Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Halavanau, Aliaksei"'
In a recent paper we proposed to build an x-ray laser oscillator (XLO) in the 6-10 keV range providing intense, stable, transform-limited, x-ray pulses based on population inversion driven by an x-ray pulse train generated by an x-ray free-electron l
Externí odkaz:
http://arxiv.org/abs/2310.04019
High-gain free-electron lasers (FELs) are becoming important light sources at short wavelengths such as the EUV and X-ray regimes. A particularly promising concept is the regenerative amplifier FEL (RAFEL), which can greatly increase the brightness a
Externí odkaz:
http://arxiv.org/abs/2308.05186
Autor:
Chuchurka, Stasis, Benediktovitch, Andrei, Krušič, Špela, Halavanau, Aliaksei, Rohringer, Nina
An approach to modeling the dynamics of x-ray amplified spontaneous emission and superfluorescence -- the phenomenon of collective x-ray emission initiated by intense pulses of X-ray Free Electron Lasers -- is developed based on stochastic partial di
Externí odkaz:
http://arxiv.org/abs/2303.00853
Autor:
Krzywinski, Jacek, Halavanau, Aliaksei
This paper describes how to efficiently solve time-dependent x-ray dynamic diffraction problems in distorted crystals with an FFT-based beam propagation method (FFT BPM). We show examples of using the technique to simulate the propagation of x-ray be
Externí odkaz:
http://arxiv.org/abs/2201.08500
Autor:
Zhang, Yu, Kroll, Thomas, Weninger, Clemens, Michine, Yurina, Fuller, Franklin D., Zhu, Diling, Alonso-Mori, Roberto, Sokaras, Dimosthenis, Lutman, Alberto, Halavanau, Aliaksei, Pellegrini, Claudio, Benediktovitch, Andrei, Yabashi, Makina, Inoue, Ichiro, Inubushi, Yuichi, Osaka, Taito, Yamada, Jumpei, Babu, Ganguli, Salpekar, Devashish, Sayed, Farheen N., Ajayan, Pulickel M., Kern, Jan, Yano, Junko, Yachandra, Vittal K., Yoneda, Hitoki, Rohringer, Nina, Bergmann, Uwe
Coherent nonlinear spectroscopies and imaging in the X-ray domain provide direct insight into the coupled motions of electrons and nuclei with resolution on the electronic length and time scale. The experimental realization of such techniques will st
Externí odkaz:
http://arxiv.org/abs/2110.08262
Autor:
Lobach, Ihar, Nagaitsev, Sergei, Lebedev, Valeri, Romanov, Aleksandr, Stancari, Giulio, Valishev, Alexander, Halavanau, Aliaksei, Huang, Zhirong, Kim, Kwang-Je
Publikováno v:
Phys. Rev. Accel. Beams 24, 040701 (2021)
Generally, turn-to-turn fluctuations of synchrotron radiation power in a storage ring depend on the 6D phase-space distribution of the electron bunch. This effect is related to the interference of fields radiated by different electrons. Changes in th
Externí odkaz:
http://arxiv.org/abs/2012.00965
Autor:
Lobach, Ihar, Nagaitsev, Sergei, Lebedev, Valeri, Romanov, Aleksandr, Stancari, Giulio, Valishev, Alexander, Halavanau, Aliaksei, Huang, Zhirong, Kim, Kwang-Je
Publikováno v:
Phys. Rev. Lett. 126, 134802 (2021)
Generally, turn-to-turn power fluctuations of incoherent spontaneous synchrotron radiation in a storage ring depend on the 6D phase-space distribution of the electron bunch. In some cases, if only one parameter of the distribution is unknown, this pa
Externí odkaz:
http://arxiv.org/abs/2012.00832
Publikováno v:
Phys. Rev. Lett. 125, 044801 (2020)
We describe a new method to produce intensity stable, highly coherent, narrow-band x-ray pulses in self-seeded free electron (FEL) lasers. The approach uses an ultra-short electron beam to generate a single spike FEL pulse with a wide coherent bandwi
Externí odkaz:
http://arxiv.org/abs/2004.04607
Autor:
Lobach, Ihar, Lebedev, Valeri, Nagaitsev, Sergei, Romanov, Aleksandr, Stancari, Giulio, Valishev, Alexander, Halavanau, Aliaksei, Huang, Zhirong, Kim, Kwang-Je
Publikováno v:
Phys. Rev. Accel. Beams 23, 090703 (2020)
We study turn-by-turn fluctuations in the number of spontaneously emitted photons from an undulator, installed in the Integrable Optics Test Accelerator (IOTA) electron storage ring at Fermilab. A theoretical model is presented, showing the relative
Externí odkaz:
http://arxiv.org/abs/1912.06737
Autor:
Halavanau, Aliaksei, Decker, Franz-Josef, Emma, Claudio, Sheppard, Jackson, Pellegrini, Claudio
We show the feasibility of generating X-ray pulses in the 4 to 8 keV fundamental photon energy range with 0.65 TW peak power, 15 fs pulse duration, $9\times10^{-5}$ bandwidth, using the LCLS-II copper linac and hard X-ray (HXR) undulator. Third harmo
Externí odkaz:
http://arxiv.org/abs/1812.04661