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Influence of the medium length on high-order harmonic generation

被引：21
作者：
Delfin, C
Altucci, C
De Filippo, F
de Lisio, C
Gaarde, MB
L'Huillier, A
Roos, L
Wahlström, CG
机构：
[1] Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden
[2] Ist Nazl Fis Mat, Unit Napoli, Naples, Italy
[3] Univ Basilicata, I-85100 Potenza, Italy
[4] Univ Naples Federico II, Dipartimento Sci Fisiche, Compleso Univ Monte Sant Angelo, I-80126 Naples, Italy
[5] Niels Bohr Inst, Orsted Lab, DK-2100 Copenhagen, Denmark
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1999年 / 32卷 / 22期
关键词：
D O I：
10.1088/0953-4075/32/22/316
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study high-order harmonic generation using a 110 fs Ti:sapphire laser loosely focused into a variable-length gas cell filled with neon or argon at 5 mbar pressure. The harmonic intensity is recorded as a function of the medium length, varying between 2 and 21 mm. Several cases are examined, the 17th and the 29th harmonic in argon, and the 29th and 51st harmonic in neon, at the same intensity 4 x 10(14) W cm(-2). We find that the length which maximizes the harmonic yield varies from 10 mm to more than 20 mm. We discuss the different effects affecting the photon yield of the high-order harmonics.
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收藏
页码：5397 / 5409
页数：13
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