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Temporal coherence of ultrashort high-order harmonic pulses

Bellini, M; Lynga, C; Tozzi, A; Gaarde, M. B; Hansch, T. W; L'Huillier, Anne LU and Wahlström, Claes-Göran LU (1998) In Physical Review Letters 81(2). p.297-300
Abstract
We have studied the temporal coherence of high-order harmonics (up to the 15th order) produced by focusing 100 fs laser pulses into an argon gas jet. We measure the visibility of the interference fringes, produced when two spatially separated harmonic sources interfere in the far field, as a function of the time delay between the two sources. In general, we find long coherence times, comparable to the expected pulse durations of the harmonics. For some of the harmonics, the interference pattern exhibits two regions, with significantly different coherence times. These results are interpreted in terms of different electronic trajectories contributing to harmonic generation. [S0031-9007(98)05569-7].
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
81
issue
2
pages
297 - 300
publisher
American Physical Society
external identifiers
  • scopus:0003048242
ISSN
1079-7114
DOI
10.1103/PhysRevLett.81.297
language
English
LU publication?
yes
id
c278b9c9-a5c6-4d97-83d3-321f4c6c4d3b (old id 2257462)
date added to LUP
2012-02-23 23:05:13
date last changed
2017-07-30 04:51:58
@article{c278b9c9-a5c6-4d97-83d3-321f4c6c4d3b,
  abstract     = {We have studied the temporal coherence of high-order harmonics (up to the 15th order) produced by focusing 100 fs laser pulses into an argon gas jet. We measure the visibility of the interference fringes, produced when two spatially separated harmonic sources interfere in the far field, as a function of the time delay between the two sources. In general, we find long coherence times, comparable to the expected pulse durations of the harmonics. For some of the harmonics, the interference pattern exhibits two regions, with significantly different coherence times. These results are interpreted in terms of different electronic trajectories contributing to harmonic generation. [S0031-9007(98)05569-7].},
  author       = {Bellini, M and Lynga, C and Tozzi, A and Gaarde, M. B and Hansch, T. W and L'Huillier, Anne and Wahlström, Claes-Göran},
  issn         = {1079-7114},
  language     = {eng},
  number       = {2},
  pages        = {297--300},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Temporal coherence of ultrashort high-order harmonic pulses},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.81.297},
  volume       = {81},
  year         = {1998},
}