Allgemeines

General

 

Eine kurze Einführung in die Arbeitsgebiete der AG Khan finden Sie HIER

Please find a brief overview of the research interests of our group HERE

 

Artikel in Zeitschriften und Büchern (seit 2008)

Papers in Journals and Books (since 2008)

   

• M. A. Jebrabcik, S. Khan, and W. Helml, Steady‑state solutions of split beams in electron storage rings, Scientifc Reports 12, 18383 (2022).
• S. Khan, K. Wille, Accelerator-based photon sources, in: I. Fleck, M. Titov, C. Grupen, I. Buvat (Eds.), Handbook of Particle Detection and Imaging, Springer (2021).
  
• S. Khan, Laser-driven electron storage rings, J. Phys: Conf. Ser. 1596, 012025 (2020).

• P. Ungelenk, M. Höner, H. Huck, S. Khan, C. Mai, A. Meyer auf der Heide, C. Evain, C. Szwaj, and S. Bielawski, "Continuously tunable narrowband pulses in the THz gap from laser-modulated electron bunches in a storage ring", Phys. Rev. Accel. Beams 20, 020706 (2017).

• S. Khan, Ultrashort High-Brightness Pulses from Storage Rings, Nuclear Instruments & Methods A 865, 95 (2017).

• S. Khan, Ultrashort Pulses from Synchrotron Radiation Sources, in: E. Jaeschke, S. Khan, J. R. Schneider, J. B. Hastings (Eds.), Synchrotron Light Sources and Free-Electron Lasers, Springer (2015).

• K. Hacker, R. Molo, S. Khan, L. L. Lazzarino, C. Lechner, Th. Maltezopoulos, T. Plath, J. Rossbach, S. Ackermann, J. Bödewadt, M. Dohlus, N. Ekanayake, T. Laarmann, and H. Schlarb, Measurements and Simulations of Seeded Electron Microbunches with Collective Effects, Phys. Rev. Special Topics – Accel. Beams 18, 090704 (2015).

• S. Ackermann, A. Azima, S. Bajt, J. Bödewadt, F. Curbis, H. Dachraoui, H. Delsim-Hashemi, M. Drescher, S. Düsterer, B. Faatz, M. Felber, J. Feldhaus, E. Hass, U. Hipp, K. Honkavaara, R. Ischebeck, S. Khan, T. Laarmann, C. Lechner, Th. Maltezopoulos, V. Miltchev, M. Mittenzwey, M. Rehders, J. Rönsch-Schulenburg, J. Rossbach, H. Schlarb, S. Schreiber, L. Schroedter, M. Schulz, S. Schulz, R. Tarkeshian, M. Tischer, V. Wacker, and M. Wieland, Generation of Coherent 19- and 38-nm Radiation at a Free-Electron Laser Directly Seeded at 38 nm, Phys. Rev. Lett. 111, 114801 (2013).

• S. Khan, F. Bahnsen, S. Cramm, S. Döring, J. Grewe, M. Höner, H. Huck, M. Huck., R. Molo, L. Plucinski, A. Schick, C. M. Schneider, and P. Ungelenk, Generation of Ultrashort and Coherent Synchrotron Radiation Pulses at DELTA, Synchrotron Radiation News, 26:3, 25 (2013).

• S. Khan and K. Wille, Synchrotron Radiation and FEL Instrumentation, in: C. Grupen, I. Buvat (Eds.), Handbook of Particle Detection and Imaging, Springer (2012).

• S. Khan, M. Bakr, M. Höner, H. Huck, R. Molo, A. Nowaczyk, A. Schick, Peter Ungelenk, and Maryam Zeinalzadeh, Coherent Harmonic Generation at DELTA: A New Facility for Ultrashort Pulses in the VUV and THz Regime, Synchrotron Radiation News, 24:5, 18 (2011).

• G. Angelova, V. Ziemann, A. Meseck, P. Salén, P. van der Meulen, M. Hamberg, M. Larsson, J. Bödewadt, S. Khan, A. Winter, H. Schlarb, F. Löhl, E. Saldin, E. Schneidmiller, and M. Yurkov, Observation of Two-Dimensional Longitudinal-Transverse Correlations in an Electron Beam by Laser-Electron Interactions, Phys. Rev. Special Topics – Accel. Beams 11, 070702 (2008).

• S. Khan, Tutorial Review: Free-Electron Lasers, Journal of Modern Optics 55, 3469 (2008).

 

Konferenzberichte (seit 2008)

Conference Reports (since 2008)

 

• S. Khan, G. Perosa, F. Sottocorona, E. Allaria, A. Brynes, G. Penco, P. R. Ribič, S. Spampinati, C. Spezzani, M. Trovò, L. Giannessi, G. De Ninno, E. Ferrari, E. Schneidmiller, Evolution of microbunching in drift sections, FEL 2022, Trieste, MOP01.
• B. Büsing et al., Preparatory experimental investigations in view of EEHG at the DELTA storage ring, FEL 2022, Trieste, TUP71.
• A. Radha Krishnan et al., Spectro-temporal properties of coherently emitted ultrashort radiation pulses at DELTA, FEL 2022, Trieste, TUP70.
• A. Radha Krishnan el al., Investigation of the spectro-temporal properties of CHG radiation at DELTA, IPAC 2022, Bangkok, 1423.
  
• B. Büsing et al., Progress towards EEHG seeding at the DELTA storage ring, IPAC 2022, Bangkok, 1420.
• B. Büsing et al., Optics studies on the operation of a new wiggler and bunch shortening at the DELTA storage ring, IPAC 2021, Campinas, 2772.
  
• A. Held et al., Status of the short-pulse source at DELTA, IPAC 2021, Campinas, 1518.
• C. Mai et al., Towards arbitrary pulse shapes in the terahertz domain, IPAC 2021, Campinas, 3977.
  

• A. Meyer auf der Heide et al., Harmonic Off-Axis Seeding at the DELTA Short-Pulse Source, FEL 2019, Hamburg, 246.
  

• C. Lechner, S. Ackermann, R. W. Assmann, B. Faatz, V. Grattoni, I. Hartl, S. D. Hartwell, R. Ivanov, M. M. Kazemi, T. Laarmann, T. Lang, G. Paraskaki, A. Przystawik, J. Zheng, S. Khan, A. Azima, H. Biss, M. Drescher, W. Hillert, V. Miltchev, J. Rossbach, Seeding R&D at sFLASH, FEL 2019, Hamburg, 230.
  

• C. Mai et al., Pulse Shaping Methods for Laser-Induced Generation of THz Radiation at the DELTA Storage Ring, IPAC 2019, Melbourne, 1453.

• A. Meyer auf der Heide et al., The DELTA Short-Pulse Source: Upgrade Plans from CHG to EEHG, IPAC 2019, Melbourne, 1457.

• D: Krieg et al., Design Steps Towards an Electron Source for Ultrafast Electron Diffraction at DELTA, IPAC 2019, Melbourne, 1968.

• S. Khan, Laser Seeding of Electron Bunches for Future Ring-Based Light Sources, FLS 2018, Shanghai, 177.

• B. Riemann et al., Resistive-Wall Impedance of Insertions for FCC-hh, IPAC 2018, Vancouver, 378.

• V. Grattoni et al., An Option to Generate Seeded FEL Radiation for FLASH1, IPAC 2018, Vancouver, 1448.

• V. Grattoni et al., Control of FEL Radiation Properties by Tailoring the Seed Pulses, IPAC 2018, Vancouver, 1444.

• C. Lechner et al., Status of the sFLASH Experiment, IPAC 2018, Vancouver, 1471.

• D. Krieg et al., First Conceptual Design Studies of an Electron Source for Ultrafast Electron Diffraction at DELTA, IPAC 2018, Vancouver, 4530.

• C. Mai et al., A Tunable Narrowband Source in the Sub-THz and THz Range at DELTA, IPAC 2018, Vancouver, 4534.

• A. Meyer auf der Heide et al., Measurement of the Laser-Induced Energy Modulation Amplitude at the Short-Pulse Facility at DELTA, IPAC 2018, Vancouver, 4538.

• B. Riemann et al., Validating the COBEA Algorithm at the DELTA Storage Ring, IPAC 2018, Vancouver, 4851.

• V. Grattoni et al., Status of Seeding Development at sFLASH, FEL 2017, Santa Fe, 136.

• T. Plath et al., Extraction of the Longitudinal Profile of the Transverse Emittance From Single-Shot RF Deflector Measurements at sFLASH, FEL 2017, Santa Fe, 98.

• S. Khan et al., Seeding of Electron Bunches in Storage Rings, FEL 2017, Santa Fe, 94.

• C. Lechner et al., Concept for a Seeded FEL at FLASH2, FEL 2017, Santa Fe, 34.

• C. Lechner et al., Concept for a Seeded FEL at FLASH2, IPAC 2017, Copenhagen, 2607.

• J. Bödewadt et al., Experience in Operating sFLASH with High-Gain Harmonic Generation, IPAC 2017, Copenhagen, 2596.

• J. Bödewadt et al., Parameter Optimization for Operation of sFLASH with Echo-Enabled Harmonic Generation, IPAC 2017, 2592.

• A. Meyer auf der Heide et al., Progress Towards an EEHG-Based Short-Pulse Source at DELTA, IPAC 2017, Copenhagen, 2582.

• S. Khan et al., Pilot Experiments and New Developments at the DELTA Short-Pulse Facility, IPAC 2017, Copenhagen, 2578.

• B. Riemann et al., COBEA - Optical Parameters From Response Matrices without Knowledge of Magnet Strengths, IPAC 2017, Copenhagen, 676.

• W. Bartmann et al., Beam Dynamics Issues in the FCC, HB 2016, Malmö, 373.

• S. Khan et al., Spectral Studies of Ultrashort and Coherent Radiation Pulses at the DELTA Storage Ring, IPAC 2016, Busan, 2851.

• M. A. Jebramcik et al., Coherent Harmonic Generation in the Presence of Synchronized RF Phase Modulation at DELTA, IPAC 2016, Busan, 2847.

• C. Mai et al., Time-resolved Spectral Observation of Coherent THz Pulses at DELTA, IPAC 2016, Busan, 105.
  

• K. E. Hacker et al., Measurements and Simulation of Seeded Microbunches with Collective Effects, FEL 2015, Daejeon, 650.

• K. E. Hacker et al., First Lasing of an HGHG-Seeded FEL at FLASH, FEL 2015, Daejeon, 646.

• C. Lechner et al., Suppression of FEL Lasing by a Seeded Microbunching Instability, FEL 2015, Daejeon, 289.

• S. Hilbrich et al., Plans for an EEHG-based Short-Pulse Facility at the DELTA Storage Ring, FEL 2015, Daejeon, TUP012.

• S. Khan et al., Characterization and Optimization of Ultrashort Coherent VUV Pulses at the DELTA Storage Ring, IPAC 2015, Richmond, 1452.

• S. Khan, A New Method to Generate Ultrashort and Coherent Pulses of Short-Wavelength Synchrotron Radiation, IPAC 2015, Richmond, 1448.

• J. Bödewadt et al., Recent Results from FEL Seeding at FLASH, IPAC 2015, Richmond, 1366.

• C. Mai et al., Observation of Coherent Pulses in the Sub-THz Range at DELTA, IPAC 2015, Richmond, 823.

• M. Sommer et al., Coupled-Bunch Instability Suppression Using RF Phase Modulation at the DELTA Storage Ring, IPAC 2015, Richmond, 179.

• S. Hilbrich et al., Upgrade Plans for the Short-Pulse Facility at DELTA, FEL 2014, Basel, 255.

• C. Lechner et al., Measurements of the Timing Stability at the FLASH1 Seeding Experiment, FEL 2014, Basel, 913.

• A. Meyer auf der Heide et al., Coherent Harmonic Generation at the DELTA Storage Ring: Towards User Operation, FEL 2014, Basel, 556.

• S. Khan, Enhancing Coherent Harmonic Generation Using Tilted Laser Wavefronts, FEL 2014, Basel, 248.

• C. Lechner et al., Demonstration of SASE Suppression Through a Seeded Microbunching Instability, FEL 2014, Basel, 177.

• M. Höner et al., Bunch-by-Bunch Feedback Systems at the DELTA Storage Ring Used for Beam Diagnostics, IBIC 2014, Monterey, 703.

• S. Khan et al., Diagnostics of and with Laser-Induced Energy Modulation at the DELTA Storage Ring, IBIC 2014, Monterey, 202.

• M. Höner et al., Investigation of Beam Instabilities at DELTA Using Bunch-by-Bunch Feedback Systems, IPAC 2014, Dresden, 3486.

• P. Ungelenk et al., Studies of Ultrashort THz Pulses at DELTA, IPAC 2014, Dresden, 1936.

• M. Huck et al., Ultrashort and Coherent Radiation for Pump-Probe Experiments at the DELTA Storage Ring, IPAC 2014, Dresden, 1848.

• M. A. Jebramcik et al., Study of the Beam Lifetime at the Synchrotron Light Source DELTA, IPAC 2014, Dresden, 222.

• A. Schick et al., Status Report of the Short-Pulse Facility at the DELTA Storage Ring, FEL 2013, New York, 642.

• R. Molo et al., EEHG and Femtoslicing at DELTA, FEL 2013, New York, 594

• M. Huck et al., Experimental Characterization of the Coherent Harmonic Generation Source at the DELTA Storage Ring, IPAC 2013, Shanghai, 2132.

• R. Molo et al., Investigation of the Magnetic Chicane of the Short-Pulse Facility at the DELTA Storage Ring, IPAC 2013, Shanghai, 1889.

• M. Höner et al., Beam Diagnostics by Using Bunch-by-Bunch Feedback Systems at the DELTA Storage Ring, IPAC 2013, Shanghai, 485.

• P. Ungelenk et al., Temporal and Spectral Observation of Laser-Induced THz Radiation at DELTA, IPAC 2013, Shanghai, 94.

• H. Huck et al., Status of the DELTA Short-Pulse Facility, FEL 2012, Nara, 401.

• K. Hacker et al., Optical Replica Synthesizer to be Recommissioned with 270 nm Seed at FLASH, FEL 2012, Nara, 261.

• K. Hacker et al., Progress Towards HGHG and EEHG Seeding at FLASH, FEL 2012, Nara, 257.

• C. Lechner et al., First Direct Seeding at 38 nm, FEL 2012, Nara, 197.

• A. Schick et al., Recent results from the Short-Pulse Facility at the DELTA Storage Ring, IPAC 2012, New Orleans, 1617.

• M. Höner et al., Bunch-by-Bunch Feedback Systems at the DELTA Storage Ring, IPAC 2012, New Orleans, 807.

• P. Ungelenk et al, Recent Developments at the DELTA THz Beamline, IPAC 2012, New Orleans, 768.

• K. E. Hacker et al., Echo Seeding Experiment at FLASH, FEL 2011, Shanghai, 279.

• R. Molo et al., Conceptual Layout of a New Short-pulse Radiation Source at DELTA Based on EEHG, FEL 2011, Shanghai, 219.

• H. Huck et al., Coherent Harmonic Generation at the DELTA Storage Ring, FEL 2011, Shanghai, 5.

• R. Molo et al., Echo-enabled Harmonic Generation at DELTA, IPAC 2011, San Sebastian, 3074.

• M. Zeinalzadeh et al., Temporal and Spatial Alignment of Electron Bunches and Ultrashort Laser Pulses for the CHG Experiment at DELTA, IPAC 2011, San Sebastian, 2945.

• A. Schick et al., Ultrashort VUV and THz Pulse Generation at the DELTA Storage Ring, IPAC 2011, San Sebastian, 2942.

• M. Höner et al., A dedicated THz Beamline at DELTA, IPAC 2011, San Sebastian, 2939.

• V. Miltchev et al., sFLASH – Present Status and Commissioning Results, IPAC 2011, San Sebastian, 923.

• J. Bödewadt et al., sFLASH – First Results of Direct Seeding at FLASH, FEL 2010, Malmö, 330.

• H. Huck et al., Past and Future of the DELTA Free-Electron Laser, FEL 2010, Malmö, 310.

• H. Delsim-Hashemi et al., Status of sFLASH, the Seeding Experiment at FLASH, IPAC 2010, Kyoto, 2161.

• S. Khan et al., Studies and Control of Coupled-bunch Instabilities at DELTA, IPAC 2010, Kyoto, 2755.

• P. Hartmann et al., Fast Orbit Feedback for DELTA and FAIR, IPAC 2010, Kyoto, 2752.

• J. Bödewadt et al., First Results of Direct Seeding at FLASH, LINAC 2010, Tsukuba, 419.

• F. Curbis et al., Photon Diagnostics for the Seeding Experiment at FLASH, FEL 2009, Liverpool, 754.

• P. Salén et al., Results from the Optical Replica Synthesizer at FLASH, FEL 2009, Liverpool, 739.

• V. Miltchev et al., Technical Design of the XUV Seeding Experiment at FLASH, FEL 2009, Liverpool, 503.

• V. G. Ziemann et al., Recent Results from the Optical Replica Synthesizer Experiment in FLASH, DIPAC 2009, Basel, 430.

• P. Towalski et al., Implementation of an FPGA-based Local Fast Orbit Feedback at the DELTA Storage Ring, DIPAC 2009, Basel, 74.

• J. Bödewadt et al., Status of the XUV Seeding Experiment at FLASH, PAC 2009, Vancouver, 1252.

• S. Khan, Future Plans for DELTA, PAC 2009, Vancouver, 1144.

• S. Khan et al., Results from the Optical Replica Experiment at FLASH, FEL 2008, Gyeongju, 497.

• A. Azima et al., sFLASH: An Experiment for Seeding VUV Radiation at FLASH, FEL 2008, Gyeongju, 405.

• A. Azima et al., Tolerance Studies on the High Harmonic Laser Seeding at FLASH, FEL 2008, Gyeongju, 235.

• G. Angelova et al., Results from the Optical Replica Experiments at FLASH, EPAC 2008, Genova, 1332.

• T. Quast et al., Femtoslicing at BESSY – Detecting more Photons, EPAC 2008, Genova, 172.

• A. Azima et al., Experimental Layout of 30 nm High Harmonic Seeding at FLASH, EPAC 2008, Genova, 127.

• S. Khan, Longitudinal Diagnostics of Short Bunches at FLASH, Advanced Accelerator Concepts 1086 (2008), Santa Cruz, 631.

 

     DIPAC = Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators

     EPAC = European Particle Accelerator Conference

     FEL = Free-Electron Laser Conference

     FLS = Workshop on Future Light Sources

     HB = Beam Dynamics Workshop on High-Intensity, High-Brightness and High Power Hadron Beams

     IBIC = International Beam Instrumentation Conference

     IPAC = International Particle Accelerator Conference

     LINAC = Linear Accelerator Conference

     PAC = Particle Accelerator Conference

 

Diplom-, Master- und Bachelorarbeiten

Diploma, Master und Bachelor Theses

 

• Maximilian Schmutzler (2018): Dispersive Magnetstrukturen für die Erzeugung ultrakurzer Strahlungspulse bei DELTA

• Mateusz Suski (2017): Diagnose ultrakurzer Strahlungspulse bei DELTA

• Benedikt Büsing (2017): Teilchenoptische Auslegung und Entwicklung von Dipolkammern für die EEHG-basierte Kurzpulsquelle bei DELTA

• Dennis Zimmermann (2016): Aufbau eines Magnetmessstandes zur Feldvermessung von Undulatoren bei DELTA

• Raffael Niemczyk (2016): Konstruktion eines Aufbaus für elektrooptische Fernfeld-Messungen an der Terahertz-Strahllinie bei DELTA

• Arne Meyer auf der Heide (2016): Simulation and Commissioning of a Multi-Wavelength Telescope for the Short-Pulse Facility at DELTA

• Nils Lockmann (2016): Laser Frequency Conversion for the Short-Pulse Source at DELTA

• Marc André Jebramcik (2016): RF Phase Modulation in the Context of Coherent Harmonic Generation at the DELTA Storage Ring

• Fabian Götz (2016): Verbesserung der Diagnosemöglichkeiten an der Kurzpulsquelle bei DELTA

• Fin Hendrik Bahnsen (2016): Auslegung von Vakuumkomponenten für eine EEHG-basierte Kurzpulsquelle bei DELTA

• Carsten Mai (2015): Design and Construction of a Polarizing Interferometer for the DELTA Terahertz Beamline

• Svenja Hilbrich (2015): Studies of the DELTA Lattice in View of a Future Short-Pulse Facility Based on Echo-Enabled Harmonic Generation

• Robert Molo (2011): Investigation of Short-Pulse Radiation Sources at DELTA Based on Coherent Harmonic Generation and Echo-Enabled Harmonic Generation

• Peter Ungelenk (2011): A New THz Beamline at DELTA - Tracking Simulations, Mechanical Design, Assembly, and First Measurements

• Markus Höner (2011): Optical Design and Construction of a Dedicated THz Beamline at DELTA and Study of Laser-Electron Interaction

• Lukas-Georg Böttger (2013): Simulation der Entstehung kohärenter Terahertzstrahlung am Speicherring DELTA

 

Aktuelle Themen finden Sie HIER

 

Dissertationen

Dissertations

 

• Robert Molo (TU Dortmund 2017): Towards Echo-Enabled Harmonic Generation at FLASH1 and DELTA

• Peter Ungelenk (TU Dortmund 2015): Generation and Detection Schemes for Laser-Induced Coherent Terahertz Radiation at the Electron Storage Ring DELTA

• Markus Höner (TU Dortmund 2015): Investigation of Transient Processes at the DELTA Electron Storage Ring Using a Digital Bunch-by-Bunch Feedback System

• Maryam Huck (TU Dortmund 2015): Characterization of VUV Pulses from the Short-Pulse Facility at DELTA and Steps towards Pump-Probe Experiments

• Jörn Bödewadt (Univ. Hamburg 2011): Transverse Beam Diagnostics for the XUV Seeding Experiment at FLASH

• Marc Hänel (Univ. Hamburg 2010): Experimental Investigations on the Influence of the Photocathode Laser Pulse Parameters on the Electron Bunch Quality in an RF - Photoelectron Source