Metrology of high-order harmonics for free-electron laser seeding
(2011) In New Journal of Physics 13.- Abstract
- We examine the characteristics of high-order harmonics generated with 800 nm, 25 mJ, 160 fs laser pulses in an Ar gas cell with the objective of seeding a free electron laser. We measure the energy per pulse and per harmonic, the energy jitter, the divergence and the position stability of the harmonic beam. We perform ab initio numerical simulations based on integration of the time-dependent Schrodinger equation and of the wave equation within the slowly varying envelope approximation. The results reproduce the experimental measurements to better than a factor of two. The interaction of a frequency comb of harmonic fields with an electron bunch in an undulator is examined with a simple model consisting of calculating the energy modulation... (More)
- We examine the characteristics of high-order harmonics generated with 800 nm, 25 mJ, 160 fs laser pulses in an Ar gas cell with the objective of seeding a free electron laser. We measure the energy per pulse and per harmonic, the energy jitter, the divergence and the position stability of the harmonic beam. We perform ab initio numerical simulations based on integration of the time-dependent Schrodinger equation and of the wave equation within the slowly varying envelope approximation. The results reproduce the experimental measurements to better than a factor of two. The interaction of a frequency comb of harmonic fields with an electron bunch in an undulator is examined with a simple model consisting of calculating the energy modulation owing to the seed-electron interaction. The model indicates that the undulator acts as a spectral filter selecting a given harmonic. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2162828
- author
- Erny, Christian LU ; Mansten, Erik LU ; Gisselbrecht, Mathieu LU ; Schwenke, Jörg LU ; Rakowski, Rafal LU ; He, Xinkui LU ; Gaarde, Mette LU ; Werin, Sverker LU and L'Huillier, Anne LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- New Journal of Physics
- volume
- 13
- article number
- 073035
- publisher
- IOP Publishing
- external identifiers
-
- wos:000293888800002
- scopus:80051616148
- ISSN
- 1367-2630
- DOI
- 10.1088/1367-2630/13/7/073035
- language
- English
- LU publication?
- yes
- id
- 2d7cd40e-3d9c-4936-829f-80d5fc183b73 (old id 2162828)
- date added to LUP
- 2016-04-01 13:18:03
- date last changed
- 2022-02-19 04:43:41
@article{2d7cd40e-3d9c-4936-829f-80d5fc183b73, abstract = {{We examine the characteristics of high-order harmonics generated with 800 nm, 25 mJ, 160 fs laser pulses in an Ar gas cell with the objective of seeding a free electron laser. We measure the energy per pulse and per harmonic, the energy jitter, the divergence and the position stability of the harmonic beam. We perform ab initio numerical simulations based on integration of the time-dependent Schrodinger equation and of the wave equation within the slowly varying envelope approximation. The results reproduce the experimental measurements to better than a factor of two. The interaction of a frequency comb of harmonic fields with an electron bunch in an undulator is examined with a simple model consisting of calculating the energy modulation owing to the seed-electron interaction. The model indicates that the undulator acts as a spectral filter selecting a given harmonic.}}, author = {{Erny, Christian and Mansten, Erik and Gisselbrecht, Mathieu and Schwenke, Jörg and Rakowski, Rafal and He, Xinkui and Gaarde, Mette and Werin, Sverker and L'Huillier, Anne}}, issn = {{1367-2630}}, language = {{eng}}, publisher = {{IOP Publishing}}, series = {{New Journal of Physics}}, title = {{Metrology of high-order harmonics for free-electron laser seeding}}, url = {{http://dx.doi.org/10.1088/1367-2630/13/7/073035}}, doi = {{10.1088/1367-2630/13/7/073035}}, volume = {{13}}, year = {{2011}}, }