Results 51 to 60 of about 129,616 (305)

Non-sequential double ionization of Ar: from the single- to the many-cycle regime

New Journal of Physics, 2014
The transition from the near-single to the multi-cycle regime in non-sequential double ionization of argon is investigated experimentally. Argon atoms are exposed to intense laser pulses with a center wavelength around 790 nm and the momenta of electrons
M Kübel, K J Betsch, Nora G Kling, A S Alnaser, J Schmidt, U Kleineberg, Y Deng, I Ben-Itzhak, G G Paulus, T Pfeifer, J Ullrich, R Moshammer, M F Kling, B Bergues   +13 more
doaj   +1 more source

Ultrafast kinetics of the antiferromagnetic-ferromagnetic phase transition in FeRh

Nature Communications, 2022
Using ultrashort laser pulses it is possible to induce ferromagnetic ordering in otherwise anti-ferromagnetic FeRh. Here, Li et al. use THz emission spectroscopy with double pump to probe the transient dynamics of this transition, showing the ...
G. Li, R. Medapalli, J. H. Mentink, R. V. Mikhaylovskiy, T. G. H. Blank, S. K. K. Patel, A. K. Zvezdin, Th. Rasing, E. E. Fullerton, A. V. Kimel   +9 more
doaj   +1 more source

Dimensional Analysis of Double-Track Microstructures in a Lithium Niobate Crystal Induced by Ultrashort Laser Pulses

Photonics, 2023
Double-track microstructures were induced in the bulk of a z-cut lithium niobate crystal by 1030 nm 240 fs ultrashort laser pulses with a repetition rate of 100 kHz at variable pulse energies exceeding the critical Kerr self-focusing power.
Yulia Gulina, Jiaqi Zhu, Alexey Gorevoy, Mikhail Kosobokov, Anton Turygin, Boris Lisjikh, Andrey Akhmatkhanov, Vladimir Shur, Sergey Kudryashov   +8 more
doaj   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Molecular Alignment Under Strong Laser Pulses: Progress and Applications

Photonics
Molecular alignment under strong laser pulses is an important tool for manipulating quantum states and investigating ultrafast phenomena. This review summarizes two decades of advancement in laser-driven alignment techniques, such as cross-polarized ...
Ming Wang, Enliang Zhang, Qingqing Liang, Yi Liu   +3 more
doaj   +1 more source

Giant half-cycle attosecond pulses

, 2011
Half-cycle picosecond pulses have been produced from thin photo-conductors, when applying an electric field across the surface and switching on conduction by a short laser pulse.
A Bourdier, A Henig, AK Geim, B Dromey, D Herrmann, D You, E Goulielmakis, F Krausz, GD Tsakiris, H-C Wu, H.-C. Wu, J Bai, J Meyer-ter-Vehn, J Meyer-ter-Vehn, J. Meyer-ter-Vehn, JM Mikhailova, RR Jones, VL Bratman, Y Sentoku   +18 more
core   +1 more source

A biominősítés hatása a fogyasztók érzékelésére és attitűdjére csokoládék esetén [PDF]

, 2018
The time–energy information of ultrashort X-ray free-electron laser pulses generated by the Linac Coherent Light Source is measured with attosecond resolution via angular streaking of neon 1s photoelectrons.
A Lutman, A Marinelli, A Sanchez-Gonzalez, A Zholents, A. A. Lutman, A. A. Miahnahri, A. K. Kazansky, A. Marinelli, A. O. Lindahl, AA Lutman, AA Lutman, AK Kazansky, AK Kazansky, AK Kazansky, AL Cavalieri, C Behrens, C Behrens, C Milne, C Pellegrini, C. Benko, D Milathianaki, E Allaria, E Allaria, E Constant, E Goulielmakis, E Prat, F Krausz, G. Hartmann, HS Kang, I Grguraš, J Gagnon, J Itatani, J Li, J. Buck, J. Grünert, J. Krzywinski, J. Liu, J. Robinson, J. Viefhaus, KC Prince, L Young, M Altarelli, M Drescher, M Hentschel, M Schultze, M Schultze, M. Ilchen, M. Planas, M. S. Wagner, MM Seibert, MR Bionta, N Hartmann, N. Hartmann, N. M. Kabachnik, P Eckle, P Eckle, P Emma, P Emma, PM Kraus, R Kienberger, R. Heider, R. Kienberger, R. N. Coffee, S Baker, S Düsterer, S Huang, S Krinsky, S Kumar, S Neppl, S. P. Moeller, SV Milton, T Ishikawa, T. Feurer, T. Maxwell, W Helml, W Helml, W Zhang, W. Helml, Y Ding, Y Inubushi, Y Li   +80 more
core   +2 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Generation of Terawatt-Scale Vortex Pulses Based on Optical Parametric Chirped-Pulse Amplification

IEEE Photonics Journal, 2020
In this letter, we report the demonstration of terawatt (TW)-scale femtosecond vortex laser pulses based on noncollinear optical parametric chirped-pulse amplification (OPCPA) centered at 800 nm.
Wangjun Pan, Xiaoyan Liang, Lianghong Yu, Aotian Wang, Jinfeng Li, Ruxin Li   +5 more
doaj   +1 more source

Double diffraction in an atomic gravimeter

, 2009
We demonstrate the realization of a new scheme for cold atom gravimetry based on the use of double diffraction beamsplitters recently demonstrated in \cite{Leveque}, where the use of two retro-reflected Raman beams allows symmetric diffraction in $\pm ...
Bodart, Quentin, Landragin, Arnaud, Lévèque, Thomas, Malossi, Nicola, Merlet, Sébastien, Santos, Franck Pereira Dos   +5 more
core   +3 more sources