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Proceedings Paper

High order harmonics in modulated slab waveguide
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Paper Abstract

High order harmonics is generated in a modulated slab waveguide which is filled with helium when a femtosecond laser is focused into this kind of waveguide. The modulated slab waveguide is used to implement quasi-phase matching of high order harmonics so that an obvious increase of the high harmonics yield at wavelengths close to the cutoff region was observed. High order harmonics generated in modulated waveguides with a period of 0.8mm and a period of 0.5mm respectively were compared. The results show that the shorter the period of the modulated slab waveguide is, the higher order high harmonics with phase mismatch we can compensate.

Paper Details

Date Published: 26 April 2019
PDF: 6 pages
Proc. SPIE 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies, 110340U (26 April 2019); doi: 10.1117/12.2525002
Show Author Affiliations
Peng Gu, AVIC Manufacturing Technology Institute (China)
Yizhuo Zhang, AVIC Manufacturing Technology Institute (China)
He Hao, AVIC Manufacturing Technology Institute (China)
Zhuo Li, AVIC Manufacturing Technology Institute (China)

Published in SPIE Proceedings Vol. 11034:
Short-pulse High-energy Lasers and Ultrafast Optical Technologies
Pavel Bakule; Constantin L. Haefner, Editor(s)

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