Photodetachment of F-by short laser pulses. Comparison between experiments and numerical results

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2 Citazioni (Scopus)

Abstract

Recently, angle-resolved photoelectron spectra have been measured by exposing negative F–ions to linearly or circularly polarized infrared femtosecond laser fields. We compare the experimental results with numerical calculations carried out in the framework of a Keldysh-type theory modified to account for both the time shape and the spatial inhomogeneity of the pulse. In order to account for the finite duration of the laser pulse, our results have been obtained through calculations of photodetachment probabilities. By using the saddle-point method it is possible to show that the transition amplitude may be written as a coherent sum of terms giving rise to interferences. This circumstance suggests that some particular features of the experimental results may be described in terms of quantum interferences in the time domain.
Lingua originaleEnglish
pagine (da-a)805-812
Numero di pagine8
RivistaLaser Physics
Volume19
Stato di pubblicazionePublished - 2009

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photodetachment
Laser pulses
Photoelectrons
pulses
Ultrashort pulses
lasers
interference
Experiments
saddle points
Infrared radiation
infrared lasers
Ions
inhomogeneity
photoelectrons
ions

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Industrial and Manufacturing Engineering
  • Condensed Matter Physics
  • Instrumentation

Cita questo

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title = "Photodetachment of F-by short laser pulses. Comparison between experiments and numerical results",
abstract = "Recently, angle-resolved photoelectron spectra have been measured by exposing negative F–ions to linearly or circularly polarized infrared femtosecond laser fields. We compare the experimental results with numerical calculations carried out in the framework of a Keldysh-type theory modified to account for both the time shape and the spatial inhomogeneity of the pulse. In order to account for the finite duration of the laser pulse, our results have been obtained through calculations of photodetachment probabilities. By using the saddle-point method it is possible to show that the transition amplitude may be written as a coherent sum of terms giving rise to interferences. This circumstance suggests that some particular features of the experimental results may be described in terms of quantum interferences in the time domain.",
author = "Claudio Leone and Saverio Bivona and Riccardo Burlon and Giovanni Bonanno",
year = "2009",
language = "English",
volume = "19",
pages = "805--812",
journal = "Laser Physics",
issn = "1054-660X",
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T1 - Photodetachment of F-by short laser pulses. Comparison between experiments and numerical results

AU - Leone, Claudio

AU - Bivona, Saverio

AU - Burlon, Riccardo

AU - Bonanno, Giovanni

PY - 2009

Y1 - 2009

N2 - Recently, angle-resolved photoelectron spectra have been measured by exposing negative F–ions to linearly or circularly polarized infrared femtosecond laser fields. We compare the experimental results with numerical calculations carried out in the framework of a Keldysh-type theory modified to account for both the time shape and the spatial inhomogeneity of the pulse. In order to account for the finite duration of the laser pulse, our results have been obtained through calculations of photodetachment probabilities. By using the saddle-point method it is possible to show that the transition amplitude may be written as a coherent sum of terms giving rise to interferences. This circumstance suggests that some particular features of the experimental results may be described in terms of quantum interferences in the time domain.

AB - Recently, angle-resolved photoelectron spectra have been measured by exposing negative F–ions to linearly or circularly polarized infrared femtosecond laser fields. We compare the experimental results with numerical calculations carried out in the framework of a Keldysh-type theory modified to account for both the time shape and the spatial inhomogeneity of the pulse. In order to account for the finite duration of the laser pulse, our results have been obtained through calculations of photodetachment probabilities. By using the saddle-point method it is possible to show that the transition amplitude may be written as a coherent sum of terms giving rise to interferences. This circumstance suggests that some particular features of the experimental results may be described in terms of quantum interferences in the time domain.

UR - http://hdl.handle.net/10447/34112

M3 - Article

VL - 19

SP - 805

EP - 812

JO - Laser Physics

JF - Laser Physics

SN - 1054-660X

ER -