Dramatic enhancement of high-order harmonic generation

被引：117
作者：
Takahashi, Eiji J.
Kanai, Tsuneto
Ishikawa, Kenichi L.
Nabekawa, Yasuo
Midorikawa, Katsumi
机构：
[1] RIKEN, Laser Technol Lab, Wako, Saitama 3510198, Japan
[2] Univ Tokyo, Grad Sch Engn, Dept Quantum Engn & Syst Sci, Bunkyo Ku, Tokyo 1138656, Japan
[3] PRESTO, Japan Sci & Technol Agcy, Saitama 3320012, Japan
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 05期
关键词：
D O I：
10.1103/PhysRevLett.99.053904
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a dramatic enhancement [Phys. Rev. Lett. 91, 043002 (2003)] of high-order harmonic generation by simultaneous irradiation of booster harmonics. A key feature of our experiment is the use of mixed gases (Xe and He) with different ionization energies. The harmonics from Xe atoms act as a booster to increase the harmonic yield from He by a factor of 4 x 10(3). The dominance of the dramatic enhancement effect is supported by simulation with the time-dependent Schrodinger equation as well as the observed spatial characteristic of the generated harmonics and dependence on medium conditions.
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页数：4
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