Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Nagele, Stefan"'
Autor:
Sato, Takeshi, Ishikawa, Kenichi L., Brezinova, Iva, Lackner, Fabian, Nagele, Stefan, Burgdorfer, Joachim
Publikováno v:
Phys. Rev. A 94, 023405 (2016)
We present the numerical implementation of the time-dependent complete-active-space self-consistent-field (TD-CASSCF) method [Phys. Rev. A, 88, 023402 (2013)] for atoms driven by a strong linearly polarized laser pulse. The present implementation tre
Externí odkaz:
http://arxiv.org/abs/1605.00703
Autor:
Larimian, Seyedreza, Erattupuzha, Sonia, Lemell, Christoph, Yoshida, Shuhei, Nagele, Stefan, Maurer, Raffael, Baltuška, Andrius, Burgdörfer, Joachim, Kitzler, Markus, Xie, Xinhua
Publikováno v:
Phys. Rev. A 94, 033401 (2016)
We report on the measurement of electron emission after the interaction of strong laser pulses with atoms and molecules. These electrons originate from high-lying Rydberg states with quantum numbers up to $n \lesssim 120$ formed by frustrated field i
Externí odkaz:
http://arxiv.org/abs/1604.03679
Autor:
Wachter, Georg, Nagele, Stefan, Sato, Shunsuke A., Pazourek, Renate, Wais, Michael, Lemell, Christoph, Tong, Xiao-Min, Yabana, Kazuhiro, Burgdörfer, Joachim
Publikováno v:
Phys. Rev. A 92, 061403 (2015)
We propose a protocol to probe the ultrafast evolution and dephasing of coherent electronic excitation in molecules in the time domain by the intrinsic streaking field generated by the molecule itself. Coherent electronic motion in the endohedral ful
Externí odkaz:
http://arxiv.org/abs/1505.05857
Autor:
Zielinski, Alejandro, Majety, Vinay Pramod, Nagele, Stefan, Pazourek, Renate, Burgdörfer, Joachim, Scrinzi, Armin
Publikováno v:
Phys. Rev. Lett. 115, 243001 (2015)
We show that external control of Fano resonances in general leads to complex Fano $q$-parameters. Fano line shapes of photo-electron and transient absorption spectra in presence of an infrared control field are investigated. Computed transient absorp
Externí odkaz:
http://arxiv.org/abs/1405.4279
Publikováno v:
J. Phys. B 48, 061002 (2015)
We show that time ordering underlying time-dependent quantum dynamics is a physical observable accessible by attosecond streaking. We demonstrate the extraction of time ordering for the prototypical case of time-resolved two-photon double ionization
Externí odkaz:
http://arxiv.org/abs/1405.1779
Publikováno v:
J. Phys.: Conf. Ser. 488, 012004 (2014)
We theoretically study time-resolved photoemission in atoms as probed by attosecond streaking. We review recent advances in the study of the photoelectric effect in the time domain and show that the experimentally accessible time shifts can be decomp
Externí odkaz:
http://arxiv.org/abs/1401.6328
Autor:
Ning, Qi-Cheng, Peng, Liang-You, Song, Shu-Na, Jiang, Wei-Chao, Nagele, Stefan, Pazourek, Renate, Burgdörfer, Joachim, Gong, Qihuang
Publikováno v:
Phys. Rev. A 90, 013423 (2014)
We present the first numerical simulation of the time delay in the photoionization of the simplest diatomic molecule H$_2^+$ as observed by attosecond streaking. We show that the strong variation of the Eisenbud-Wigner-Smith time delay as a function
Externí odkaz:
http://arxiv.org/abs/1401.6233
Autor:
Feist, Johannes, Zatsarinny, Oleg, Nagele, Stefan, Pazourek, Renate, Burgdörfer, Joachim, Guan, Xiaoxu, Bartschat, Klaus, Schneider, Barry I.
Publikováno v:
Phys. Rev. A 89, 033417 (2014)
We revisit the time-resolved photoemission in neon atoms as probed by attosecond streaking. We calculate streaking time shifts for the emission of 2p and 2s electrons and compare the relative delay as measured in a recent experiment by Schultze et al
Externí odkaz:
http://arxiv.org/abs/1401.2878
Autor:
Ye, Shuzhen, Zhang, Xinyue, Killian, Thomas C., Dunning, F. Barry, Hiller, Moritz, Yoshida, Shuhei, Nagele, Stefan, Burgdörfer, Joachim
Publikováno v:
Phys. Rev. A 88, 043430 (2013)
The production of very-high-$n$, $n\sim300$-500, strontium Rydberg atoms is explored using a crossed laser-atom beam geometry. $n$$^{1}$S$_{0}$ and $n$$^{1}$D$_{2}$ states are created by two-photon excitation via the 5s5p $^{1}$P$_{1}$ intermediate s
Externí odkaz:
http://arxiv.org/abs/1309.7359
Photoionization of helium by attosecond pulses: extraction of spectra from correlated wave functions
Autor:
Argenti, Luca, Pazourek, Renate, Feist, Johannes, Nagele, Stefan, Liertzer, Matthias, Persson, Emil, Burgdörfer, Joachim, Lindroth, Eva
Publikováno v:
Phys. Rev. A 87, 053405 (2013)
We investigate the photoionization spectrum of helium by attosecond XUV pulses both in the spectral region of doubly excited resonances as well as above the double ionization threshold. In order to probe for convergence, we compare three techniques t
Externí odkaz:
http://arxiv.org/abs/1210.2187