High-order harmonic generation yielding tunable extreme-ultraviolet radiation of high spectral purity

被引：31

作者：

Brandi, F ^{[1
]}

Neshev, D ^{[1
]}

Ubachs, W ^{[1
]}

机构：

[1] Vrije Univ Amsterdam, Ctr Laser, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.91.163901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Production of extreme-ultraviolet radiation by high-order harmonic generation is demonstrated to yield unprecedented spectral purity of lambda/Deltalambda=2.5x10(5) at wavelengths covering the entire range 40-100 nm. Tunability and sub-cm(-1) bandwidth of the harmonics are demonstrated in recordings of the He (1s4p) and Ar (3p(5)3d(')) resonance lines at 52.2 and 86.6 nm. Frequency shift of the harmonics due to chirp-induced phenomena are investigated and found to be small, resulting in a frequency accuracy of about 5x10(-7) in the domain of extreme-ultraviolet radiation.

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页数：4

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