TY  - JOUR
AU  - Pan, Rui
AU  - Zapolnova, Ekaterina
AU  - Golz, Torsten
AU  - Krmpot, Aleksandar J.
AU  - Rabasović, Mihailo D.
AU  - Petrović, Jovana S.
AU  - Asgekar, Vivek
AU  - Faatz, Bart
AU  - Tavella, Franz
AU  - Perucchi, Andrea
AU  - Kovalev, Sergey
AU  - Green, Bertram Windisch
AU  - Geloni, Gianluca
AU  - Tanikawa, Takanori
AU  - Yurkov, Mikhail
AU  - Schneidmiller, Evgeny
AU  - Gensch, Michael
AU  - Stojanović, Nikola
PY  - 2019
UR  - http://scripts.iucr.org/cgi-bin/paper?S1600577519003412
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8197
AB  - The THz beamline at FLASH, DESY, provides both tunable (1–300 THz) narrow-bandwidth (∼10%) and broad-bandwidth intense (up to 150 uJ) THz pulses delivered in 1 MHz bursts and naturally synchronized with free-electron laser X-ray pulses. Combination of these pulses, along with the auxiliary NIR and VIS ultrashort lasers, supports a plethora of dynamic investigations in physics, material science and biology. The unique features of the FLASH THz pulses and the accelerator source, however, bring along a set of challenges in the diagnostics of their key parameters: pulse energy, spectral, temporal and spatial profiles. Here, these challenges are discussed and the pulse diagnostic tools developed at FLASH are presented. In particular, a radiometric power measurement is presented that enables the derivation of the average pulse energy within a pulse burst across the spectral range, jitter-corrected electro-optical sampling for the full spectro-temporal pulse characterization, spatial beam profiling along the beam transport line and at the sample, and a lamellar grating based Fourier transform infrared spectrometer for the on-line assessment of the average THz pulse spectra. Corresponding measurement results provide a comprehensive insight into the THz beamline capabilities.
T2  - Journal of Synchrotron Radiation
T1  - Photon diagnostics at the FLASH THz beamline
VL  - 26
IS  - 3
SP  - 700
EP  - 707
DO  - 10.1107/S1600577519003412
ER  - 

@article{
author = "Pan, Rui and Zapolnova, Ekaterina and Golz, Torsten and Krmpot, Aleksandar J. and Rabasović, Mihailo D. and Petrović, Jovana S. and Asgekar, Vivek and Faatz, Bart and Tavella, Franz and Perucchi, Andrea and Kovalev, Sergey and Green, Bertram Windisch and Geloni, Gianluca and Tanikawa, Takanori and Yurkov, Mikhail and Schneidmiller, Evgeny and Gensch, Michael and Stojanović, Nikola",
year = "2019",
abstract = "The THz beamline at FLASH, DESY, provides both tunable (1–300 THz) narrow-bandwidth (∼10%) and broad-bandwidth intense (up to 150 uJ) THz pulses delivered in 1 MHz bursts and naturally synchronized with free-electron laser X-ray pulses. Combination of these pulses, along with the auxiliary NIR and VIS ultrashort lasers, supports a plethora of dynamic investigations in physics, material science and biology. The unique features of the FLASH THz pulses and the accelerator source, however, bring along a set of challenges in the diagnostics of their key parameters: pulse energy, spectral, temporal and spatial profiles. Here, these challenges are discussed and the pulse diagnostic tools developed at FLASH are presented. In particular, a radiometric power measurement is presented that enables the derivation of the average pulse energy within a pulse burst across the spectral range, jitter-corrected electro-optical sampling for the full spectro-temporal pulse characterization, spatial beam profiling along the beam transport line and at the sample, and a lamellar grating based Fourier transform infrared spectrometer for the on-line assessment of the average THz pulse spectra. Corresponding measurement results provide a comprehensive insight into the THz beamline capabilities.",
journal = "Journal of Synchrotron Radiation",
title = "Photon diagnostics at the FLASH THz beamline",
volume = "26",
number = "3",
pages = "700-707",
doi = "10.1107/S1600577519003412"
}

Pan, R., Zapolnova, E., Golz, T., Krmpot, A. J., Rabasović, M. D., Petrović, J. S., Asgekar, V., Faatz, B., Tavella, F., Perucchi, A., Kovalev, S., Green, B. W., Geloni, G., Tanikawa, T., Yurkov, M., Schneidmiller, E., Gensch, M.,& Stojanović, N.. (2019). Photon diagnostics at the FLASH THz beamline. in Journal of Synchrotron Radiation, 26(3), 700-707.
https://doi.org/10.1107/S1600577519003412

Pan R, Zapolnova E, Golz T, Krmpot AJ, Rabasović MD, Petrović JS, Asgekar V, Faatz B, Tavella F, Perucchi A, Kovalev S, Green BW, Geloni G, Tanikawa T, Yurkov M, Schneidmiller E, Gensch M, Stojanović N. Photon diagnostics at the FLASH THz beamline. in Journal of Synchrotron Radiation. 2019;26(3):700-707.
doi:10.1107/S1600577519003412 .

Pan, Rui, Zapolnova, Ekaterina, Golz, Torsten, Krmpot, Aleksandar J., Rabasović, Mihailo D., Petrović, Jovana S., Asgekar, Vivek, Faatz, Bart, Tavella, Franz, Perucchi, Andrea, Kovalev, Sergey, Green, Bertram Windisch, Geloni, Gianluca, Tanikawa, Takanori, Yurkov, Mikhail, Schneidmiller, Evgeny, Gensch, Michael, Stojanović, Nikola, "Photon diagnostics at the FLASH THz beamline" in Journal of Synchrotron Radiation, 26, no. 3 (2019):700-707,
https://doi.org/10.1107/S1600577519003412 . .