Two- and three-photon ionization of rare gases using femtosecond harmonic pulses generated in a gas medium
(2001) In Physical Review A (Atomic, Molecular and Optical Physics) 64(3).- Abstract
- The fifth harmonic of a 60-fs 10-Hz terawatt titanium:sapphire laser generated in Xe gas is used to ionize Xe and Kr atoms by nonresonant two-photon absorption and At atoms through a quasiresonant three-photon process. At relatively low harmonic yields, the variation of the number of Kr and Xe ions with the number of harmonic photons is quadratic. At high harmonic yields, it deviates from a quadratic behavior, which we attribute to the influence of ionization in the harmonic process distorting the harmonic wave front. The two-photon ionization cross sections in Xe and Kr at 160 nm are found to be comparable.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2257847
- author
- Descamps, D ; Roos, L ; Delfin, C ; L'Huillier, Anne LU and Wahlström, Claes-Göran LU
- organization
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 64
- issue
- 3
- publisher
- American Physical Society
- external identifiers
-
- scopus:0035440586
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.64.031404
- language
- English
- LU publication?
- yes
- id
- d9a07acb-4a0d-4851-a347-f6fb60d511d8 (old id 2257847)
- date added to LUP
- 2016-04-04 07:02:29
- date last changed
- 2022-01-29 01:38:44
@article{d9a07acb-4a0d-4851-a347-f6fb60d511d8, abstract = {{The fifth harmonic of a 60-fs 10-Hz terawatt titanium:sapphire laser generated in Xe gas is used to ionize Xe and Kr atoms by nonresonant two-photon absorption and At atoms through a quasiresonant three-photon process. At relatively low harmonic yields, the variation of the number of Kr and Xe ions with the number of harmonic photons is quadratic. At high harmonic yields, it deviates from a quadratic behavior, which we attribute to the influence of ionization in the harmonic process distorting the harmonic wave front. The two-photon ionization cross sections in Xe and Kr at 160 nm are found to be comparable.}}, author = {{Descamps, D and Roos, L and Delfin, C and L'Huillier, Anne and Wahlström, Claes-Göran}}, issn = {{1050-2947}}, language = {{eng}}, number = {{3}}, publisher = {{American Physical Society}}, series = {{Physical Review A (Atomic, Molecular and Optical Physics)}}, title = {{Two- and three-photon ionization of rare gases using femtosecond harmonic pulses generated in a gas medium}}, url = {{https://lup.lub.lu.se/search/files/5120909/2297133.pdf}}, doi = {{10.1103/PhysRevA.64.031404}}, volume = {{64}}, year = {{2001}}, }