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Spatiotemporal coupling of attosecond pulses

Arnold, Cord L. LU ; Wikmark, Hampus LU ; Guo, Chen LU ; Vogelsang, Jan LU ; Smorenburg, Peter W. ; Coudert-Alteirac, Helene LU ; Lahl, Jan LU ; Peschel, Jasper LU ; Rudawski, Piotr LU and Dacasa, Hugo LU , et al. (2019) 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Abstract

Attosecond pulses in the extreme ultraviolet (XUV) spectral range are today routinely generated via high-order harmonic generation (HHG), when intense ultrashort laser pulses are focused into a gaseous generation medium. The effect is most easily understood in a semi-classical picture [1]. An electron can tunnel ionize from the distorted atomic potential, pick up kinetic energy in the laser field, potentially return to its parent ion and recombine. The excess energy is emitted as XUV photon. The process repeats for every half-cycle of the driving field, resulting in a train of attosecond pulses and in the frequency domain in the well-known, odd-order comb of harmonics. Two main families of electron trajectories leading to the same... (More)

Attosecond pulses in the extreme ultraviolet (XUV) spectral range are today routinely generated via high-order harmonic generation (HHG), when intense ultrashort laser pulses are focused into a gaseous generation medium. The effect is most easily understood in a semi-classical picture [1]. An electron can tunnel ionize from the distorted atomic potential, pick up kinetic energy in the laser field, potentially return to its parent ion and recombine. The excess energy is emitted as XUV photon. The process repeats for every half-cycle of the driving field, resulting in a train of attosecond pulses and in the frequency domain in the well-known, odd-order comb of harmonics. Two main families of electron trajectories leading to the same photon energy can be distinguished into 'short' and 'long', according to their time of travel in the continuum. Due to the complicated nature of the HHG process, attosecond pulses usually cannot be separated into their temporal and spatial profiles, but instead have strong chromatic aberration and are spatio-temporally coupled [2-4].

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publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
article number
8873279
publisher
Institute of Electrical and Electronics Engineers Inc.
conference name
2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
conference location
Munich, Germany
conference dates
2019-06-23 - 2019-06-27
external identifiers
  • scopus:85074652914
ISBN
9781728104690
DOI
10.1109/CLEOE-EQEC.2019.8873279
language
English
LU publication?
yes
id
db846137-f690-4348-a22a-46635cc92aee
date added to LUP
2019-11-21 13:21:07
date last changed
2020-05-10 06:38:18
@inproceedings{db846137-f690-4348-a22a-46635cc92aee,
  abstract     = {<p>Attosecond pulses in the extreme ultraviolet (XUV) spectral range are today routinely generated via high-order harmonic generation (HHG), when intense ultrashort laser pulses are focused into a gaseous generation medium. The effect is most easily understood in a semi-classical picture [1]. An electron can tunnel ionize from the distorted atomic potential, pick up kinetic energy in the laser field, potentially return to its parent ion and recombine. The excess energy is emitted as XUV photon. The process repeats for every half-cycle of the driving field, resulting in a train of attosecond pulses and in the frequency domain in the well-known, odd-order comb of harmonics. Two main families of electron trajectories leading to the same photon energy can be distinguished into 'short' and 'long', according to their time of travel in the continuum. Due to the complicated nature of the HHG process, attosecond pulses usually cannot be separated into their temporal and spatial profiles, but instead have strong chromatic aberration and are spatio-temporally coupled [2-4].</p>},
  author       = {Arnold, Cord L. and Wikmark, Hampus and Guo, Chen and Vogelsang, Jan and Smorenburg, Peter W. and Coudert-Alteirac, Helene and Lahl, Jan and Peschel, Jasper and Rudawski, Piotr and Dacasa, Hugo and Carlstrom, Stefanos and Maclot, Sylvain and Gaarde, Mette B. and Johnsson, Per and Lahuillier, Anne},
  booktitle    = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
  isbn         = {9781728104690},
  language     = {eng},
  publisher    = {Institute of Electrical and Electronics Engineers Inc.},
  title        = {Spatiotemporal coupling of attosecond pulses},
  url          = {http://dx.doi.org/10.1109/CLEOE-EQEC.2019.8873279},
  doi          = {10.1109/CLEOE-EQEC.2019.8873279},
  year         = {2019},
}