Multiple-harmonic generation in rare gases at high laser intensity
(1989) In Physical Review A 39(11). p.5751-5761- Abstract
We present experimental measurements of vacuum ultraviolet light emission processes in a 15-Torr rare-gas medium exposed to a strong 1064-nm laser field. Apart from a small number of lines which correspond to discrete transitions, and a broad continuum emission, we essentially observe the odd harmonics of the laser field, up to very high order. At a 3×1013 W cm-2 laser intensity, the highest-order harmonics observed are the 33rd in Ar, the 29th in Kr, and the 21st in Xe. The harmonic distribution presents three regions: a steep decrease for the first harmonics, a plateau, and a sudden cutoff at high order. We study the variation of the conversion efficiency for some of the harmonics as a function of the incident laser intensity and the... (More)
We present experimental measurements of vacuum ultraviolet light emission processes in a 15-Torr rare-gas medium exposed to a strong 1064-nm laser field. Apart from a small number of lines which correspond to discrete transitions, and a broad continuum emission, we essentially observe the odd harmonics of the laser field, up to very high order. At a 3×1013 W cm-2 laser intensity, the highest-order harmonics observed are the 33rd in Ar, the 29th in Kr, and the 21st in Xe. The harmonic distribution presents three regions: a steep decrease for the first harmonics, a plateau, and a sudden cutoff at high order. We study the variation of the conversion efficiency for some of the harmonics as a function of the incident laser intensity and the atomic density. Finally, we analyze the harmonic-generation results as thoroughly as possible, in particular, by characterizing the phase-matching conditions in our experiment.
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- author
- Li, X. F. ; Lhuillier, A. LU ; Ferray, M. ; Lompré, L. A. and Mainfray, G.
- publishing date
- 1989-06-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A
- volume
- 39
- issue
- 11
- pages
- 11 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:3943050079
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.39.5751
- language
- English
- LU publication?
- no
- id
- f61231ae-7117-405e-9db1-d7d183900440
- date added to LUP
- 2019-05-22 16:32:59
- date last changed
- 2021-10-10 04:57:08
@article{f61231ae-7117-405e-9db1-d7d183900440, abstract = {{<p>We present experimental measurements of vacuum ultraviolet light emission processes in a 15-Torr rare-gas medium exposed to a strong 1064-nm laser field. Apart from a small number of lines which correspond to discrete transitions, and a broad continuum emission, we essentially observe the odd harmonics of the laser field, up to very high order. At a 3×1013 W cm-2 laser intensity, the highest-order harmonics observed are the 33rd in Ar, the 29th in Kr, and the 21st in Xe. The harmonic distribution presents three regions: a steep decrease for the first harmonics, a plateau, and a sudden cutoff at high order. We study the variation of the conversion efficiency for some of the harmonics as a function of the incident laser intensity and the atomic density. Finally, we analyze the harmonic-generation results as thoroughly as possible, in particular, by characterizing the phase-matching conditions in our experiment.</p>}}, author = {{Li, X. F. and Lhuillier, A. and Ferray, M. and Lompré, L. A. and Mainfray, G.}}, issn = {{1050-2947}}, language = {{eng}}, month = {{06}}, number = {{11}}, pages = {{5751--5761}}, publisher = {{American Physical Society}}, series = {{Physical Review A}}, title = {{Multiple-harmonic generation in rare gases at high laser intensity}}, url = {{http://dx.doi.org/10.1103/PhysRevA.39.5751}}, doi = {{10.1103/PhysRevA.39.5751}}, volume = {{39}}, year = {{1989}}, }