C
C. Lupulescu
Publications - 2
Citations - 473
C. Lupulescu is an academic researcher. The author has contributed to research in topics: Femtosecond & Femtosecond pulse shaping. The author has an hindex of 2, co-authored 2 publications receiving 414 citations.
Papers
More filters
Journal ArticleDOI
Femtosecond modification of electron localization and transfer of angular momentum in nickel.
Christian Stamm,Torsten Kachel,Niko Pontius,Rolf Mitzner,T. Quast,Karsten Holldack,S. Khan,C. Lupulescu,Emad F. Aziz,M. Wietstruk,Hermann A. Dürr,Wolfgang Eberhardt +11 more
TL;DR: It is shown that an efficient novel channel for angular momentum dissipation to the lattice can be opened by femtosecond laser excitation of a ferromagnet, and for the first time, the quenching of spin angular momentum and its transfer toThe lattice with a time constant of 120+/-70 fs is determined unambiguously with X-ray magnetic circular dichroism.
Journal ArticleDOI
Ultrafast Electron and Spin Dynamics in Nickel Probed With Femtosecond X-Ray Pulses
Hermann A. Dürr,Christian Stamm,Torsten Kachel,Niko Pontius,Rolf Mitzner,T. Quast,Karsten Holldack,S. Khan,C. Lupulescu,Emad F. Aziz,M. Wietstruk,Wolfgang Eberhardt +11 more
TL;DR: In this paper, the authors presented the first X-ray absorption spectrum over an entire absorption edge using femtosecond pulses from a synchrotron-based slicing source, and they found an almost instantaneous response of the electronic system to the laser pulse, and provided a direct measurement of the quenching of magnetic moments within 120 fs.