Temporal coherence of ultrashort high-order harmonic pulses
(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].
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2257462
- author
- Bellini, M ; Lynga, C ; Tozzi, A ; Gaarde, M. B ; Hansch, T. W ; L'Huillier, Anne LU and Wahlström, Claes-Göran LU
- organization
- publishing date
- 1998
- 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
- 2016-04-04 08:55:19
- date last changed
- 2022-03-15 17:05:46
@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 = {{https://lup.lub.lu.se/search/files/5210034/2297036.pdf}}, doi = {{10.1103/PhysRevLett.81.297}}, volume = {{81}}, year = {{1998}}, }