Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Amini, Kasra"'
Ultrafast electron diffraction (UED) instruments typically operate at kHz or lower repetition rates and rely on indirect detection of electrons. However, these experiments encounter limitations because they are required to use electron beams containi
Externí odkaz:
http://arxiv.org/abs/2405.00927
Publikováno v:
Annual Transactions of the Nordic Rheology Society, Vol. 30, 2022
Considering the nonlinear response of non-Newtonian fluids to the local shear exerted on the bulks of fluid, the initially quasi-uniform distribution of the particles might be subject to alteration as well, due to the unbalanced force distribution on
Externí odkaz:
http://arxiv.org/abs/2302.13050
Autor:
Amini, Kasra
Knowledge of the molecular structure is key to understanding the function of participating molecules in photo-induced chemical reactions. Visualizing the nuclear dynamics of a photochemical reaction requires an ultrafast measurement technique that ca
Externí odkaz:
http://arxiv.org/abs/2112.10029
Ultrafast diffraction imaging is a powerful tool to retrieve the geometric structure of gas-phase molecules with combined picometre spatial and attosecond temporal resolution. However, structural retrieval becomes progressively difficult with increas
Externí odkaz:
http://arxiv.org/abs/2110.06097
We report the design and implementation of multiple Tesla type micro valves in the target delivery system of a reaction microscope (ReMi) to study gas phase structural dynamics of complex polyatomic molecules, when no delivery system currently exists
Externí odkaz:
http://arxiv.org/abs/2106.12208
The interference of matter waves is one of the intriguing features of quantum mechanics that has impressed researchers and laymen since it was first suggested almost a century ago. Nowadays, attosecond science tools allow us to utilize it in order to
Externí odkaz:
http://arxiv.org/abs/2103.05686
Autor:
Belsa, Blanca, Amini, Kasra, Liu, Xinyao, Sanchez, Aurelien, Steinle, Tobias, Steinmetzer, Johannes, Le, Anh-Thu, Moshammer, Robert, Pfeifer, Thomas, Ullrich, Joachim, Moszynski, Robert, Lin, Chii-Dong, Gräfe, Stefanie, Biegert, Jens
Visualizing molecular transformations in real-time requires a structural retrieval method with {\AA}ngstr\"om spatial and femtosecond temporal atomic resolution. Imaging of hydrogen-containing molecules additionally requires an imaging method that is
Externí odkaz:
http://arxiv.org/abs/2012.15374
Autor:
Amini, Kasra, Biegert, Jens
Publikováno v:
Advances in Atomic and Molecular Physics, volume 69, Elsevier, 2020
Knowledge of molecular structure is paramount in understanding, and ultimately influencing, chemical reactivity. For nearly a century, diffractive imaging has been used to identify the structures of many biologically-relevant gas-phase molecules with
Externí odkaz:
http://arxiv.org/abs/2003.02971
Autor:
Liu, Xinyao, Amini, Kasra, Steinle, Tobias, Sanchez, Aurelien, Shaikh, Moniruzzaman, Belsa, Blanca, Steinmetzer, Johannes, Le, Anh-Thu, Moshammer, Robert, Pfeifer, Thomas, Ullrich, Joachim, Moszynski, Robert, Lin, C. D., Gräfe, Stefanie, Biegert, Jens
Observing changes in molecular structure requires atomic-scale {\AA}ngstrom and femtosecond spatio-temporal resolution. We use the Fourier transform (FT) variant of laser-induced electron diffraction (LIED), FT-LIED, to directly retrieve the molecula
Externí odkaz:
http://arxiv.org/abs/1906.06998