Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Lukas Gallmann"'
Autor:
Claudio Cirelli, Carlos Marante, Sebastian Heuser, C. L. M. Petersson, Álvaro Jiménez Galán, Luca Argenti, Shiyang Zhong, David Busto, Marcus Isinger, Saikat Nandi, Sylvain Maclot, Linnea Rading, Per Johnsson, Mathieu Gisselbrecht, Matteo Lucchini, Lukas Gallmann, J. Marcus Dahlström, Eva Lindroth, Anne L’Huillier, Fernando Martín, Ursula Keller
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Ionization time delays are of interest in understanding the photoionization mechanism in atoms and molecules in ultra-short time scales. Here the authors investigate the angular dependence of photoionization time delays in the presence of an autoioni
Externí odkaz:
https://doaj.org/article/fd91b74b68d347b68ea4a1092f3c3de0
Autor:
Matteo Lucchini, Jens Herrmann, André Ludwig, Reto Locher, Mazyar Sabbar, Lukas Gallmann, Ursula Keller
Publikováno v:
New Journal of Physics, Vol 15, Iss 10, p 103010 (2013)
Attosecond control of the optical response of helium atoms to extreme ultraviolet radiation in the presence of moderately strong infrared laser light has been recently demonstrated both by employing attosecond pulse trains (APTs) and single attosecon
Externí odkaz:
https://doaj.org/article/299f7f22c94a4ffbba3730ab57e4ceca
Publikováno v:
Optica, 9 (12)
High harmonic generation (HHG) in atomic gases is generally assumed to originate from photoelectrons that are not perturbed by neighboring particles. In this paper, we study theoretically and experimentally the regime where this approximation breaks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe99cec5284936a3332d2bfa6f08ff42
https://hdl.handle.net/20.500.11850/588540
https://hdl.handle.net/20.500.11850/588540
Autor:
Ursula Keller, Fabian Schlaepfer, Shunsuke A. Sato, Matteo Lucchini, Nadja Hartmann, Lukas Gallmann, Angel Rubio, Lamia Kasmi, Mikhail Volkov
Publikováno v:
Nature Physics
Transition metals with their densely confined and strongly coupled valence electrons are key constituents of many materials with unconventional properties, such as high-Tc superconductors, Mott insulators and transition-metal dichalcogenides. Strong
Autor:
Zeno Schumacher, Swarnendu Bhattacharyya, Lukas Gallmann, Nadja Hartmann, Ursula Rothlisberger, Fabian Schlaepfer, Ursula Keller, Matteo Lucchini, Mikhail Volkov
Publikováno v:
Physical Chemistry Chemical Physics, 21 (33)
The ultrafast nuclear dynamics of the acetylene cation C2H2+ following photoionization of the neutral molecule is investigated using an extreme-ultraviolet pump/infrared probe setup. The observed modulation of the C2H+ fragment ion yield with pump–
Autor:
Lukas Gallmann, Ursula Keller, Pierre-Alexis Chevreuil, Fabian D. J. Brunner, Christopher R. Phillips, Stefan Hrisafov, Justinas Pupeikis
Publikováno v:
Optics Express, 28 (26)
We present a near-infrared optical parametric chirped-pulse amplifier (OPCPA) and soft X-ray (SXR) high-harmonic generation system. The OPCPA produces few-cycle pulses at a center wavelength of 800 nm and operates at a high repetition rate of 100 kHz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d914e11009c01f2e138224baca8d9f6d
Autor:
Fernando Martín, Lukas Gallmann, Ursula Keller, Linnea Rading, Sebastian Heuser, S. Zhong, C. L. M. Petersson, Álvaro Jiménez Galán, Carlos Marante, D. Busto, Matteo Lucchini, M. Isinger, Per Johnsson, Claudio Cirelli, J. Marcus Dahlström, Saikat Nandi, Mathieu Gisselbrecht, Eva Lindroth, Anne L'Huillier, Luca Argenti, Sylvain Maclot
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Nature Communications, 9
Cirelli, C; Marante, C; Heuser, S; Petersson, CLM; Jimenez Galan, A; Argenti, L; et al.(2018). Anisotropic photoemission time delays close to a Fano resonance. NATURE COMMUNICATIONS, 9. doi: 10.1038/s41467-018-03009-1. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/5pt4z1gh
Nature communications, vol 9, iss 1
Nature Communications
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Nature Communications, 9
Cirelli, C; Marante, C; Heuser, S; Petersson, CLM; Jimenez Galan, A; Argenti, L; et al.(2018). Anisotropic photoemission time delays close to a Fano resonance. NATURE COMMUNICATIONS, 9. doi: 10.1038/s41467-018-03009-1. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/5pt4z1gh
Nature communications, vol 9, iss 1
Nature Communications
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Electron correlation and multielectron effects are fundamental interactions that govern many physical and chemical processes in atomic, molecular and solid state systems. The process of autoionization, induced by resonant excitation of electrons into
Autor:
Justinas Pupeikis, Fabian D. J. Brunner, Lukas Gallmann, Christopher R. Phillips, Ursula Keller, Pierre-Alexis Chevreuil, Stefan Hrisafov
Publikováno v:
Optics Express, 29 (21)
We compare the generation of high-order harmonics in the water window (283-543 eV) with 0.8-µm and 2.2-µm few-cycle lasers at a pulse repetition rate of 100 kHz. Using conventional phase matching with the 2.2-µm driver and what we attribute to non
Autor:
Nadja, Hartmann, Swarnendu, Bhattacharyya, Fabian, Schlaepfer, Mikhail, Volkov, Zeno, Schumacher, Matteo, Lucchini, Lukas, Gallmann, Ursula, Rothlisberger, Ursula, Keller
Publikováno v:
Physical chemistry chemical physics : PCCP. 21(33)
The ultrafast nuclear dynamics of the acetylene cation C2H2+ following photoionization of the neutral molecule is investigated using an extreme-ultraviolet pump/infrared probe setup. The observed modulation of the C2H+ fragment ion yield with pump-pr
Autor:
Nicolas Bigler, Christopher R. Phillips, Stefan Hrisafov, Lukas Gallmann, Justinas Pupeikis, U. Keller
Publikováno v:
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Mid-infrared (mid-IR) laser sources with a high repetition rate and peak power are particularly interesting for strong-field and attosecond science, enabling fast measurements and shorter attosecond pulses via the high-harmonic cut-off [1]. Here we d