Spectral shaping of attosecond pulses using two-colour laser fields
(2008) In New Journal of Physics 10.- Abstract
- We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger... (More)
- We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger second-harmonic fields leads to an extended tunable range under conditions that are experimentally feasible. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1247197
- author
- Mansten, Erik
LU
; Dahlström, Marcus
LU
; Johnsson, Per
LU
; Swoboda, Marko LU ; L'Huillier, Anne LU
and Mauritsson, Johan LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- New Journal of Physics
- volume
- 10
- publisher
- IOP Publishing
- external identifiers
-
- wos:000258927700005
- scopus:50949120684
- ISSN
- 1367-2630
- DOI
- 10.1088/1367-2630/10/8/083041
- language
- English
- LU publication?
- yes
- id
- a284e47e-58b5-4f54-b9f6-6ce9c24e6a1b (old id 1247197)
- date added to LUP
- 2016-04-01 12:52:39
- date last changed
- 2022-02-11 17:55:27
@article{a284e47e-58b5-4f54-b9f6-6ce9c24e6a1b, abstract = {{We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger second-harmonic fields leads to an extended tunable range under conditions that are experimentally feasible.}}, author = {{Mansten, Erik and Dahlström, Marcus and Johnsson, Per and Swoboda, Marko and L'Huillier, Anne and Mauritsson, Johan}}, issn = {{1367-2630}}, language = {{eng}}, publisher = {{IOP Publishing}}, series = {{New Journal of Physics}}, title = {{Spectral shaping of attosecond pulses using two-colour laser fields}}, url = {{http://dx.doi.org/10.1088/1367-2630/10/8/083041}}, doi = {{10.1088/1367-2630/10/8/083041}}, volume = {{10}}, year = {{2008}}, }