements** ===
481
482 1. Barbara Keitel, Jaromír Chalupský, Šimon Jelínek, Tomáš Burian, Siarhei Dziarzhytski, Věra Hájková, Libor Juha, Zuzana Kuglerová, Marion Kuhlmann, Klaus Mann, Mabel Ruiz-Lopez, Bernd Schäfer, Vojtěch Vozda, Thomas Wodzinski, Mikhail V. Yurkov, and Elke Plönjes,
483 //Comparison of wavefront sensing and ablation imprinting for FEL focus diagnostics at FLASH2//,
484 Opt. Express **32**, 21532-21552 (2024); [[https:~~/~~/doi.org/10.1364/OE.527418>>url:https://doi.org/10.1364/OE.527418]]
485 1. (((
486 B. Keitel, E. Plönjes, S. Kreis, M. Kuhlmann, K. Tiedtke, T. Mey, B. Schäfer, K. Mann,
487 //Hartmann wavefront sensors and their application at FLASH//,
488 Proc. PhotonDiag2015,
489 J. Synchrotron Rad. **23**, 43-49 (2016);
490 [[http:~~/~~/dx.doi.org/10.1107/S1600577515020354>>url:http://dx.doi.org/10.1107/S1600577515020354||shape="rect"]]
491 )))
492
493 {{expand title="Further References: click here to expand..."}}
494 1.
495 1. K. Mann, B. Flöter, T. Mey, B. Schäfer, B. Keitel, E. Plönjes, K. Tiedtke,
496 //Hartmann wavefront sensor for EUV radiation//,
497 Proc. SPIE **8679**, Extreme Ultraviolet (EUV) Lithography IV, 867922 (April 1, 2013);
498 [[http:~~/~~/dx.doi.org/10.1117/12.2011508>>url:http://dx.doi.org/10.1117/12.2011508||shape="rect"]]
499 1. T. Mey, //Radiation characteristics of extreme UV and soft X-ray sources//
500 PhD Thesis, Georg-August-Universität Göttingen.
501 Göttingen Series in X-ray Physics; 15 (2015), Universitätsverlag Göttingen, Göttingen, ISBN13: 978-3-86395-211-2;
502 [[__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)
503 1. T. Mey, B. Schäfer, K. Mann, B. Keitel, M. Kuhlmann, and E. Plönjes,
504 //Wigner distribution measurements of the spatial coherence properties of the free-electron laser FLASH//
505 Optics Express **22**, 16571 (2014);
506 [[__http:~~/~~/dx.doi.org/10.1364/OE.22.016571__>>url:http://http/dx.doi.org/10.1364/OE.22.016571||shape="rect"]]
507 1. B. Flöter, //Strahlcharakterisierung von Freie-Elektronen-Lasern im weichen Röntgen-Spektralbereich// 
508 PhD Thesis, Georg-August-Universität Göttingen,
509 Göttingen Series in X-ray Physics; 8 (2012), Universitätsverlag Göttingen, Göttingen, ISBN13: 978-3-86395-074-3;
510 [[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)
511 {{/expand}}
512
513
514 ----
515
516 = Pump-Probe Laser systems =
517
518 **a) FLASH2**
519
520 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,
521 Versatile OPCPA Pump-Probe Laser System for the FLASH2 XUV FEL Beamline at DESY,
522 //2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)//, Munich, Germany, 2019, pp. 1-1;
523 [[http:~~/~~/dx.doi.org/10.1109/CLEOE-EQEC.2019.8871596>>url:http://dx.doi.org/10.1109/CLEOE-EQEC.2019.8871596||shape="rect"]]
524 1. N. Schirmel, S. Alisauskas, T. Hülsenbusch, B. Manschwetus, C. Mohr, L. Winkelmann, U. Große-Wortmann, J. Zheng, T. Lang, and I. Hartl,
525 //Long-Term Stabilization of Temporal and Spectral Drifts of a Burst-Mode OPCPA System//,
526 in //Conference on Lasers and Electro-Optics//, OSA Technical Digest (Optical Society of America, 2019), paper STu4E.4.;
527 [[https:~~/~~/doi.org/10.1364/CLEO_SI.2019.STu4E.4>>url:https://doi.org/10.1364/CLEO_SI.2019.STu4E.4||shape="rect"]]
528
529 **b) FLASH1**
530
531 1. H. Redlin, A. Al-Shemmary, A. Azima, N. Stojanovic, F. Tavella, I. Will, S. Düsterer,
532 //The FLASH pump-probe laser system: Setup, characterization and optical beamlines//.,
533 Nucl. Instrum. Methods A **635**, 88–93 (2011);
534 [[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"]]
535 1. **(FEL-laser synchronization)**
536 S. Schulz, M. K. Czwalinna, M. Felber, P. Prędki, S. Schefer, H. Schlarb, U. Wegner,
537 //Femtosecond-precision synchronization of the pump-probe optical laser for user experiments at FLASH//,
538 Proc. SPIE **8778**, Advances in X-ray Free-Electron Lasers II: Instrumentation, 87780R (May 3, 2013);
539 [[http:~~/~~/dx.doi.org/10.1117/12.2021572>>url:http://dx.doi.org/10.1117/12.2021572||shape="rect"]]
540
541 **c) pump-probe data analysis**
542
543 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,
544 //Jitter-Correction for IR/UV-XUV Pump-Probe Experiments at the FLASH Free-Electron Laser//,
545 New J. Phys. **19**, 043009 (2017),
546 [[https:~~/~~/doi.org/10.1088/1367-2630/aa652d>>url:https://doi.org/10.1088/1367-2630/aa652d||shape="rect"]]
547
548 **d) HHG laser source at FL26/ReMi**
549
550 1. (((
551 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,
552 //Synchronized beamline at FLASH2 based on high-order harmonic generation for two-color dynamics studies//,
553 Rev. Sci. Instrum. **92**, 123004 (2021);
554 [[https:~~/~~/doi.org/10.1063/5.0063225>>url:https://doi.org/10.1063/5.0063225||shape="rect"]]
555 )))
556 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
557 Trost, Severin Meister, Patrizia Schoch, Rolf Treusch, Robert Moshammer, Ingmar Hartl, Uwe Morgner, and Milutin Kovacev,
558 //A synchronized VUV light source based on high-order harmonic generation at FLASH//,
559 Sci. Rep. **10**, 6867 (2020);
560 (% 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"]]
561
562 = Data analysis =
563
564 **Sorting data**
565
566 1. Dennis Mayer, Fabiano Lever and Markus Gühr,  ** (sorting GMD, BAM and Spectrum)**
567 (% style="letter-spacing:0.0px" %)//Data analysis procedures for time-resolved x-ray photoelectron spectroscopy at a SASE free-electron-laser,//(%%)
568 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;"]]
569 1. (((
570 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)**(%%)
571 (% style="letter-spacing:0.0px" %)//An open-source, end-to-end workflow for multidimensional photoemission spectroscopy//,
572 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;"]]
573 )))
574 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)**
575 //Jitter-Correction for IR/UV-XUV Pump-Probe Experiments at the FLASH Free-Electron Laser//,
576 New J. Phys. **19**, 043009 (2017),
577 [[https:~~/~~/doi.org/10.1088/1367-2630/aa652d>>url:https://doi.org/10.1088/1367-2630/aa652d||shape="rect"]]
578
579 ----
580
581 = Other references =
582
583 **Damage Tresholds of optical components, start at TTF1**
584
585 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,
586 Conductors, semiconductors, and insulators irradiated with shortwavelength free-electron laser,
587 J. Appl. Phys. **101**, 043107 (2007);
588 [[http:~~/~~/dx.doi.org/10.1063/1.2434989>>url:http://dx.doi.org/10.1063/1.2434989||shape="rect"]]
589
590 **Study of fluorescent crystals for beam profile imaging, start at TTF1**
591
592 1. Kirm, A. Andrejczuk, J.Krzywinski, and R. Sobierajski,
593 //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//,
594 phys. stat. sol. (c) **2**, 649-652 (2005);
595 [[__http:~~/~~/dx.doi.org/10.1002/pssc.200460255__>>url:http://dx.doi.org/10.1002/pssc.200460255||shape="rect"]]
596
597 **Study of carbon coatings for FEL mirrors,  start at TTF1**
598
599 1. Steeg, L. Juha, J. Feldhaus, S. Jacobi, R. Sobierajski, C.Michaelsen, A. Andrejczuk, and J. Krzywinski,
600 //Total reflection amorphous carbon mirrors for vacuum ultraviolet free electron lasers//,
601 Appl. Phys. Lett. **84**, 657-659 (2004);
602 [[__http:~~/~~/dx.doi.org/10.1063/1.1645320__>>url:http://dx.doi.org/10.1063/1.1645320||shape="rect"]]