Interatomic contributions to high-energy electron-molecule scattering

McCaffrey, Philip D.; Dewhurst, J. K.; Rankin, David W. H.; Mawhorter, Richard; Sharma, Sangeeta

doi:10.1063/1.2928806

Cited by 15 publications

(11 citation statements)

References 14 publications

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“…1, the emitted EWP is returned and rescattered against two scattering centers (i.e., two atoms in a molecule), leading to interference fringes in the detected electron momentum distribution. These interference fringes are described by the coherent molecular interference term, I M , which contains structural information and can be in the framework of the independent atom model (IAM) [75,93,94], as given by [11,95]…”

Section: Laser-induced Electron Diffractionmentioning

confidence: 99%

Quantum interference and imaging using intense laser fields

et al. 2021

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The interference of matter waves is one of the intriguing features of quantum mechanics that has impressed researchers and laymen since it was first suggested almost a century ago. Nowadays, attosecond science tools allow us to utilize it in order to extract valuable information from electron wave packets. Intense laser fields are routinely employed to create electron wave packets and control their motion with attosecond and ångström precision. In this perspective article, which is based on our debate at the Quantum Battles in Attoscience virtual workshop 2020, we discuss some of the peculiarities of intense light-matter interaction. We review some of the most important techniques used in attosecond imaging, namely photoelectron holography and laser-induced electron diffraction. We attempt to ask and answer a few questions that do not get asked very often. For example, if we are interested in position space information, why are measurements carried out in momentum space? How to accurately retrieve photoelectron spectra from the numerical solution of the time-dependent Schrödinger equation? And, what causes the different coherence properties of high-harmonic generation and above-threshold ionization? GraphicAbstract

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Section: Laser-induced Electron Diffractionmentioning

confidence: 99%

Quantum interference and imaging using intense laser fields

et al. 2021

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“…two atoms in a molecule), leading to interference fringes in the detected electron momentum distribution. These interference fringes are described by the coherent molecular interference term, I M , which contains structural information and can be in the framework of the independent atom model [127,99,88], as given by [5,60]…”

Section: Laser-induced Electron Diffractionmentioning

confidence: 99%

Quantum interference and imaging using intense laser fields

Amini,

Chacón,

Eckart

et al. 2021

Preprint

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The interference of matter waves is one of the intriguing features of quantum mechanics that has impressed researchers and laymen since it was first suggested almost a century ago. Nowadays, attosecond science tools allow us to utilize it in order to extract valuable information from electron wavepackets. Intense laser fields are routinely employed to create electron wave packets and control their motion with subfemtosecond and sub-nanometer precision. In this perspective article, we discuss some of the peculiarities of intense light-matter interaction. We review some of the most important techniques used in attosecond imaging, namely photoelectron holography and laser-induced electron diffraction. We attempt to ask and answer a few questions that do not get asked very often. For example, if we are interested in position space information, why are measurements carried out in momentum space? How to accurately retrieve photoelecron spactra from the numerical solution of the time-dependent Schrödinger equation? And, what causes the different coherence properties of high-harmonic generation and above-threshold ionization? PACS. 33-15.-e Properties of molecules -33.20.Xx Spectra induced by strong-field or attosecond laser irradiation

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“…The scattered electrons are measured in the forward directions. The DCS, or the diffraction images, are calculated using the IAM [26][27][28]. In the IAM, a molecule is modeled as a collection of its component atoms fixed in space.…”

Section: A Independent Atom Model For Electron-molecule Collisionsmentioning

confidence: 99%

Self-imaging of molecules from diffraction spectra by laser-induced rescattering electrons

Chen

et al. 2010

Phys. Rev. A

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We study high-energy angle-resolved photoelectron spectra of molecules in strong fields. In an oscillating laser electric field, electrons released earlier in the pulse may return to recollide with the target ion, in a process similar to scattering by laboratory prepared electrons. If midinfrared lasers are used, we show that the images generated by the returning electrons are similar to images observed in typical gas-phase electron diffraction (GED). These spectra can be used to retrieve the positions of atoms in a molecule as in GED. Since infrared laser pulses of durations of a few femtoseconds are already available today, the study of these high-energy photoelectrons offers the opportunity of imaging the structure of transient molecules with temporal resolution of a few femtoseconds.

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Interatomic contributions to high-energy electron-molecule scattering

Cited by 15 publications

References 14 publications

Quantum interference and imaging using intense laser fields

Quantum interference and imaging using intense laser fields

Quantum interference and imaging using intense laser fields

Self-imaging of molecules from diffraction spectra by laser-induced rescattering electrons

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