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].

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收藏

页码：4823 / 4830

页数：8

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