Zobrazeno 1 - 10
of 2 283
pro vyhledávání: '"Berrah A"'
Autor:
Borne, Kurtis, ONeal, Jordan T, Wang, Jun, Isele, Erk, Obaid, Razib, Berrah, Nora, Cheng, Xinxin, Bucksbaum, Philip H, James, Justin, Kamalov, Andri, Larsen, Kirk A, Li, Xiang, Lin, Ming-Fu, Liu, Yusong, Marinelli, Agostino, Summers, Adam, Thierstein, Emily, Wolf, Thomas, Rolles, Daniel, Walter, Peter, Cryan, James P, Driver, Taran
We describe the design and performance of a magnetic bottle electron spectrometer~(MBES) for high-energy electron spectroscopy. Our design features a ${\sim2}$~m long electron drift tube and electrostatic retardation lens, achieving sub-electronvolt
Externí odkaz:
http://arxiv.org/abs/2406.13083
Autor:
Watson, Kevin, Saule, Tobias, Ivanov, Maksym, Schmidt, Bruno E., Rodnova, Zhanna, Gibson, George, Berrah, Nora, Trallero, Carlos
Scaling spectral broadening to higher pulse energies and average powers, respectively, is a critical step in ultrafast science, especially for narrowband Yb based solid state lasers which become the new state of the art. Despite their high nonlineari
Externí odkaz:
http://arxiv.org/abs/2405.02518
Autor:
Driver, Taran, Mountney, Miles, Wang, Jun, Ortmann, Lisa, Al-Haddad, Andre, Berrah, Nora, Bostedt, Christoph, Champenois, Elio G., DiMauro, Louis F., Duris, Joseph, Garratt, Douglas, Glownia, James M., Guo, Zhaoheng, Haxton, Daniel, Isele, Erik, Ivanov, Igor, Ji, Jiabao, Kamalov, Andrei, Li, Siqi, Lin, Ming-Fu, Marangos, Jon P., Obaid, Razib, O'Neal, Jordan T., Rosenberger, Philipp, Shivaram, Niranjan H., Wang, Anna L., Walter, Peter, Wolf, Thomas J. A., Wörner, Hans Jakob, Zhang, Zhen, Bucksbaum, Philip H., Kling, Matthias F., Landsman, Alexandra S., Lucchese, Robert R., Emmanouilidou, Agapi, Marinelli, Agostino, Cryan, James P.
The photoelectric effect is not truly instantaneous, but exhibits attosecond delays that can reveal complex molecular dynamics. Sub-femtosecond duration light pulses provide the requisite tools to resolve the dynamics of photoionization. Accordingly,
Externí odkaz:
http://arxiv.org/abs/2402.12764
Autor:
Guo, Zhaoheng, Driver, Taran, Beauvarlet, Sandra, Cesar, David, Duris, Joseph, Franz, Paris L., Alexander, Oliver, Bohler, Dorian, Bostedt, Christoph, Averbukh, Vitali, Cheng, Xinxin, DiMauro, Louis F., Doumy, Gilles, Forbes, Ruaridh, Gessner, Oliver, Glownia, James M., Isele, Erik, Kamalov, Andrei, Larsen, Kirk A., Li, Siqi, Li, Xiang, Lin, Ming-Fu, McCracken, Gregory A., Obaid, Razib, ONeal, Jordan T., Robles, River R., Rolles, Daniel, Ruberti, Marco, Rudenko, Artem, Slaughter, Daniel S., Sudar, Nicholas S., Thierstein, Emily, Tuthill, Daniel, Ueda, Kiyoshi, Wang, Enliang, Wang, Anna L., Wang, Jun, Weber, Thorsten, Wolf, Thomas J. A., Young, Linda, Zhang, Zhen, Bucksbaum, Philip H., Marangos, Jon P., Kling, Matthias F., Huang, Zhirong, Walter, Peter, Inhester, Ludger, Berrah, Nora, Cryan, James P., Marinelli, Agostino
Pump-probe experiments with sub-femtosecond resolution are the key to understanding electronic dynamics in quantum systems. Here we demonstrate the generation and control of sub-femtosecond pulse pairs from a two-colour X-ray free-electron laser (XFE
Externí odkaz:
http://arxiv.org/abs/2401.15250
Autor:
Debadarshini Mishra, Aaron C. LaForge, Lauren M. Gorman, Sergio Díaz-Tendero, Fernando Martín, Nora Berrah
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Roaming is an unconventional type of molecular reaction where fragments, instead of immediately dissociating, remain weakly bound due to long-range Coulombic interactions. Due to its prevalence and ability to form new molecular compounds, ro
Externí odkaz:
https://doaj.org/article/a7936b329f0a414b85823f2561f8d881
Autor:
Mishra, Debadarshini, LaForge, Aaron C., Gorman, Lauren M., Díaz-Tendero, Sergio, Martín, Fernando, Berrah, Nora
Roaming has been proposed as a possible mechanism contributing to molecular dissociation in which the fragments can move around one another at relatively large intermolecular distances before separating entirely. While roaming, there is sufficient ti
Externí odkaz:
http://arxiv.org/abs/2303.04916
Autor:
LaForge, AC, Benediktovitch, A, Sukharnikov, V, Krušič, Š, Žitnik, M, Debatin, M, Falcone, RW, Asmussen, JD, Mudrich, M, Michiels, R, Stienkemeier, F, Badano, L, Callegari, C, Di Fraia, M, Ferianis, M, Giannessi, L, Plekan, O, Prince, KC, Spezzani, C, Rohringer, N, Berrah, N
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 53 244012 (2020)
We report on the observation of time-resolved quantum beats in the helium fluorescence from the transition 1s3p -> 1s2s, where the initial state is excited by XUV free-electron laser radiation. The quantum beats originate from the Zeeman splitting of
Externí odkaz:
http://arxiv.org/abs/2112.08508
Autor:
LaForge, Aaron C., Son, Sang-Kil, Mishra, Debadarshini, Ilchen, Markus, Duncanson, Stephen, Eronen, Eemeli, Kukk, Edwin, Wirok-Stoletow, Stanislaw, Kolbasova, Daria, Walter, Peter, Boll, Rebecca, De Fanis, Alberto, Meyer, Michael, Ovcharenko, Yevheniy, Rivas, Daniel E., Schmidt, Philipp, Usenko, Sergey, Santra, Robin, Berrah, Nora
Here, we report on the nonlinear ionization of argon atoms in the short wavelength regime using ultraintense x rays from the European XFEL. After sequential multiphoton ionization, high charge states are obtained. For photon energies that are insuffi
Externí odkaz:
http://arxiv.org/abs/2110.08145
Publikováno v:
In Solar Energy June 2024 275
Autor:
Li, Siqi, Driver, Taran, Rosenberger, Philipp, Champenois, Elio G., Duris, Joseph, Al-Haddad, Andre, Averbukh, Vitali, Barnard, Jonathan C. T., Berrah, Nora, Bostedt, Christoph, Bucksbaum, Philip H., Coffee, Ryan, DiMauro, Louis F., Fang, Li, Garratt, Douglas, Gatton, Averell, Guo, Zhaoheng, Hartmann, Gregor, Haxton, Daniel, Helml, Wolfram, Huang, Zhirong, LaForge, Aaron C., Kamalov, Andrei, Knurr, Jonas, Lin, Ming-Fu, Lutman, Alberto A., MacArthur, James P., Marangos, Jon P., Nantel, Megan, Natan, Adi, Obaid, Razib, O'Neal, Jordan T., Shivaram, Niranjan H., Schori, Aviad, Walter, Peter, Wang, Anna Li, Wolf, Thomas J. A., Zhang, Zhen, Kling, Matthias F., Marinelli, Agostino, Cryan, James P.
In quantum systems, coherent superpositions of electronic states evolve on ultrafast timescales (few femtosecond to attosecond, 1 as = 0.001 fs = 10^{-18} s), leading to a time dependent charge density. Here we exploit the first attosecond soft x-ray
Externí odkaz:
http://arxiv.org/abs/2105.08854