Generation of submicrojoule high harmonics using a long gas jet in a two-color laser field

Generation of submicrojoule high harmonics using a long gas jet in a two-color laser field

We have achieved very efficient high-harmonic generation in a two-color laser field using a long gas jet of He. With the optimization of laser parameters and target conditions, strong harmonics were produced at 2(2n+1)th orders in an orthogonally polarized two-color field. The strongest harmonic at...

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Veröffentlicht in:Applied physics letters 2008-01, Vol.92 (2)
Hauptverfasser: Kim, I Jong, Lee, Gae Hwang, Park, Seung Beom, Lee, Yong Soo, Kim, Tae Keun, Nam, Chang Hee, Mocek, Tomas, Jakubczak, Krzysztof
Format: Artikel
Sprache:eng
Schlagworte:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COLOR
GAS LASERS
HARMONIC GENERATION
HARMONICS
HELIUM
LASER RADIATION
OPTIMIZATION
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Zusammenfassung:We have achieved very efficient high-harmonic generation in a two-color laser field using a long gas jet of He. With the optimization of laser parameters and target conditions, strong harmonics were produced at 2(2n+1)th orders in an orthogonally polarized two-color field. The strongest harmonic at the 38th order (21.6nm) reached an energy of 0.6μJ with a 6mm gas jet, giving a conversion efficiency as high as 2×10−4.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2836252