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Enhanced two-color high-harmonic generation achieved by adding an extra gas medium

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Title
Enhanced two-color high-harmonic generation achieved by adding an extra gas medium
Author(s)
Seung Beom Park; Kyungseung Kim; Kyoung Hwan Lee; Hyung Taek Kim; Chang Hee Nam
Publication Date
2015-09
Journal
APPLIED PHYSICS B-LASERS AND OPTICS, v.120, no.4, pp.723 - 729
Publisher
SPRINGER
Abstract
The high-harmonic generation in a two-color laser field, consisting of a 30-fs Ti:Sapphire laser pulse and its second harmonic, could be enhanced by installing an extra gas medium of Ar in front of the harmonic generation medium of He. The effects of the extra medium were examined by analyzing harmonic spectra taken under different experimental conditions. The observed characteristics of enhanced harmonic generation were explained in terms of the profile modification of the two-color laser beam. The 34th harmonic at 23.5 nm and 38th harmonic at 21.5 nm were enhanced 2.5 and 2 times, respectively
URI
https://pr.ibs.re.kr/handle/8788114/1876
ISSN
0946-2171
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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