Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Fallahi, Arya"'
Publikováno v:
New J. Phys. 23 (2021) 083033
Compact coherent x-ray sources have been the focus of extensive research efforts over the past decades. As a result, several novel schemes like optical and nano-undulators for generating x-ray emissions in "table-top" setups are proposed, developed,
Externí odkaz:
http://arxiv.org/abs/2104.11586
Autor:
Fallahi, Arya
Free Electron Lasers (FELs) are a solution for providing intense, coherent and bright radiation in the hard X-ray regime. Due to the low wall-plug efficiency of FEL facilities, it is crucial and additionally very useful to develop complete and accura
Externí odkaz:
http://arxiv.org/abs/2009.13645
Autor:
Fallahi, Arya
The concepts in this thesis comprise three groups focusing on: (1) fast electron sources, (2) THz injectors, and (3) THz linacs. First, the feasibility of ultrafast, high-yield electron emitters based on nanostructured cathodes is demonstrated. Benef
Externí odkaz:
http://arxiv.org/abs/1906.06186
We describe a robust system for laser-driven narrowband terahertz generation with high conversion efficiency in periodically poled Lithium Niobate (PPLN). In the multi-stage terahertz generation system, the pump pulse is recycled after each PPLN stag
Externí odkaz:
http://arxiv.org/abs/1809.01892
Autor:
Karimi, Fariba, Neufeld, Esra, Fallahi, Arya, Boraschi, Andrea, Zwanenburg, Jaco J.M., Spiegelberg, Andreas, Kurtcuoglu, Vartan, Kuster, Niels
Publikováno v:
In NeuroImage: Clinical 2023 37
Autor:
Zhang, Dongfang, Fallahi, Arya, Hemmer, Michael, Wu, Xiaojun, Fakhari, Moein, Hua, Yi, Cankaya, Huseyin, Calendron, Anne-Laure, Zapata, Luis E., Matlis, Nicholas H., Kärtner, Franz X.
Acceleration and manipulation of ultrashort electron bunches are the basis behind electron and X-ray devices used for ultrafast, atomic-scale imaging and spectroscopy. Using laser-generated THz drivers enables intrinsic synchronization as well as dra
Externí odkaz:
http://arxiv.org/abs/1711.03024
Autor:
Ye, Hong, Trippel, Sebastian, Di Fraia, Michele, Fallahi, Arya, Mücke, Oliver D., Kärtner, Franz X., Küpper, Jochen
Publikováno v:
Phys. Rev. Applied 9, 044018 (2018)
A velocity-map-imaging spectrometer is demonstrated to characterize the normalized transverse emittance of photoemitted electron bunches. The two-dimensional (2D) projected velocity distribution images of photoemitted electrons are recorded by the de
Externí odkaz:
http://arxiv.org/abs/1707.06472
Publikováno v:
Phys. Rev. B 95, 201401 (2017)
We explore the far-field scattering properties of anisotropic 2D materials in ribbon array configuration. Our study reveals the plasmon-enhanced linear birefringence in these ultrathin metasurfaces, where linearly polarized incident light can be scat
Externí odkaz:
http://arxiv.org/abs/1701.06980
Free Electron Lasers (FELs) are a solution for providing intense, coherent and bright radiation in the hard X-ray regime. Due to the low wall-plug efficiency of FEL facilities, it is crucial and additionally very useful to develop complete and accura
Externí odkaz:
http://arxiv.org/abs/1612.03310
Autor:
Wong, Liang Jie, Hong, Kyung-Han, Carbajo, Sergio, Fallahi, Arya, Soljačić, Marin, Joannopoulos, John D., Kärtner, Franz X., Kaminer, Ido
Linear acceleration in free space is a topic that has been studied for over 20 years, and its ability to eventually produce high-quality, high energy multi-particle bunches has remained a subject of great interest. Arguments can certainly be made tha
Externí odkaz:
http://arxiv.org/abs/1611.05697