Temporal coherence of high-order harmonics

被引：63
|
作者：
Lyngå, C
Gaarde, MB
Delfin, C
Bellini, M
Hänsch, TW
L'Huillier, A
Wahlström, CG
机构：
[1] Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden
[2] Niels Bohr Inst, Orsted Lab, DK-2100 Copenhagen, Denmark
[3] European Lab Non Linear Spect, I-50125 Florence, Italy
[4] Univ Florence, Dept Phys, I-50125 Florence, Italy
[5] Max Planck Inst Quantum Opt, D-85740 Garching, Germany
来源：
PHYSICAL REVIEW A | 1999年 / 60卷 / 06期
关键词：
D O I：
10.1103/PhysRevA.60.4823
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Systematic studies of the temporal coherence properties of high-order harmonic radiation are presented. These complement our previous investigations [Bellini et at, Phys. Rev. Lett. 81, 297 (1998)], where we showed the separation of the far-field pattern of high-order harmonics into two distinct spatial regions with different coherence times. Here we show how the coherence time of the inner and outer regions changes as a function of the harmonic order, the laser intensity, and the focusing conditions. Good agreement with the predictions of the semiclassical model of harmonic generation is obtained. [S1050-2947(99)10312-3].
引用
收藏
页码：4823 / 4830
页数：8
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