Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Skantzakis, E"'
Autor:
Orfanos, I., Skantzakis, E., Nayak, A., Dumergue, M., Kühn, S., Sansone, G., Kling, M. F., Schröder, H., Bergues, B., Kahaly, S., Varju, K., Forembski, A., Nikolopoulos, L. A. A., Tzallas, P., Charalambidis, D.
Two XUV-photon double ionization of Ne, induced by an intense few-pulse attosecond train with a ~ 4 fs envelope duration is investigated experimentally and theoretically. The experiment is performed at ELI-ALPS utilizing the recently constructed 10 H
Externí odkaz:
http://arxiv.org/abs/2209.01998
Autor:
Vassakis, E., Madas, S., Spachis, L., Lamprou, T., Orfanos, I., Kahaly, S., Kahaly, M. Upadhyay, Charalambidis, D., Skantzakis, E.
In this work, we demonstrate experimentally the efficient generation and tunability of energetic highly-elliptical high-harmonics in Ar gas, driven by intense two-color counter rotating laser electric fields. A bi-chromatic beam tailored by a MAZEL-T
Externí odkaz:
http://arxiv.org/abs/2202.09521
Autor:
Carpeggiani, A., Bodi, B., Skantzakis, E. S., Tisch, J. W. G., Marangos, J. P., Charalambidis, D., Tzallas, P., Zair, A.
We measure for the first time the duration of long-quantum path EUV high harmonics produced in xenon gas. The long-quantum path contribution to the high-harmonic signal was carefully controlled by employing a two-colour driving laser field and a high
Externí odkaz:
http://arxiv.org/abs/2106.11259
In this study the generation of energetic coherent extreme ultraviolet (XUV) radiation with controlled polarization, is reported. The XUV radiation results from the process of high harmonic generation (HHG), in a gas phase atomic medium, driven by an
Externí odkaz:
http://arxiv.org/abs/2106.08690
Autor:
Chatziathanasiou, S., Liontos, I., Skantzakis, E., Kahaly, S., Kahaly, M. Upadhyay, Tsatrafyllis, N., Faucher, O., Witzel, B., Papadakis, N., Charalambidis, D., Tzallas, P.
Publikováno v:
Physical Review A 100, 061404(R) (2019)
Electron quantum path interferences in strongly laser-driven aligned molecules and their dependence on the molecular alignment is an essential open problem in strong-field molecular physics. Here, we demonstrate an approach which provides direct acce
Externí odkaz:
http://arxiv.org/abs/2011.02261
Autor:
Skantzakis, E., Chatziathansiou, S., Carpeggiani, P. A., Sansone, G., Nayak, A., Gray, D., Tzallas, P., Charalambidis, D., Hertz, E., Faucher, O.
Publikováno v:
Scientific Reports volume 6, Article number: 39295 (2016)
The present work reports on the generation of short-pulse coherent extreme ultraviolet radiation of controlled polarization. The proposed strategy is based on high-order harmonics generated in pre-aligned molecules. Field-free molecular alignment pro
Externí odkaz:
http://arxiv.org/abs/1903.00039
Autor:
Nayak, A., Orfanos, I., Makos, I., Dumergue, M., Kuhn, S., Skantzakis, E., Bodi, B., Varju, K., Kalpouzos, C., Banks, H. I. B., Emmanouilidou, A., Charalambidis, D., Tzallas, P.
Publikováno v:
Phys. Rev. A 98, 023426 (2018)
We report the observation of multiple ionization of Argon through multi-XUV-photon absorption induced by an unprecedentedly powerful laser driven high-harmonic-generation source. Comparing the measured intensity dependence of the yield of the differe
Externí odkaz:
http://arxiv.org/abs/1806.05485
Studies of ultrafast dynamics along with femtosecond-pulse metrology rely on non-linear processes, induced solely by the exciting/probing pulses or the pulses to be characterized. Extension of these approaches to the extreme-ultraviolet (XUV) spectra
Externí odkaz:
http://arxiv.org/abs/1103.0873
The emission of above-ionization-threshold harmonics results from the recombination of two electron wavepackets moving along a "short" and a "long" trajectory in the atomic continuum. Attosecond pulse train generation has so far been attributed to th
Externí odkaz:
http://arxiv.org/abs/1007.4155
The two basic approaches underlying the metrology of attosecond pulse trains are compared, i.e. the 2nd order Intensity Volume Autocorrelation and the Resolution of Attosecond Beating by Interference of Two photon Transitions (RABITT). They give rath
Externí odkaz:
http://arxiv.org/abs/1005.0568