Journal ArticleDOI
Reading diffraction images in strong field ionization of diatomic molecules
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TLDR
In this paper, a theoretical analysis of how intense, few-cycle infrared laser pulses can be used to image the structure of small molecules with nearly 1 fs temporal and sub-A spatial resolution.Abstract:
We present a theoretical analysis of how intense, few-cycle infrared laser pulses can be used to image the structure of small molecules with nearly 1 fs temporal and sub-A spatial resolution. We identify and analyse several physical mechanisms responsible for the distortions of the diffraction image and describe a recipe for recovering an un-distorted image from angle and energy-resolved electron spectra. We also identify holographic patterns in the photoelectron spectra and discuss the requirements to enhancing the hologram resolution for imaging the scattering potential.read more
Citations
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Journal ArticleDOI
Tomographic imaging of molecular orbitals
Jiro Itatani,J. Levesque,J. Levesque,D. Zeidler,Hiromichi Niikura,Hiromichi Niikura,Henri Pépin,Jean-Claude Kieffer,Paul B. Corkum,David M. Villeneuve +9 more
TL;DR: It is demonstrated that the full three-dimensional structure of a single orbital can be imaged by a seemingly unlikely technique, using high harmonics generated from intense femtosecond laser pulses focused on aligned molecules.
Journal ArticleDOI
Laser-Induced Electron Tunneling and Diffraction
M. Meckel,M. Meckel,D. Comtois,D. Zeidler,D. Zeidler,André Staudte,André Staudte,D. Pavičić,H. C. Bandulet,Henri Pépin,Jean-Claude Kieffer,Reinhard Dörner,David M. Villeneuve,Paul B. Corkum +13 more
TL;DR: It is shown that the momentum distribution of the extracted electron carries the fingerprint of the highest occupied molecular orbital, whereas the elastically scattered electrons reveal the position of the nuclear components of the molecule.
Journal ArticleDOI
Above-threshold ionization by few-cycle pulses
TL;DR: The theoretical description and experimental methods and results for above-threshold ionization (ATI) by few-cycle pulses are reviewed in this article, where a pulse is referred to as a fewcycle pulse if its detailed shape, parametrized by its carrier-envelope phase, affects its interaction with matter.
Journal ArticleDOI
Time-Resolved Holography with Photoelectrons
Y. Huismans,Arnaud Rouzée,A. Gijsbertsen,Julia H. Jungmann,Aneta Smolkowska,P S W M Logman,Franck Lépine,C. Cauchy,Sébastien Zamith,Tatiana Marchenko,Joost M. Bakker,Giel Berden,Britta Redlich,A.F.G. van der Meer,Harm Geert Muller,W Vermin,Kenneth J. Schafer,Michael Spanner,M. Yu. Ivanov,Olga Smirnova,Dieter Bauer,S. V. Popruzhenko,Marcus Vrakking +22 more
TL;DR: Experiments in which metastable xenon atoms were ionized with intense 7-micrometer laser pulses from a free-electron laser recorded holographic structures that record underlying electron dynamics on a sublaser-cycle time scale, enabling photoelectron spectroscopy with a time resolution higher than the duration of the ionizing pulse.
Journal ArticleDOI
Resolving the time when an electron exits a tunnelling barrier
D. Shafir,Hadas Soifer,Barry D. Bruner,Michal Dagan,Yann Mairesse,Serguei Patchkovskii,Misha Ivanov,Olga Smirnova,Nirit Dudovich +8 more
TL;DR: This approach provides a general tool for time-resolving multi-electron rearrangements in atoms and molecules—one of the key challenges in ultrafast science.
References
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Journal ArticleDOI
Plasma perspective on strong field multiphoton ionization.
TL;DR: During strong-field multiphoton ionization, a wave packet is formed each time the laser field passes its maximum value, and one important parameter which determines the strength of these effects is the rate at which the wave packet spreads in the direction perpendicular to the laser electric field.
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Colloquium: Aligning molecules with strong laser pulses
TL;DR: In this paper, the theoretical and experimental status of the intense laser alignment (EL alignment) technique is reviewed and a discussion of the physics underlying this technique and a description of methods of observing it in the laboratory is provided.
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Direct imaging of transient molecular structures with ultrafast diffraction.
Hyotcherl Ihee,Vladimir A. Lobastov,Udo M. Gomez,Boyd M. Goodson,Ramesh Srinivasan,Chong-Yu Ruan,Ahmed H. Zewail +6 more
TL;DR: This direct imaging of reactions was achieved using the third-generation apparatus equipped with an electron pulse, a charge-coupled device camera, and a mass spectrometer to demonstrate the vastly improved sensitivity, resolution, and versatility of UED for studying ultrafast structural dynamics in complex molecular systems.
Journal ArticleDOI
Sub-laser-cycle electron pulses for probing molecular dynamics.
Hiromichi Niikura,François Légaré,R. Hasbani,André D. Bandrauk,Misha Ivanov,David M. Villeneuve,Paul B. Corkum +6 more
TL;DR: This work proposes that the electrons themselves can be exploited for ultrafast measurements, and uses a ‘molecular clock’, based on a vibrational wave packet in H2+, to show that distinct bunches of electrons appear during electron–ion collisions with high current densities, and durations of about 1 femtosecond (10-15 s).
Journal ArticleDOI
Laser-induced electron diffraction : a new tool for probing ultrafast molecular dynamics
TL;DR: In this article, momentum angular distributions of the nonlinear multiphoton photoelectron spectra from intense ultrashort pulse ionization of H2+ molecular ions show signatures of electron diffraction from two nuclei.